CoCalc -- jniCheck.cpp

GitHub Repository: PojavLauncherTeam/openjdk-aarch32-jdk8u
Path: blob/jdk8u272-b10-aarch32-20201026/hotspot/src/share/vm/prims/jniCheck.cpp
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/*
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 * Copyright (c) 2001, 2019, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "memory/guardedMemory.hpp"
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#include "oops/instanceKlass.hpp"
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#include "oops/oop.inline.hpp"
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#include "oops/symbol.hpp"
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#include "prims/jni.h"
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#include "prims/jniCheck.hpp"
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#include "prims/jvm_misc.hpp"
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#include "runtime/fieldDescriptor.hpp"
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#include "runtime/handles.hpp"
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#include "runtime/interfaceSupport.hpp"
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#include "runtime/jfieldIDWorkaround.hpp"
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#include "runtime/thread.inline.hpp"
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#ifdef TARGET_ARCH_x86
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# include "jniTypes_x86.hpp"
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#endif
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#ifdef TARGET_ARCH_aarch64
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# include "jniTypes_aarch64.hpp"
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#endif
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#ifdef TARGET_ARCH_sparc
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# include "jniTypes_sparc.hpp"
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#endif
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#ifdef TARGET_ARCH_zero
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# include "jniTypes_zero.hpp"
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#endif
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#ifdef TARGET_ARCH_arm
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# include "jniTypes_arm.hpp"
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#endif
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#ifdef TARGET_ARCH_ppc
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# include "jniTypes_ppc.hpp"
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#endif
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#ifdef TARGET_ARCH_aarch32
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# include "jniTypes_aarch32.hpp"
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#endif
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// Complain every extra number of unplanned local refs
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#define CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD 32
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// Heap objects are allowed to be directly referenced only in VM code,
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// not in native code.
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#define ASSERT_OOPS_ALLOWED                                          \
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    assert(JavaThread::current()->thread_state() == _thread_in_vm,   \
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           "jniCheck examining oops in bad state.")
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// Execute the given block of source code with the thread in VM state.
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// To do this, transition from the NATIVE state to the VM state, execute
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// the code, and transtition back.  The ThreadInVMfromNative constructor
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// performs the transition to VM state, its destructor restores the
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// NATIVE state.
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#define IN_VM(source_code)   {                                         \
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    {                                                                  \
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      ThreadInVMfromNative __tiv(thr);                                 \
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      source_code                                                      \
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    }                                                                  \
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  }
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86

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/*
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 * DECLARATIONS
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 */
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static struct JNINativeInterface_ * unchecked_jni_NativeInterface;
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93

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/*
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 * MACRO DEFINITIONS
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 */
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// All JNI checked functions here use JNI_ENTRY_CHECKED() instead of the
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// QUICK_ENTRY or LEAF variants found in jni.cpp.  This allows handles
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// to be created if a fatal error should occur.
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// Check for thread not attached to VM;  need to catch this before
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// assertions in the wrapper routines might fire
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// Check for env being the one value appropriate for this thread.
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#define JNI_ENTRY_CHECKED(result_type, header)                           \
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extern "C" {                                                             \
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  result_type JNICALL header {                                           \
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    JavaThread* thr = (JavaThread*)ThreadLocalStorage::get_thread_slow();\
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    if (thr == NULL || !thr->is_Java_thread()) {                         \
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      tty->print_cr("%s", fatal_using_jnienv_in_nonjava);                      \
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      os::abort(true);                                                   \
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    }                                                                    \
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    JNIEnv* xenv = thr->jni_environment();                               \
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    if (env != xenv) {                                                   \
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      NativeReportJNIFatalError(thr, warn_wrong_jnienv);                 \
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    }                                                                    \
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    VM_ENTRY_BASE(result_type, header, thr)
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#define UNCHECKED() (unchecked_jni_NativeInterface)
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static const char * warn_wrong_jnienv = "Using JNIEnv in the wrong thread";
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static const char * warn_bad_class_descriptor = "JNI FindClass received a bad class descriptor \"%s\".  A correct class descriptor " \
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  "has no leading \"L\" or trailing \";\".  Incorrect descriptors will not be accepted in future releases.";
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static const char * fatal_using_jnienv_in_nonjava = "FATAL ERROR in native method: Using JNIEnv in non-Java thread";
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static const char * warn_other_function_in_critical = "Warning: Calling other JNI functions in the scope of " \
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  "Get/ReleasePrimitiveArrayCritical or Get/ReleaseStringCritical";
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static const char * fatal_bad_ref_to_jni = "Bad global or local ref passed to JNI";
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static const char * fatal_received_null_class = "JNI received a null class";
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static const char * fatal_class_not_a_class = "JNI received a class argument that is not a class";
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static const char * fatal_class_not_a_throwable_class = "JNI Throw or ThrowNew received a class argument that is not a Throwable or Throwable subclass";
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static const char * fatal_wrong_class_or_method = "Wrong object class or methodID passed to JNI call";
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static const char * fatal_non_weak_method = "non-weak methodID passed to JNI call";
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static const char * fatal_unknown_array_object = "Unknown array object passed to JNI array operations";
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static const char * fatal_object_array_expected = "Object array expected but not received for JNI array operation";
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static const char * fatal_prim_type_array_expected = "Primitive type array expected but not received for JNI array operation";
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static const char * fatal_non_array  = "Non-array passed to JNI array operations";
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static const char * fatal_element_type_mismatch = "Array element type mismatch in JNI";
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static const char * fatal_should_be_static = "Non-static field ID passed to JNI";
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static const char * fatal_wrong_static_field = "Wrong static field ID passed to JNI";
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static const char * fatal_static_field_not_found = "Static field not found in JNI get/set field operations";
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static const char * fatal_static_field_mismatch = "Field type (static) mismatch in JNI get/set field operations";
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static const char * fatal_should_be_nonstatic = "Static field ID passed to JNI";
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static const char * fatal_null_object = "Null object passed to JNI";
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static const char * fatal_wrong_field = "Wrong field ID passed to JNI";
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static const char * fatal_instance_field_not_found = "Instance field not found in JNI get/set field operations";
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static const char * fatal_instance_field_mismatch = "Field type (instance) mismatch in JNI get/set field operations";
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static const char * fatal_non_string = "JNI string operation received a non-string";
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// When in VM state:
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static void ReportJNIWarning(JavaThread* thr, const char *msg) {
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  tty->print_cr("WARNING in native method: %s", msg);
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  thr->print_stack();
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}
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// When in NATIVE state:
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static void NativeReportJNIFatalError(JavaThread* thr, const char *msg) {
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  IN_VM(
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    ReportJNIFatalError(thr, msg);
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  )
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}
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static void NativeReportJNIWarning(JavaThread* thr, const char *msg) {
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  IN_VM(
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    ReportJNIWarning(thr, msg);
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  )
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}
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174

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/*
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 * SUPPORT FUNCTIONS
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 */
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/**
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 * Check whether or not a programmer has actually checked for exceptions. According
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 * to the JNI Specification ("jni/spec/design.html#java_exceptions"):
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 *
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 * There are two cases where the programmer needs to check for exceptions without
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 * being able to first check an error code:
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 *
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 * - The JNI functions that invoke a Java method return the result of the Java method.
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 * The programmer must call ExceptionOccurred() to check for possible exceptions
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 * that occurred during the execution of the Java method.
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 *
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 * - Some of the JNI array access functions do not return an error code, but may
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 * throw an ArrayIndexOutOfBoundsException or ArrayStoreException.
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 *
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 * In all other cases, a non-error return value guarantees that no exceptions have been thrown.
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 *
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 * Programmers often defend against ArrayIndexOutOfBoundsException, so warning
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 * for these functions would be pedantic.
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 */
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static inline void
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check_pending_exception(JavaThread* thr) {
200
  if (thr->has_pending_exception()) {
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    NativeReportJNIWarning(thr, "JNI call made with exception pending");
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  }
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  if (thr->is_pending_jni_exception_check()) {
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    IN_VM(
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      tty->print_cr("WARNING in native method: JNI call made without checking exceptions when required to from %s",
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        thr->get_pending_jni_exception_check());
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      thr->print_stack();
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    )
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    thr->clear_pending_jni_exception_check(); // Just complain once
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  }
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}
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/**
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 * Add to the planned number of handles. I.e. plus current live & warning threshold
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 */
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static inline void
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add_planned_handle_capacity(JNIHandleBlock* handles, size_t capacity) {
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  handles->set_planned_capacity(capacity +
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                                handles->get_number_of_live_handles() +
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                                CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD);
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}
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223

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static inline void
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functionEnterCritical(JavaThread* thr)
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{
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  check_pending_exception(thr);
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}
229

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static inline void
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functionEnterCriticalExceptionAllowed(JavaThread* thr)
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{
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}
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static inline void
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functionEnter(JavaThread* thr)
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{
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  if (thr->in_critical()) {
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    tty->print_cr("%s", warn_other_function_in_critical);
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  }
241
  check_pending_exception(thr);
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}
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static inline void
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functionEnterExceptionAllowed(JavaThread* thr)
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{
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  if (thr->in_critical()) {
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    tty->print_cr("%s", warn_other_function_in_critical);
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  }
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}
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static inline void
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functionExit(JavaThread* thr)
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{
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  JNIHandleBlock* handles = thr->active_handles();
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  size_t planned_capacity = handles->get_planned_capacity();
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  size_t live_handles = handles->get_number_of_live_handles();
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  if (live_handles > planned_capacity) {
259
    IN_VM(
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      tty->print_cr("WARNING: JNI local refs: %zu, exceeds capacity: %zu",
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          live_handles, planned_capacity);
262
      thr->print_stack();
263
    )
264
    // Complain just the once, reset to current + warn threshold
265
    add_planned_handle_capacity(handles, 0);
266
  }
267
}
268

269
static inline void
270
checkStaticFieldID(JavaThread* thr, jfieldID fid, jclass cls, int ftype)
271
{
272
  fieldDescriptor fd;
273

274
  /* make sure it is a static field */
275
  if (!jfieldIDWorkaround::is_static_jfieldID(fid))
276
    ReportJNIFatalError(thr, fatal_should_be_static);
277

278
  /* validate the class being passed */
279
  ASSERT_OOPS_ALLOWED;
280
  Klass* k_oop = jniCheck::validate_class(thr, cls, false);
281

282
  /* check for proper subclass hierarchy */
283
  JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fid);
284
  Klass* f_oop = id->holder();
285
  if (!InstanceKlass::cast(k_oop)->is_subtype_of(f_oop))
286
    ReportJNIFatalError(thr, fatal_wrong_static_field);
287

288
  /* check for proper field type */
289
  if (!id->find_local_field(&fd))
290
    ReportJNIFatalError(thr, fatal_static_field_not_found);
291
  if ((fd.field_type() != ftype) &&
292
      !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) {
293
    ReportJNIFatalError(thr, fatal_static_field_mismatch);
294
  }
295
}
296

297
static inline void
298
checkInstanceFieldID(JavaThread* thr, jfieldID fid, jobject obj, int ftype)
299
{
300
  fieldDescriptor fd;
301

302
  /* make sure it is an instance field */
303
  if (jfieldIDWorkaround::is_static_jfieldID(fid))
304
    ReportJNIFatalError(thr, fatal_should_be_nonstatic);
305

306
  /* validate the object being passed and then get its class */
307
  ASSERT_OOPS_ALLOWED;
308
  oop oopObj = jniCheck::validate_object(thr, obj);
309
  if (!oopObj) {
310
    ReportJNIFatalError(thr, fatal_null_object);
311
  }
312
  Klass* k_oop = oopObj->klass();
313

314
  if (!jfieldIDWorkaround::is_valid_jfieldID(k_oop, fid)) {
315
    ReportJNIFatalError(thr, fatal_wrong_field);
316
  }
317

318
  /* make sure the field exists */
319
  int offset = jfieldIDWorkaround::from_instance_jfieldID(k_oop, fid);
320
  if (!InstanceKlass::cast(k_oop)->contains_field_offset(offset))
321
    ReportJNIFatalError(thr, fatal_wrong_field);
322

323
  /* check for proper field type */
324
  if (!InstanceKlass::cast(k_oop)->find_field_from_offset(offset,
325
                                                              false, &fd))
326
    ReportJNIFatalError(thr, fatal_instance_field_not_found);
327

328
  if ((fd.field_type() != ftype) &&
329
      !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) {
330
    ReportJNIFatalError(thr, fatal_instance_field_mismatch);
331
  }
332
}
333

334
static inline void
335
checkString(JavaThread* thr, jstring js)
336
{
337
  ASSERT_OOPS_ALLOWED;
338
  oop s = jniCheck::validate_object(thr, js);
339
  if (!s || !java_lang_String::is_instance(s))
340
    ReportJNIFatalError(thr, fatal_non_string);
341
}
342

343
static inline arrayOop
344
check_is_array(JavaThread* thr, jarray jArray)
345
{
346
  ASSERT_OOPS_ALLOWED;
347
  arrayOop aOop;
348

349
  aOop = (arrayOop)jniCheck::validate_object(thr, jArray);
350
  if (aOop == NULL || !aOop->is_array()) {
351
    ReportJNIFatalError(thr, fatal_non_array);
352
  }
353
  return aOop;
354
}
355

356
static inline arrayOop
357
check_is_primitive_array(JavaThread* thr, jarray jArray) {
358
  arrayOop aOop = check_is_array(thr, jArray);
359

360
  if (!aOop->is_typeArray()) {
361
     ReportJNIFatalError(thr, fatal_prim_type_array_expected);
362
  }
363
  return aOop;
364
}
365

366
static inline void
367
check_primitive_array_type(JavaThread* thr, jarray jArray, BasicType elementType)
368
{
369
  BasicType array_type;
370
  arrayOop aOop;
371

372
  aOop = check_is_primitive_array(thr, jArray);
373
  array_type = TypeArrayKlass::cast(aOop->klass())->element_type();
374
  if (array_type != elementType) {
375
    ReportJNIFatalError(thr, fatal_element_type_mismatch);
376
  }
377
}
378

379
static inline void
380
check_is_obj_array(JavaThread* thr, jarray jArray) {
381
  arrayOop aOop = check_is_array(thr, jArray);
382
  if (!aOop->is_objArray()) {
383
    ReportJNIFatalError(thr, fatal_object_array_expected);
384
  }
385
}
386

387
/*
388
 * Copy and wrap array elements for bounds checking.
389
 * Remember the original elements (GuardedMemory::get_tag())
390
 */
391
static void* check_jni_wrap_copy_array(JavaThread* thr, jarray array,
392
    void* orig_elements) {
393
  void* result;
394
  IN_VM(
395
    oop a = JNIHandles::resolve_non_null(array);
396
    size_t len = arrayOop(a)->length() <<
397
        TypeArrayKlass::cast(a->klass())->log2_element_size();
398
    result = GuardedMemory::wrap_copy(orig_elements, len, orig_elements);
399
  )
400
  return result;
401
}
402

403
static void* check_wrapped_array(JavaThread* thr, const char* fn_name,
404
    void* obj, void* carray, size_t* rsz) {
405
  if (carray == NULL) {
406
    tty->print_cr("%s: elements vector NULL" PTR_FORMAT, fn_name, p2i(obj));
407
    NativeReportJNIFatalError(thr, "Elements vector NULL");
408
  }
409
  GuardedMemory guarded(carray);
410
  void* orig_result = guarded.get_tag();
411
  if (!guarded.verify_guards()) {
412
    tty->print_cr("ReleasePrimitiveArrayCritical: release array failed bounds "
413
        "check, incorrect pointer returned ? array: " PTR_FORMAT " carray: "
414
        PTR_FORMAT, p2i(obj), p2i(carray));
415
    guarded.print_on(tty);
416
    NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: "
417
        "failed bounds check");
418
  }
419
  if (orig_result == NULL) {
420
    tty->print_cr("ReleasePrimitiveArrayCritical: unrecognized elements. array: "
421
        PTR_FORMAT " carray: " PTR_FORMAT, p2i(obj), p2i(carray));
422
    guarded.print_on(tty);
423
    NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: "
424
        "unrecognized elements");
425
  }
426
  if (rsz != NULL) {
427
    *rsz = guarded.get_user_size();
428
  }
429
  return orig_result;
430
}
431

432
static void* check_wrapped_array_release(JavaThread* thr, const char* fn_name,
433
    void* obj, void* carray, jint mode) {
434
  size_t sz;
435
  void* orig_result = check_wrapped_array(thr, fn_name, obj, carray, &sz);
436
  switch (mode) {
437
  // As we never make copies, mode 0 and JNI_COMMIT are the same.
438
  case 0:
439
  case JNI_COMMIT:
440
    memcpy(orig_result, carray, sz);
441
    break;
442
  case JNI_ABORT:
443
    break;
444
  default:
445
    tty->print_cr("%s: Unrecognized mode %i releasing array "
446
        PTR_FORMAT " elements " PTR_FORMAT, fn_name, mode, p2i(obj), p2i(carray));
447
    NativeReportJNIFatalError(thr, "Unrecognized array release mode");
448
  }
449
  // We always need to release the copy we made with GuardedMemory
450
  GuardedMemory::free_copy(carray);
451
  return orig_result;
452
}
453

454
oop jniCheck::validate_handle(JavaThread* thr, jobject obj) {
455
  if (JNIHandles::is_frame_handle(thr, obj) ||
456
      JNIHandles::is_local_handle(thr, obj) ||
457
      JNIHandles::is_global_handle(obj) ||
458
      JNIHandles::is_weak_global_handle(obj)) {
459
    ASSERT_OOPS_ALLOWED;
460
    return JNIHandles::resolve_external_guard(obj);
461
  }
462
  ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
463
  return NULL;
464
}
465

466

467
Method* jniCheck::validate_jmethod_id(JavaThread* thr, jmethodID method_id) {
468
  ASSERT_OOPS_ALLOWED;
469
  // Do the jmethodID check
470
  Method* moop = Method::checked_resolve_jmethod_id(method_id);
471
  if (moop == NULL) {
472
    ReportJNIFatalError(thr, fatal_wrong_class_or_method);
473
  }
474
  return moop;
475
}
476

477

478
oop jniCheck::validate_object(JavaThread* thr, jobject obj) {
479
    if (!obj)
480
        return NULL;
481
    ASSERT_OOPS_ALLOWED;
482
    oop oopObj = jniCheck::validate_handle(thr, obj);
483
    if (!oopObj) {
484
      ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
485
    }
486
    return oopObj;
487
}
488

489
// Warn if a class descriptor is in decorated form; class descriptors
490
// passed to JNI findClass should not be decorated unless they are
491
// array descriptors.
492
void jniCheck::validate_class_descriptor(JavaThread* thr, const char* name) {
493
  if (name == NULL) return;  // implementation accepts NULL so just return
494

495
  size_t len = strlen(name);
496

497
  if (len >= 2 &&
498
      name[0] == JVM_SIGNATURE_CLASS &&            // 'L'
499
      name[len-1] == JVM_SIGNATURE_ENDCLASS ) {    // ';'
500
    char msg[JVM_MAXPATHLEN];
501
    jio_snprintf(msg, JVM_MAXPATHLEN, warn_bad_class_descriptor, name);
502
    ReportJNIWarning(thr, msg);
503
  }
504
}
505

506
Klass* jniCheck::validate_class(JavaThread* thr, jclass clazz, bool allow_primitive) {
507
  ASSERT_OOPS_ALLOWED;
508
  oop mirror = jniCheck::validate_handle(thr, clazz);
509
  if (!mirror) {
510
    ReportJNIFatalError(thr, fatal_received_null_class);
511
  }
512

513
  if (mirror->klass() != SystemDictionary::Class_klass()) {
514
    ReportJNIFatalError(thr, fatal_class_not_a_class);
515
  }
516

517
  Klass* k = java_lang_Class::as_Klass(mirror);
518
  // Make allowances for primitive classes ...
519
  if (!(k != NULL || allow_primitive && java_lang_Class::is_primitive(mirror))) {
520
    ReportJNIFatalError(thr, fatal_class_not_a_class);
521
  }
522
  return k;
523
}
524

525
void jniCheck::validate_throwable_klass(JavaThread* thr, Klass* klass) {
526
  ASSERT_OOPS_ALLOWED;
527
  assert(klass != NULL, "klass argument must have a value");
528

529
  if (!klass->oop_is_instance() ||
530
      !InstanceKlass::cast(klass)->is_subclass_of(SystemDictionary::Throwable_klass())) {
531
    ReportJNIFatalError(thr, fatal_class_not_a_throwable_class);
532
  }
533
}
534

535
void jniCheck::validate_call_object(JavaThread* thr, jobject obj, jmethodID method_id) {
536
  /* validate the object being passed */
537
  ASSERT_OOPS_ALLOWED;
538
  jniCheck::validate_jmethod_id(thr, method_id);
539
  jniCheck::validate_object(thr, obj);
540
}
541

542
void jniCheck::validate_call_class(JavaThread* thr, jclass clazz, jmethodID method_id) {
543
  /* validate the class being passed */
544
  ASSERT_OOPS_ALLOWED;
545
  jniCheck::validate_jmethod_id(thr, method_id);
546
  jniCheck::validate_class(thr, clazz, false);
547
}
548

549

550
/*
551
 * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE
552
 */
553

554
JNI_ENTRY_CHECKED(jclass,
555
  checked_jni_DefineClass(JNIEnv *env,
556
                          const char *name,
557
                          jobject loader,
558
                          const jbyte *buf,
559
                          jsize len))
560
    functionEnter(thr);
561
    IN_VM(
562
      jniCheck::validate_object(thr, loader);
563
    )
564
    jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len);
565
    functionExit(thr);
566
    return result;
567
JNI_END
568

569
JNI_ENTRY_CHECKED(jclass,
570
  checked_jni_FindClass(JNIEnv *env,
571
                        const char *name))
572
    functionEnter(thr);
573
    IN_VM(
574
      jniCheck::validate_class_descriptor(thr, name);
575
    )
576
    jclass result = UNCHECKED()->FindClass(env, name);
577
    functionExit(thr);
578
    return result;
579
JNI_END
580

581
JNI_ENTRY_CHECKED(jmethodID,
582
  checked_jni_FromReflectedMethod(JNIEnv *env,
583
                                  jobject method))
584
    functionEnter(thr);
585
    IN_VM(
586
      jniCheck::validate_object(thr, method);
587
    )
588
    jmethodID result = UNCHECKED()->FromReflectedMethod(env, method);
589
    functionExit(thr);
590
    return result;
591
JNI_END
592

593
JNI_ENTRY_CHECKED(jfieldID,
594
  checked_jni_FromReflectedField(JNIEnv *env,
595
                                 jobject field))
596
    functionEnter(thr);
597
    IN_VM(
598
      jniCheck::validate_object(thr, field);
599
    )
600
    jfieldID result = UNCHECKED()->FromReflectedField(env, field);
601
    functionExit(thr);
602
    return result;
603
JNI_END
604

605
JNI_ENTRY_CHECKED(jobject,
606
  checked_jni_ToReflectedMethod(JNIEnv *env,
607
                                jclass cls,
608
                                jmethodID methodID,
609
                                jboolean isStatic))
610
    functionEnter(thr);
611
    IN_VM(
612
      jniCheck::validate_class(thr, cls, false);
613
      jniCheck::validate_jmethod_id(thr, methodID);
614
    )
615
    jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID,
616
                                                    isStatic);
617
    functionExit(thr);
618
    return result;
619
JNI_END
620

621
JNI_ENTRY_CHECKED(jclass,
622
  checked_jni_GetSuperclass(JNIEnv *env,
623
                            jclass sub))
624
    functionEnter(thr);
625
    IN_VM(
626
      jniCheck::validate_class(thr, sub, true);
627
    )
628
    jclass result = UNCHECKED()->GetSuperclass(env, sub);
629
    functionExit(thr);
630
    return result;
631
JNI_END
632

633
JNI_ENTRY_CHECKED(jboolean,
634
  checked_jni_IsAssignableFrom(JNIEnv *env,
635
                               jclass sub,
636
                               jclass sup))
637
    functionEnter(thr);
638
    IN_VM(
639
      jniCheck::validate_class(thr, sub, true);
640
      jniCheck::validate_class(thr, sup, true);
641
    )
642
    jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup);
643
    functionExit(thr);
644
    return result;
645
JNI_END
646

647
JNI_ENTRY_CHECKED(jobject,
648
  checked_jni_ToReflectedField(JNIEnv *env,
649
                               jclass cls,
650
                               jfieldID fieldID,
651
                               jboolean isStatic))
652
    functionEnter(thr);
653
    IN_VM(
654
      jniCheck::validate_class(thr, cls, false);
655
    )
656
    jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID,
657
                                                   isStatic);
658
    functionExit(thr);
659
    return result;
660
JNI_END
661

662
JNI_ENTRY_CHECKED(jint,
663
  checked_jni_Throw(JNIEnv *env,
664
                    jthrowable obj))
665
    functionEnter(thr);
666
    IN_VM(
667
      oop oopObj = jniCheck::validate_object(thr, obj);
668
      if (oopObj == NULL) {
669
        // Unchecked Throw tolerates a NULL obj, so just warn
670
        ReportJNIWarning(thr, "JNI Throw called with NULL throwable");
671
      } else {
672
        jniCheck::validate_throwable_klass(thr, oopObj->klass());
673
      }
674
    )
675
    jint result = UNCHECKED()->Throw(env, obj);
676
    functionExit(thr);
677
    return result;
678
JNI_END
679

680
JNI_ENTRY_CHECKED(jint,
681
  checked_jni_ThrowNew(JNIEnv *env,
682
                       jclass clazz,
683
                       const char *msg))
684
    functionEnter(thr);
685
    IN_VM(
686
      Klass* k = jniCheck::validate_class(thr, clazz, false);
687
      assert(k != NULL, "validate_class shouldn't return NULL Klass*");
688
      jniCheck::validate_throwable_klass(thr, k);
689
    )
690
    jint result = UNCHECKED()->ThrowNew(env, clazz, msg);
691
    functionExit(thr);
692
    return result;
693
JNI_END
694

695
JNI_ENTRY_CHECKED(jthrowable,
696
  checked_jni_ExceptionOccurred(JNIEnv *env))
697
    thr->clear_pending_jni_exception_check();
698
    functionEnterExceptionAllowed(thr);
699
    jthrowable result = UNCHECKED()->ExceptionOccurred(env);
700
    functionExit(thr);
701
    return result;
702
JNI_END
703

704
JNI_ENTRY_CHECKED(void,
705
  checked_jni_ExceptionDescribe(JNIEnv *env))
706
    functionEnterExceptionAllowed(thr);
707
    UNCHECKED()->ExceptionDescribe(env);
708
    functionExit(thr);
709
JNI_END
710

711
JNI_ENTRY_CHECKED(void,
712
  checked_jni_ExceptionClear(JNIEnv *env))
713
    thr->clear_pending_jni_exception_check();
714
    functionEnterExceptionAllowed(thr);
715
    UNCHECKED()->ExceptionClear(env);
716
    functionExit(thr);
717
JNI_END
718

719
JNI_ENTRY_CHECKED(void,
720
  checked_jni_FatalError(JNIEnv *env,
721
                         const char *msg))
722
    thr->clear_pending_jni_exception_check();
723
    functionEnter(thr);
724
    UNCHECKED()->FatalError(env, msg);
725
    functionExit(thr);
726
JNI_END
727

728
JNI_ENTRY_CHECKED(jint,
729
  checked_jni_PushLocalFrame(JNIEnv *env,
730
                             jint capacity))
731
    functionEnterExceptionAllowed(thr);
732
    if (capacity < 0)
733
      NativeReportJNIFatalError(thr, "negative capacity");
734
    jint result = UNCHECKED()->PushLocalFrame(env, capacity);
735
    if (result == JNI_OK) {
736
      add_planned_handle_capacity(thr->active_handles(), capacity);
737
    }
738
    functionExit(thr);
739
    return result;
740
JNI_END
741

742
JNI_ENTRY_CHECKED(jobject,
743
  checked_jni_PopLocalFrame(JNIEnv *env,
744
                            jobject result))
745
    functionEnterExceptionAllowed(thr);
746
    jobject res = UNCHECKED()->PopLocalFrame(env, result);
747
    functionExit(thr);
748
    return res;
749
JNI_END
750

751
JNI_ENTRY_CHECKED(jobject,
752
  checked_jni_NewGlobalRef(JNIEnv *env,
753
                           jobject lobj))
754
    functionEnter(thr);
755
    IN_VM(
756
      if (lobj != NULL) {
757
        jniCheck::validate_handle(thr, lobj);
758
      }
759
    )
760
    jobject result = UNCHECKED()->NewGlobalRef(env,lobj);
761
    functionExit(thr);
762
    return result;
763
JNI_END
764

765
JNI_ENTRY_CHECKED(void,
766
  checked_jni_DeleteGlobalRef(JNIEnv *env,
767
                              jobject gref))
768
    functionEnterExceptionAllowed(thr);
769
    IN_VM(
770
      jniCheck::validate_object(thr, gref);
771
      if (gref && !JNIHandles::is_global_handle(gref)) {
772
        ReportJNIFatalError(thr,
773
            "Invalid global JNI handle passed to DeleteGlobalRef");
774
      }
775
    )
776
    UNCHECKED()->DeleteGlobalRef(env,gref);
777
    functionExit(thr);
778
JNI_END
779

780
JNI_ENTRY_CHECKED(void,
781
  checked_jni_DeleteLocalRef(JNIEnv *env,
782
                             jobject obj))
783
    functionEnterExceptionAllowed(thr);
784
    IN_VM(
785
      jniCheck::validate_object(thr, obj);
786
      if (obj && !(JNIHandles::is_local_handle(thr, obj) ||
787
                   JNIHandles::is_frame_handle(thr, obj)))
788
        ReportJNIFatalError(thr,
789
            "Invalid local JNI handle passed to DeleteLocalRef");
790
    )
791
    UNCHECKED()->DeleteLocalRef(env, obj);
792
    functionExit(thr);
793
JNI_END
794

795
JNI_ENTRY_CHECKED(jboolean,
796
  checked_jni_IsSameObject(JNIEnv *env,
797
                           jobject obj1,
798
                           jobject obj2))
799
    functionEnterExceptionAllowed(thr);
800
    IN_VM(
801
      /* This JNI function can be used to compare weak global references
802
       * to NULL objects. If the handles are valid, but contain NULL,
803
       * then don't attempt to validate the object.
804
       */
805
      if (obj1 != NULL && jniCheck::validate_handle(thr, obj1) != NULL) {
806
        jniCheck::validate_object(thr, obj1);
807
      }
808
      if (obj2 != NULL && jniCheck::validate_handle(thr, obj2) != NULL) {
809
        jniCheck::validate_object(thr, obj2);
810
      }
811
    )
812
    jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2);
813
    functionExit(thr);
814
    return result;
815
JNI_END
816

817
JNI_ENTRY_CHECKED(jobject,
818
  checked_jni_NewLocalRef(JNIEnv *env,
819
                          jobject ref))
820
    functionEnter(thr);
821
    IN_VM(
822
      if (ref != NULL) {
823
        jniCheck::validate_handle(thr, ref);
824
      }
825
    )
826
    jobject result = UNCHECKED()->NewLocalRef(env, ref);
827
    functionExit(thr);
828
    return result;
829
JNI_END
830

831
JNI_ENTRY_CHECKED(jint,
832
  checked_jni_EnsureLocalCapacity(JNIEnv *env,
833
                                  jint capacity))
834
    functionEnter(thr);
835
    if (capacity < 0) {
836
      NativeReportJNIFatalError(thr, "negative capacity");
837
    }
838
    jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity);
839
    if (result == JNI_OK) {
840
      add_planned_handle_capacity(thr->active_handles(), capacity);
841
    }
842
    functionExit(thr);
843
    return result;
844
JNI_END
845

846
JNI_ENTRY_CHECKED(jobject,
847
  checked_jni_AllocObject(JNIEnv *env,
848
                          jclass clazz))
849
    functionEnter(thr);
850
    IN_VM(
851
      jniCheck::validate_class(thr, clazz, false);
852
    )
853
    jobject result = UNCHECKED()->AllocObject(env,clazz);
854
    functionExit(thr);
855
    return result;
856
JNI_END
857

858
JNI_ENTRY_CHECKED(jobject,
859
  checked_jni_NewObject(JNIEnv *env,
860
                        jclass clazz,
861
                        jmethodID methodID,
862
                        ...))
863
    functionEnter(thr);
864
    va_list args;
865
    IN_VM(
866
      jniCheck::validate_class(thr, clazz, false);
867
      jniCheck::validate_jmethod_id(thr, methodID);
868
    )
869
    va_start(args, methodID);
870
    jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
871
    va_end(args);
872
    functionExit(thr);
873
    return result;
874
JNI_END
875

876
JNI_ENTRY_CHECKED(jobject,
877
  checked_jni_NewObjectV(JNIEnv *env,
878
                         jclass clazz,
879
                         jmethodID methodID,
880
                         va_list args))
881
    functionEnter(thr);
882
    IN_VM(
883
      jniCheck::validate_class(thr, clazz, false);
884
      jniCheck::validate_jmethod_id(thr, methodID);
885
    )
886
    jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
887
    functionExit(thr);
888
    return result;
889
JNI_END
890

891
JNI_ENTRY_CHECKED(jobject,
892
  checked_jni_NewObjectA(JNIEnv *env,
893
                         jclass clazz,
894
                         jmethodID methodID,
895
                         const jvalue *args))
896
    functionEnter(thr);
897
    IN_VM(
898
      jniCheck::validate_class(thr, clazz, false);
899
      jniCheck::validate_jmethod_id(thr, methodID);
900
    )
901
    jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args);
902
    functionExit(thr);
903
    return result;
904
JNI_END
905

906
JNI_ENTRY_CHECKED(jclass,
907
  checked_jni_GetObjectClass(JNIEnv *env,
908
                             jobject obj))
909
    functionEnter(thr);
910
    IN_VM(
911
      jniCheck::validate_object(thr, obj);
912
    )
913
    jclass result = UNCHECKED()->GetObjectClass(env,obj);
914
    functionExit(thr);
915
    return result;
916
JNI_END
917

918
JNI_ENTRY_CHECKED(jboolean,
919
  checked_jni_IsInstanceOf(JNIEnv *env,
920
                           jobject obj,
921
                           jclass clazz))
922
    functionEnter(thr);
923
    IN_VM(
924
      jniCheck::validate_object(thr, obj);
925
      jniCheck::validate_class(thr, clazz, true);
926
    )
927
    jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz);
928
    functionExit(thr);
929
    return result;
930
JNI_END
931

932
JNI_ENTRY_CHECKED(jmethodID,
933
  checked_jni_GetMethodID(JNIEnv *env,
934
                          jclass clazz,
935
                          const char *name,
936
                          const char *sig))
937
    functionEnter(thr);
938
    IN_VM(
939
      jniCheck::validate_class(thr, clazz, false);
940
    )
941
    jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig);
942
    functionExit(thr);
943
    return result;
944
JNI_END
945

946
#define WRAPPER_CallMethod(ResultType, Result) \
947
JNI_ENTRY_CHECKED(ResultType,  \
948
  checked_jni_Call##Result##Method(JNIEnv *env, \
949
                                   jobject obj, \
950
                                   jmethodID methodID, \
951
                                   ...)) \
952
    functionEnter(thr); \
953
    va_list args; \
954
    IN_VM( \
955
      jniCheck::validate_call_object(thr, obj, methodID); \
956
    ) \
957
    va_start(args,methodID); \
958
    ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \
959
                                                          args); \
960
    va_end(args); \
961
    thr->set_pending_jni_exception_check("Call"#Result"Method"); \
962
    functionExit(thr); \
963
    return result; \
964
JNI_END \
965
\
966
JNI_ENTRY_CHECKED(ResultType,  \
967
  checked_jni_Call##Result##MethodV(JNIEnv *env, \
968
                                    jobject obj, \
969
                                    jmethodID methodID, \
970
                                    va_list args)) \
971
    functionEnter(thr); \
972
    IN_VM(\
973
      jniCheck::validate_call_object(thr, obj, methodID); \
974
    ) \
975
    ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\
976
                                                           args); \
977
    thr->set_pending_jni_exception_check("Call"#Result"MethodV"); \
978
    functionExit(thr); \
979
    return result; \
980
JNI_END \
981
\
982
JNI_ENTRY_CHECKED(ResultType,  \
983
  checked_jni_Call##Result##MethodA(JNIEnv *env, \
984
                                    jobject obj, \
985
                                    jmethodID methodID, \
986
                                    const jvalue * args)) \
987
    functionEnter(thr); \
988
    IN_VM( \
989
      jniCheck::validate_call_object(thr, obj, methodID); \
990
    ) \
991
    ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\
992
                                                           args); \
993
    thr->set_pending_jni_exception_check("Call"#Result"MethodA"); \
994
    functionExit(thr); \
995
    return result; \
996
JNI_END
997

998
WRAPPER_CallMethod(jobject,Object)
999
WRAPPER_CallMethod(jboolean,Boolean)
1000
WRAPPER_CallMethod(jbyte,Byte)
1001
WRAPPER_CallMethod(jshort,Short)
1002
WRAPPER_CallMethod(jchar,Char)
1003
WRAPPER_CallMethod(jint,Int)
1004
WRAPPER_CallMethod(jlong,Long)
1005
WRAPPER_CallMethod(jfloat,Float)
1006
WRAPPER_CallMethod(jdouble,Double)
1007

1008
JNI_ENTRY_CHECKED(void,
1009
  checked_jni_CallVoidMethod(JNIEnv *env, \
1010
                             jobject obj, \
1011
                             jmethodID methodID, \
1012
                             ...))
1013
    functionEnter(thr);
1014
    va_list args;
1015
    IN_VM(
1016
      jniCheck::validate_call_object(thr, obj, methodID);
1017
    )
1018
    va_start(args,methodID);
1019
    UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1020
    va_end(args);
1021
    thr->set_pending_jni_exception_check("CallVoidMethod");
1022
    functionExit(thr);
1023
JNI_END
1024

1025
JNI_ENTRY_CHECKED(void,
1026
  checked_jni_CallVoidMethodV(JNIEnv *env,
1027
                              jobject obj,
1028
                              jmethodID methodID,
1029
                              va_list args))
1030
    functionEnter(thr);
1031
    IN_VM(
1032
      jniCheck::validate_call_object(thr, obj, methodID);
1033
    )
1034
    UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1035
    thr->set_pending_jni_exception_check("CallVoidMethodV");
1036
    functionExit(thr);
1037
JNI_END
1038

1039
JNI_ENTRY_CHECKED(void,
1040
  checked_jni_CallVoidMethodA(JNIEnv *env,
1041
                              jobject obj,
1042
                              jmethodID methodID,
1043
                              const jvalue * args))
1044
    functionEnter(thr);
1045
    IN_VM(
1046
      jniCheck::validate_call_object(thr, obj, methodID);
1047
    )
1048
    UNCHECKED()->CallVoidMethodA(env,obj,methodID,args);
1049
    thr->set_pending_jni_exception_check("CallVoidMethodA");
1050
    functionExit(thr);
1051
JNI_END
1052

1053
#define WRAPPER_CallNonvirtualMethod(ResultType, Result) \
1054
JNI_ENTRY_CHECKED(ResultType,  \
1055
  checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \
1056
                                             jobject obj, \
1057
                                             jclass clazz, \
1058
                                             jmethodID methodID, \
1059
                                             ...)) \
1060
    functionEnter(thr); \
1061
    va_list args; \
1062
    IN_VM( \
1063
      jniCheck::validate_call_object(thr, obj, methodID); \
1064
      jniCheck::validate_call_class(thr, clazz, methodID); \
1065
    ) \
1066
    va_start(args,methodID); \
1067
    ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1068
                                                                     obj, \
1069
                                                                     clazz, \
1070
                                                                     methodID,\
1071
                                                                     args); \
1072
    va_end(args); \
1073
    thr->set_pending_jni_exception_check("CallNonvirtual"#Result"Method"); \
1074
    functionExit(thr); \
1075
    return result; \
1076
JNI_END \
1077
\
1078
JNI_ENTRY_CHECKED(ResultType,  \
1079
  checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \
1080
                                              jobject obj, \
1081
                                              jclass clazz, \
1082
                                              jmethodID methodID, \
1083
                                              va_list args)) \
1084
    functionEnter(thr); \
1085
    IN_VM( \
1086
      jniCheck::validate_call_object(thr, obj, methodID); \
1087
      jniCheck::validate_call_class(thr, clazz, methodID); \
1088
    ) \
1089
    ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1090
                                                                     obj, \
1091
                                                                     clazz, \
1092
                                                                     methodID,\
1093
                                                                     args); \
1094
    thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodV"); \
1095
    functionExit(thr); \
1096
    return result; \
1097
JNI_END \
1098
\
1099
JNI_ENTRY_CHECKED(ResultType,  \
1100
  checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \
1101
                                              jobject obj, \
1102
                                              jclass clazz, \
1103
                                              jmethodID methodID, \
1104
                                              const jvalue * args)) \
1105
    functionEnter(thr); \
1106
    IN_VM( \
1107
      jniCheck::validate_call_object(thr, obj, methodID); \
1108
      jniCheck::validate_call_class(thr, clazz, methodID); \
1109
    ) \
1110
    ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \
1111
                                                                     obj, \
1112
                                                                     clazz, \
1113
                                                                     methodID,\
1114
                                                                     args); \
1115
    thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodA"); \
1116
    functionExit(thr); \
1117
    return result; \
1118
JNI_END
1119

1120
WRAPPER_CallNonvirtualMethod(jobject,Object)
1121
WRAPPER_CallNonvirtualMethod(jboolean,Boolean)
1122
WRAPPER_CallNonvirtualMethod(jbyte,Byte)
1123
WRAPPER_CallNonvirtualMethod(jshort,Short)
1124
WRAPPER_CallNonvirtualMethod(jchar,Char)
1125
WRAPPER_CallNonvirtualMethod(jint,Int)
1126
WRAPPER_CallNonvirtualMethod(jlong,Long)
1127
WRAPPER_CallNonvirtualMethod(jfloat,Float)
1128
WRAPPER_CallNonvirtualMethod(jdouble,Double)
1129

1130
JNI_ENTRY_CHECKED(void,
1131
  checked_jni_CallNonvirtualVoidMethod(JNIEnv *env,
1132
                                       jobject obj,
1133
                                       jclass clazz,
1134
                                       jmethodID methodID,
1135
                                       ...))
1136
    functionEnter(thr);
1137
    va_list args;
1138
    IN_VM(
1139
      jniCheck::validate_call_object(thr, obj, methodID);
1140
      jniCheck::validate_call_class(thr, clazz, methodID);
1141
    )
1142
    va_start(args,methodID);
1143
    UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1144
    va_end(args);
1145
    thr->set_pending_jni_exception_check("CallNonvirtualVoidMethod");
1146
    functionExit(thr);
1147
JNI_END
1148

1149
JNI_ENTRY_CHECKED(void,
1150
  checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env,
1151
                                        jobject obj,
1152
                                        jclass clazz,
1153
                                        jmethodID methodID,
1154
                                        va_list args))
1155
    functionEnter(thr);
1156
    IN_VM(
1157
      jniCheck::validate_call_object(thr, obj, methodID);
1158
      jniCheck::validate_call_class(thr, clazz, methodID);
1159
    )
1160
    UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1161
    thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodV");
1162
    functionExit(thr);
1163
JNI_END
1164

1165
JNI_ENTRY_CHECKED(void,
1166
  checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env,
1167
                                        jobject obj,
1168
                                        jclass clazz,
1169
                                        jmethodID methodID,
1170
                                        const jvalue * args))
1171
    functionEnter(thr);
1172
    IN_VM(
1173
      jniCheck::validate_call_object(thr, obj, methodID);
1174
      jniCheck::validate_call_class(thr, clazz, methodID);
1175
    )
1176
    UNCHECKED()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args);
1177
    thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodA");
1178
    functionExit(thr);
1179
JNI_END
1180

1181
JNI_ENTRY_CHECKED(jfieldID,
1182
  checked_jni_GetFieldID(JNIEnv *env,
1183
                         jclass clazz,
1184
                         const char *name,
1185
                         const char *sig))
1186
    functionEnter(thr);
1187
    IN_VM(
1188
      jniCheck::validate_class(thr, clazz, false);
1189
    )
1190
    jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig);
1191
    functionExit(thr);
1192
    return result;
1193
JNI_END
1194

1195
#define WRAPPER_GetField(ReturnType,Result,FieldType) \
1196
JNI_ENTRY_CHECKED(ReturnType,  \
1197
  checked_jni_Get##Result##Field(JNIEnv *env, \
1198
                                 jobject obj, \
1199
                                 jfieldID fieldID)) \
1200
    functionEnter(thr); \
1201
    IN_VM( \
1202
      checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1203
    ) \
1204
    ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \
1205
    functionExit(thr); \
1206
    return result; \
1207
JNI_END
1208

1209
WRAPPER_GetField(jobject,  Object,  T_OBJECT)
1210
WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN)
1211
WRAPPER_GetField(jbyte,    Byte,    T_BYTE)
1212
WRAPPER_GetField(jshort,   Short,   T_SHORT)
1213
WRAPPER_GetField(jchar,    Char,    T_CHAR)
1214
WRAPPER_GetField(jint,     Int,     T_INT)
1215
WRAPPER_GetField(jlong,    Long,    T_LONG)
1216
WRAPPER_GetField(jfloat,   Float,   T_FLOAT)
1217
WRAPPER_GetField(jdouble,  Double,  T_DOUBLE)
1218

1219
#define WRAPPER_SetField(ValueType,Result,FieldType) \
1220
JNI_ENTRY_CHECKED(void,  \
1221
  checked_jni_Set##Result##Field(JNIEnv *env, \
1222
                                 jobject obj, \
1223
                                 jfieldID fieldID, \
1224
                                 ValueType val)) \
1225
    functionEnter(thr); \
1226
    IN_VM( \
1227
      checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1228
    ) \
1229
    UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \
1230
    functionExit(thr); \
1231
JNI_END
1232

1233
WRAPPER_SetField(jobject,  Object,  T_OBJECT)
1234
WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN)
1235
WRAPPER_SetField(jbyte,    Byte,    T_BYTE)
1236
WRAPPER_SetField(jshort,   Short,   T_SHORT)
1237
WRAPPER_SetField(jchar,    Char,    T_CHAR)
1238
WRAPPER_SetField(jint,     Int,     T_INT)
1239
WRAPPER_SetField(jlong,    Long,    T_LONG)
1240
WRAPPER_SetField(jfloat,   Float,   T_FLOAT)
1241
WRAPPER_SetField(jdouble,  Double,  T_DOUBLE)
1242

1243

1244
JNI_ENTRY_CHECKED(jmethodID,
1245
  checked_jni_GetStaticMethodID(JNIEnv *env,
1246
                                jclass clazz,
1247
                                const char *name,
1248
                                const char *sig))
1249
    functionEnter(thr);
1250
    IN_VM(
1251
      jniCheck::validate_class(thr, clazz, false);
1252
    )
1253
    jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig);
1254
    functionExit(thr);
1255
    return result;
1256
JNI_END
1257

1258
#define WRAPPER_CallStaticMethod(ReturnType,Result) \
1259
JNI_ENTRY_CHECKED(ReturnType,  \
1260
  checked_jni_CallStatic##Result##Method(JNIEnv *env, \
1261
                                         jclass clazz, \
1262
                                         jmethodID methodID, \
1263
                                         ...)) \
1264
    functionEnter(thr); \
1265
    va_list args; \
1266
    IN_VM( \
1267
      jniCheck::validate_jmethod_id(thr, methodID); \
1268
      jniCheck::validate_class(thr, clazz, false); \
1269
    ) \
1270
    va_start(args,methodID); \
1271
    ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1272
                                                                 clazz, \
1273
                                                                 methodID, \
1274
                                                                 args); \
1275
    va_end(args); \
1276
    thr->set_pending_jni_exception_check("CallStatic"#Result"Method"); \
1277
    functionExit(thr); \
1278
    return result; \
1279
JNI_END \
1280
\
1281
JNI_ENTRY_CHECKED(ReturnType,  \
1282
  checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \
1283
                                          jclass clazz, \
1284
                                          jmethodID methodID,\
1285
                                          va_list args)) \
1286
    functionEnter(thr); \
1287
    IN_VM( \
1288
      jniCheck::validate_jmethod_id(thr, methodID); \
1289
      jniCheck::validate_class(thr, clazz, false); \
1290
    ) \
1291
    ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1292
                                                                 clazz, \
1293
                                                                 methodID, \
1294
                                                                 args); \
1295
    thr->set_pending_jni_exception_check("CallStatic"#Result"MethodV"); \
1296
    functionExit(thr); \
1297
    return result; \
1298
JNI_END \
1299
\
1300
JNI_ENTRY_CHECKED(ReturnType,  \
1301
  checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \
1302
                                          jclass clazz, \
1303
                                          jmethodID methodID, \
1304
                                          const jvalue *args)) \
1305
    functionEnter(thr); \
1306
    IN_VM( \
1307
      jniCheck::validate_jmethod_id(thr, methodID); \
1308
      jniCheck::validate_class(thr, clazz, false); \
1309
    ) \
1310
    ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \
1311
                                                                 clazz, \
1312
                                                                 methodID, \
1313
                                                                 args); \
1314
    thr->set_pending_jni_exception_check("CallStatic"#Result"MethodA"); \
1315
    functionExit(thr); \
1316
    return result; \
1317
JNI_END
1318

1319
WRAPPER_CallStaticMethod(jobject,Object)
1320
WRAPPER_CallStaticMethod(jboolean,Boolean)
1321
WRAPPER_CallStaticMethod(jbyte,Byte)
1322
WRAPPER_CallStaticMethod(jshort,Short)
1323
WRAPPER_CallStaticMethod(jchar,Char)
1324
WRAPPER_CallStaticMethod(jint,Int)
1325
WRAPPER_CallStaticMethod(jlong,Long)
1326
WRAPPER_CallStaticMethod(jfloat,Float)
1327
WRAPPER_CallStaticMethod(jdouble,Double)
1328

1329
JNI_ENTRY_CHECKED(void,
1330
  checked_jni_CallStaticVoidMethod(JNIEnv *env,
1331
                                   jclass cls,
1332
                                   jmethodID methodID,
1333
                                   ...))
1334
    functionEnter(thr);
1335
    va_list args;
1336
    IN_VM(
1337
      jniCheck::validate_jmethod_id(thr, methodID);
1338
      jniCheck::validate_class(thr, cls, false);
1339
    )
1340
    va_start(args,methodID);
1341
    UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1342
    va_end(args);
1343
    thr->set_pending_jni_exception_check("CallStaticVoidMethod");
1344
    functionExit(thr);
1345
JNI_END
1346

1347
JNI_ENTRY_CHECKED(void,
1348
  checked_jni_CallStaticVoidMethodV(JNIEnv *env,
1349
                                    jclass cls,
1350
                                    jmethodID methodID,
1351
                                    va_list args))
1352
    functionEnter(thr);
1353
    IN_VM(
1354
      jniCheck::validate_jmethod_id(thr, methodID);
1355
      jniCheck::validate_class(thr, cls, false);
1356
    )
1357
    UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1358
    thr->set_pending_jni_exception_check("CallStaticVoidMethodV");
1359
    functionExit(thr);
1360
JNI_END
1361

1362
JNI_ENTRY_CHECKED(void,
1363
  checked_jni_CallStaticVoidMethodA(JNIEnv *env,
1364
                                    jclass cls,
1365
                                    jmethodID methodID,
1366
                                    const jvalue * args))
1367
    functionEnter(thr);
1368
    IN_VM(
1369
      jniCheck::validate_jmethod_id(thr, methodID);
1370
      jniCheck::validate_class(thr, cls, false);
1371
    )
1372
    UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args);
1373
    thr->set_pending_jni_exception_check("CallStaticVoidMethodA");
1374
    functionExit(thr);
1375
JNI_END
1376

1377
JNI_ENTRY_CHECKED(jfieldID,
1378
  checked_jni_GetStaticFieldID(JNIEnv *env,
1379
                               jclass clazz,
1380
                               const char *name,
1381
                               const char *sig))
1382
    functionEnter(thr);
1383
    IN_VM(
1384
      jniCheck::validate_class(thr, clazz, false);
1385
    )
1386
    jfieldID result = UNCHECKED()->GetStaticFieldID(env,clazz,name,sig);
1387
    functionExit(thr);
1388
    return result;
1389
JNI_END
1390

1391
#define WRAPPER_GetStaticField(ReturnType,Result,FieldType) \
1392
JNI_ENTRY_CHECKED(ReturnType,  \
1393
  checked_jni_GetStatic##Result##Field(JNIEnv *env, \
1394
                                       jclass clazz, \
1395
                                       jfieldID fieldID)) \
1396
    functionEnter(thr); \
1397
    IN_VM( \
1398
      jniCheck::validate_class(thr, clazz, false); \
1399
      checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1400
    ) \
1401
    ReturnType result = UNCHECKED()->GetStatic##Result##Field(env, \
1402
                                                              clazz, \
1403
                                                              fieldID); \
1404
    functionExit(thr); \
1405
    return result; \
1406
JNI_END
1407

1408
WRAPPER_GetStaticField(jobject,  Object,  T_OBJECT)
1409
WRAPPER_GetStaticField(jboolean, Boolean, T_BOOLEAN)
1410
WRAPPER_GetStaticField(jbyte,    Byte,    T_BYTE)
1411
WRAPPER_GetStaticField(jshort,   Short,   T_SHORT)
1412
WRAPPER_GetStaticField(jchar,    Char,    T_CHAR)
1413
WRAPPER_GetStaticField(jint,     Int,     T_INT)
1414
WRAPPER_GetStaticField(jlong,    Long,    T_LONG)
1415
WRAPPER_GetStaticField(jfloat,   Float,   T_FLOAT)
1416
WRAPPER_GetStaticField(jdouble,  Double,  T_DOUBLE)
1417

1418
#define WRAPPER_SetStaticField(ValueType,Result,FieldType) \
1419
JNI_ENTRY_CHECKED(void,  \
1420
  checked_jni_SetStatic##Result##Field(JNIEnv *env, \
1421
                                       jclass clazz, \
1422
                                       jfieldID fieldID, \
1423
                                       ValueType value)) \
1424
    functionEnter(thr); \
1425
    IN_VM( \
1426
      jniCheck::validate_class(thr, clazz, false); \
1427
      checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1428
    ) \
1429
    UNCHECKED()->SetStatic##Result##Field(env,clazz,fieldID,value); \
1430
    functionExit(thr); \
1431
JNI_END
1432

1433
WRAPPER_SetStaticField(jobject,  Object,  T_OBJECT)
1434
WRAPPER_SetStaticField(jboolean, Boolean, T_BOOLEAN)
1435
WRAPPER_SetStaticField(jbyte,    Byte,    T_BYTE)
1436
WRAPPER_SetStaticField(jshort,   Short,   T_SHORT)
1437
WRAPPER_SetStaticField(jchar,    Char,    T_CHAR)
1438
WRAPPER_SetStaticField(jint,     Int,     T_INT)
1439
WRAPPER_SetStaticField(jlong,    Long,    T_LONG)
1440
WRAPPER_SetStaticField(jfloat,   Float,   T_FLOAT)
1441
WRAPPER_SetStaticField(jdouble,  Double,  T_DOUBLE)
1442

1443

1444
JNI_ENTRY_CHECKED(jstring,
1445
  checked_jni_NewString(JNIEnv *env,
1446
                        const jchar *unicode,
1447
                        jsize len))
1448
    functionEnter(thr);
1449
    jstring result = UNCHECKED()->NewString(env,unicode,len);
1450
    functionExit(thr);
1451
    return result;
1452
JNI_END
1453

1454
JNI_ENTRY_CHECKED(jsize,
1455
  checked_jni_GetStringLength(JNIEnv *env,
1456
                              jstring str))
1457
    functionEnter(thr);
1458
    IN_VM(
1459
      checkString(thr, str);
1460
    )
1461
    jsize result = UNCHECKED()->GetStringLength(env,str);
1462
    functionExit(thr);
1463
    return result;
1464
JNI_END
1465

1466
// Arbitrary (but well-known) tag
1467
const void* STRING_TAG = (void*)0x47114711;
1468

1469
JNI_ENTRY_CHECKED(const jchar *,
1470
  checked_jni_GetStringChars(JNIEnv *env,
1471
                             jstring str,
1472
                             jboolean *isCopy))
1473
    functionEnter(thr);
1474
    IN_VM(
1475
      checkString(thr, str);
1476
    )
1477
    jchar* new_result = NULL;
1478
    const jchar *result = UNCHECKED()->GetStringChars(env,str,isCopy);
1479
    assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringChars didn't return a copy as expected");
1480
    if (result != NULL) {
1481
      size_t len = UNCHECKED()->GetStringLength(env,str) + 1; // + 1 for NULL termination
1482
      len *= sizeof(jchar);
1483
      new_result = (jchar*) GuardedMemory::wrap_copy(result, len, STRING_TAG);
1484
      if (new_result == NULL) {
1485
        vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringChars");
1486
      }
1487
      // Avoiding call to UNCHECKED()->ReleaseStringChars() since that will fire unexpected dtrace probes
1488
      // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1489
      FreeHeap((char*)result);
1490
    }
1491
    functionExit(thr);
1492
    return new_result;
1493
JNI_END
1494

1495
JNI_ENTRY_CHECKED(void,
1496
  checked_jni_ReleaseStringChars(JNIEnv *env,
1497
                                 jstring str,
1498
                                 const jchar *chars))
1499
    functionEnterExceptionAllowed(thr);
1500
    IN_VM(
1501
      checkString(thr, str);
1502
    )
1503
    if (chars == NULL) {
1504
       // still do the unchecked call to allow dtrace probes
1505
       UNCHECKED()->ReleaseStringChars(env,str,chars);
1506
    }
1507
    else {
1508
      GuardedMemory guarded((void*)chars);
1509
      if (!guarded.verify_guards()) {
1510
        tty->print_cr("ReleaseStringChars: release chars failed bounds check. "
1511
            "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1512
        guarded.print_on(tty);
1513
        NativeReportJNIFatalError(thr, "ReleaseStringChars: "
1514
            "release chars failed bounds check.");
1515
      }
1516
      if (guarded.get_tag() != STRING_TAG) {
1517
        tty->print_cr("ReleaseStringChars: called on something not allocated "
1518
            "by GetStringChars. string: " PTR_FORMAT " chars: " PTR_FORMAT,
1519
            p2i(str), p2i(chars));
1520
        NativeReportJNIFatalError(thr, "ReleaseStringChars called on something "
1521
            "not allocated by GetStringChars");
1522
      }
1523
       UNCHECKED()->ReleaseStringChars(env, str,
1524
           (const jchar*) guarded.release_for_freeing());
1525
    }
1526
    functionExit(thr);
1527
JNI_END
1528

1529
JNI_ENTRY_CHECKED(jstring,
1530
  checked_jni_NewStringUTF(JNIEnv *env,
1531
                           const char *utf))
1532
    functionEnter(thr);
1533
    jstring result = UNCHECKED()->NewStringUTF(env,utf);
1534
    functionExit(thr);
1535
    return result;
1536
JNI_END
1537

1538
JNI_ENTRY_CHECKED(jsize,
1539
  checked_jni_GetStringUTFLength(JNIEnv *env,
1540
                                 jstring str))
1541
    functionEnter(thr);
1542
    IN_VM(
1543
      checkString(thr, str);
1544
    )
1545
    jsize result = UNCHECKED()->GetStringUTFLength(env,str);
1546
    functionExit(thr);
1547
    return result;
1548
JNI_END
1549

1550
// Arbitrary (but well-known) tag - different than GetStringChars
1551
const void* STRING_UTF_TAG = (void*) 0x48124812;
1552

1553
JNI_ENTRY_CHECKED(const char *,
1554
  checked_jni_GetStringUTFChars(JNIEnv *env,
1555
                                jstring str,
1556
                                jboolean *isCopy))
1557
    functionEnter(thr);
1558
    IN_VM(
1559
      checkString(thr, str);
1560
    )
1561
    char* new_result = NULL;
1562
    const char *result = UNCHECKED()->GetStringUTFChars(env,str,isCopy);
1563
    assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringUTFChars didn't return a copy as expected");
1564
    if (result != NULL) {
1565
      size_t len = strlen(result) + 1; // + 1 for NULL termination
1566
      new_result = (char*) GuardedMemory::wrap_copy(result, len, STRING_UTF_TAG);
1567
      if (new_result == NULL) {
1568
        vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringUTFChars");
1569
      }
1570
      // Avoiding call to UNCHECKED()->ReleaseStringUTFChars() since that will fire unexpected dtrace probes
1571
      // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1572
      FreeHeap((char*)result, mtInternal);
1573
    }
1574
    functionExit(thr);
1575
    return new_result;
1576
JNI_END
1577

1578
JNI_ENTRY_CHECKED(void,
1579
  checked_jni_ReleaseStringUTFChars(JNIEnv *env,
1580
                                    jstring str,
1581
                                    const char* chars))
1582
    functionEnterExceptionAllowed(thr);
1583
    IN_VM(
1584
      checkString(thr, str);
1585
    )
1586
    if (chars == NULL) {
1587
       // still do the unchecked call to allow dtrace probes
1588
       UNCHECKED()->ReleaseStringUTFChars(env,str,chars);
1589
    }
1590
    else {
1591
      GuardedMemory guarded((void*)chars);
1592
      if (!guarded.verify_guards()) {
1593
        tty->print_cr("ReleaseStringUTFChars: release chars failed bounds check. "
1594
            "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1595
        guarded.print_on(tty);
1596
        NativeReportJNIFatalError(thr, "ReleaseStringUTFChars: "
1597
            "release chars failed bounds check.");
1598
      }
1599
      if (guarded.get_tag() != STRING_UTF_TAG) {
1600
        tty->print_cr("ReleaseStringUTFChars: called on something not "
1601
            "allocated by GetStringUTFChars. string: " PTR_FORMAT " chars: "
1602
            PTR_FORMAT, p2i(str), p2i(chars));
1603
        NativeReportJNIFatalError(thr, "ReleaseStringUTFChars "
1604
            "called on something not allocated by GetStringUTFChars");
1605
      }
1606
      UNCHECKED()->ReleaseStringUTFChars(env, str,
1607
          (const char*) guarded.release_for_freeing());
1608
    }
1609
    functionExit(thr);
1610
JNI_END
1611

1612
JNI_ENTRY_CHECKED(jsize,
1613
  checked_jni_GetArrayLength(JNIEnv *env,
1614
                             jarray array))
1615
    functionEnter(thr);
1616
    IN_VM(
1617
      check_is_array(thr, array);
1618
    )
1619
    jsize result = UNCHECKED()->GetArrayLength(env,array);
1620
    functionExit(thr);
1621
    return result;
1622
JNI_END
1623

1624
JNI_ENTRY_CHECKED(jobjectArray,
1625
  checked_jni_NewObjectArray(JNIEnv *env,
1626
                             jsize len,
1627
                             jclass clazz,
1628
                             jobject init))
1629
    functionEnter(thr);
1630
    jobjectArray result = UNCHECKED()->NewObjectArray(env,len,clazz,init);
1631
    functionExit(thr);
1632
    return result;
1633
JNI_END
1634

1635
JNI_ENTRY_CHECKED(jobject,
1636
  checked_jni_GetObjectArrayElement(JNIEnv *env,
1637
                                    jobjectArray array,
1638
                                    jsize index))
1639
    functionEnter(thr);
1640
    IN_VM(
1641
      check_is_obj_array(thr, array);
1642
    )
1643
    jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index);
1644
    functionExit(thr);
1645
    return result;
1646
JNI_END
1647

1648
JNI_ENTRY_CHECKED(void,
1649
  checked_jni_SetObjectArrayElement(JNIEnv *env,
1650
                                    jobjectArray array,
1651
                                    jsize index,
1652
                                    jobject val))
1653
    functionEnter(thr);
1654
    IN_VM(
1655
      check_is_obj_array(thr, array);
1656
    )
1657
    UNCHECKED()->SetObjectArrayElement(env,array,index,val);
1658
    functionExit(thr);
1659
JNI_END
1660

1661
#define WRAPPER_NewScalarArray(Return, Result) \
1662
JNI_ENTRY_CHECKED(Return, \
1663
  checked_jni_New##Result##Array(JNIEnv *env, \
1664
                                 jsize len)) \
1665
    functionEnter(thr); \
1666
    Return result = UNCHECKED()->New##Result##Array(env,len); \
1667
    functionExit(thr); \
1668
    return (Return) result; \
1669
JNI_END
1670

1671
WRAPPER_NewScalarArray(jbooleanArray, Boolean)
1672
WRAPPER_NewScalarArray(jbyteArray, Byte)
1673
WRAPPER_NewScalarArray(jshortArray, Short)
1674
WRAPPER_NewScalarArray(jcharArray, Char)
1675
WRAPPER_NewScalarArray(jintArray, Int)
1676
WRAPPER_NewScalarArray(jlongArray, Long)
1677
WRAPPER_NewScalarArray(jfloatArray, Float)
1678
WRAPPER_NewScalarArray(jdoubleArray, Double)
1679

1680
#define WRAPPER_GetScalarArrayElements(ElementTag,ElementType,Result) \
1681
JNI_ENTRY_CHECKED(ElementType *,  \
1682
  checked_jni_Get##Result##ArrayElements(JNIEnv *env, \
1683
                                         ElementType##Array array, \
1684
                                         jboolean *isCopy)) \
1685
    functionEnter(thr); \
1686
    IN_VM( \
1687
      check_primitive_array_type(thr, array, ElementTag); \
1688
    ) \
1689
    ElementType *result = UNCHECKED()->Get##Result##ArrayElements(env, \
1690
                                                                  array, \
1691
                                                                  isCopy); \
1692
    if (result != NULL) { \
1693
      result = (ElementType *) check_jni_wrap_copy_array(thr, array, result); \
1694
    } \
1695
    functionExit(thr); \
1696
    return result; \
1697
JNI_END
1698

1699
WRAPPER_GetScalarArrayElements(T_BOOLEAN, jboolean, Boolean)
1700
WRAPPER_GetScalarArrayElements(T_BYTE,    jbyte,    Byte)
1701
WRAPPER_GetScalarArrayElements(T_SHORT,   jshort,   Short)
1702
WRAPPER_GetScalarArrayElements(T_CHAR,    jchar,    Char)
1703
WRAPPER_GetScalarArrayElements(T_INT,     jint,     Int)
1704
WRAPPER_GetScalarArrayElements(T_LONG,    jlong,    Long)
1705
WRAPPER_GetScalarArrayElements(T_FLOAT,   jfloat,   Float)
1706
WRAPPER_GetScalarArrayElements(T_DOUBLE,  jdouble,  Double)
1707

1708
#define WRAPPER_ReleaseScalarArrayElements(ElementTag,ElementType,Result,Tag) \
1709
JNI_ENTRY_CHECKED(void,  \
1710
  checked_jni_Release##Result##ArrayElements(JNIEnv *env, \
1711
                                             ElementType##Array array, \
1712
                                             ElementType *elems, \
1713
                                             jint mode)) \
1714
    functionEnterExceptionAllowed(thr); \
1715
    IN_VM( \
1716
      check_primitive_array_type(thr, array, ElementTag); \
1717
      ASSERT_OOPS_ALLOWED; \
1718
      typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
1719
    ) \
1720
    ElementType* orig_result = (ElementType *) check_wrapped_array_release( \
1721
        thr, "checked_jni_Release"#Result"ArrayElements", array, elems, mode); \
1722
    UNCHECKED()->Release##Result##ArrayElements(env, array, orig_result, mode); \
1723
    functionExit(thr); \
1724
JNI_END
1725

1726
WRAPPER_ReleaseScalarArrayElements(T_BOOLEAN,jboolean, Boolean, bool)
1727
WRAPPER_ReleaseScalarArrayElements(T_BYTE,   jbyte,    Byte,    byte)
1728
WRAPPER_ReleaseScalarArrayElements(T_SHORT,  jshort,   Short,   short)
1729
WRAPPER_ReleaseScalarArrayElements(T_CHAR,   jchar,    Char,    char)
1730
WRAPPER_ReleaseScalarArrayElements(T_INT,    jint,     Int,     int)
1731
WRAPPER_ReleaseScalarArrayElements(T_LONG,   jlong,    Long,    long)
1732
WRAPPER_ReleaseScalarArrayElements(T_FLOAT,  jfloat,   Float,   float)
1733
WRAPPER_ReleaseScalarArrayElements(T_DOUBLE, jdouble,  Double,  double)
1734

1735
#define WRAPPER_GetScalarArrayRegion(ElementTag,ElementType,Result) \
1736
JNI_ENTRY_CHECKED(void,  \
1737
  checked_jni_Get##Result##ArrayRegion(JNIEnv *env, \
1738
                                       ElementType##Array array, \
1739
                                       jsize start, \
1740
                                       jsize len, \
1741
                                       ElementType *buf)) \
1742
    functionEnter(thr); \
1743
    IN_VM( \
1744
      check_primitive_array_type(thr, array, ElementTag); \
1745
    ) \
1746
    UNCHECKED()->Get##Result##ArrayRegion(env,array,start,len,buf); \
1747
    functionExit(thr); \
1748
JNI_END
1749

1750
WRAPPER_GetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1751
WRAPPER_GetScalarArrayRegion(T_BYTE,    jbyte,    Byte)
1752
WRAPPER_GetScalarArrayRegion(T_SHORT,   jshort,   Short)
1753
WRAPPER_GetScalarArrayRegion(T_CHAR,    jchar,    Char)
1754
WRAPPER_GetScalarArrayRegion(T_INT,     jint,     Int)
1755
WRAPPER_GetScalarArrayRegion(T_LONG,    jlong,    Long)
1756
WRAPPER_GetScalarArrayRegion(T_FLOAT,   jfloat,   Float)
1757
WRAPPER_GetScalarArrayRegion(T_DOUBLE,  jdouble,  Double)
1758

1759
#define WRAPPER_SetScalarArrayRegion(ElementTag,ElementType,Result) \
1760
JNI_ENTRY_CHECKED(void,  \
1761
  checked_jni_Set##Result##ArrayRegion(JNIEnv *env, \
1762
                                       ElementType##Array array, \
1763
                                       jsize start, \
1764
                                       jsize len, \
1765
                                       const ElementType *buf)) \
1766
    functionEnter(thr); \
1767
    IN_VM( \
1768
      check_primitive_array_type(thr, array, ElementTag); \
1769
    ) \
1770
    UNCHECKED()->Set##Result##ArrayRegion(env,array,start,len,buf); \
1771
    functionExit(thr); \
1772
JNI_END
1773

1774
WRAPPER_SetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1775
WRAPPER_SetScalarArrayRegion(T_BYTE,    jbyte,    Byte)
1776
WRAPPER_SetScalarArrayRegion(T_SHORT,   jshort,   Short)
1777
WRAPPER_SetScalarArrayRegion(T_CHAR,    jchar,    Char)
1778
WRAPPER_SetScalarArrayRegion(T_INT,     jint,     Int)
1779
WRAPPER_SetScalarArrayRegion(T_LONG,    jlong,    Long)
1780
WRAPPER_SetScalarArrayRegion(T_FLOAT,   jfloat,   Float)
1781
WRAPPER_SetScalarArrayRegion(T_DOUBLE,  jdouble,  Double)
1782

1783
JNI_ENTRY_CHECKED(jint,
1784
  checked_jni_RegisterNatives(JNIEnv *env,
1785
                              jclass clazz,
1786
                              const JNINativeMethod *methods,
1787
                              jint nMethods))
1788
    functionEnter(thr);
1789
    jint result = UNCHECKED()->RegisterNatives(env,clazz,methods,nMethods);
1790
    functionExit(thr);
1791
    return result;
1792
JNI_END
1793

1794
JNI_ENTRY_CHECKED(jint,
1795
  checked_jni_UnregisterNatives(JNIEnv *env,
1796
                                jclass clazz))
1797
    functionEnter(thr);
1798
    jint result = UNCHECKED()->UnregisterNatives(env,clazz);
1799
    functionExit(thr);
1800
    return result;
1801
JNI_END
1802

1803
JNI_ENTRY_CHECKED(jint,
1804
  checked_jni_MonitorEnter(JNIEnv *env,
1805
                           jobject obj))
1806
    functionEnter(thr);
1807
    IN_VM(
1808
      jniCheck::validate_object(thr, obj);
1809
    )
1810
    jint result = UNCHECKED()->MonitorEnter(env,obj);
1811
    functionExit(thr);
1812
    return result;
1813
JNI_END
1814

1815
JNI_ENTRY_CHECKED(jint,
1816
  checked_jni_MonitorExit(JNIEnv *env,
1817
                          jobject obj))
1818
    functionEnterExceptionAllowed(thr);
1819
    IN_VM(
1820
      jniCheck::validate_object(thr, obj);
1821
    )
1822
    jint result = UNCHECKED()->MonitorExit(env,obj);
1823
    functionExit(thr);
1824
    return result;
1825
JNI_END
1826

1827
JNI_ENTRY_CHECKED(jint,
1828
  checked_jni_GetJavaVM(JNIEnv *env,
1829
                        JavaVM **vm))
1830
    functionEnter(thr);
1831
    jint result = UNCHECKED()->GetJavaVM(env,vm);
1832
    functionExit(thr);
1833
    return result;
1834
JNI_END
1835

1836
JNI_ENTRY_CHECKED(void,
1837
  checked_jni_GetStringRegion(JNIEnv *env,
1838
                              jstring str,
1839
                              jsize start,
1840
                              jsize len,
1841
                              jchar *buf))
1842
    functionEnter(thr);
1843
    IN_VM(
1844
      checkString(thr, str);
1845
    )
1846
    UNCHECKED()->GetStringRegion(env, str, start, len, buf);
1847
    functionExit(thr);
1848
JNI_END
1849

1850
JNI_ENTRY_CHECKED(void,
1851
  checked_jni_GetStringUTFRegion(JNIEnv *env,
1852
                                 jstring str,
1853
                                 jsize start,
1854
                                 jsize len,
1855
                                 char *buf))
1856
    functionEnter(thr);
1857
    IN_VM(
1858
      checkString(thr, str);
1859
    )
1860
    UNCHECKED()->GetStringUTFRegion(env, str, start, len, buf);
1861
    functionExit(thr);
1862
JNI_END
1863

1864
JNI_ENTRY_CHECKED(void *,
1865
  checked_jni_GetPrimitiveArrayCritical(JNIEnv *env,
1866
                                        jarray array,
1867
                                        jboolean *isCopy))
1868
    functionEnterCritical(thr);
1869
    IN_VM(
1870
      check_is_primitive_array(thr, array);
1871
    )
1872
    void *result = UNCHECKED()->GetPrimitiveArrayCritical(env, array, isCopy);
1873
    if (result != NULL) {
1874
      result = check_jni_wrap_copy_array(thr, array, result);
1875
    }
1876
    functionExit(thr);
1877
    return result;
1878
JNI_END
1879

1880
JNI_ENTRY_CHECKED(void,
1881
  checked_jni_ReleasePrimitiveArrayCritical(JNIEnv *env,
1882
                                            jarray array,
1883
                                            void *carray,
1884
                                            jint mode))
1885
    functionEnterCriticalExceptionAllowed(thr);
1886
    IN_VM(
1887
      check_is_primitive_array(thr, array);
1888
    )
1889
    // Check the element array...
1890
    void* orig_result = check_wrapped_array_release(thr, "ReleasePrimitiveArrayCritical", array, carray, mode);
1891
    UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, orig_result, mode);
1892
    functionExit(thr);
1893
JNI_END
1894

1895
JNI_ENTRY_CHECKED(const jchar*,
1896
  checked_jni_GetStringCritical(JNIEnv *env,
1897
                                jstring string,
1898
                                jboolean *isCopy))
1899
    functionEnterCritical(thr);
1900
    IN_VM(
1901
      checkString(thr, string);
1902
    )
1903
    const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy);
1904
    functionExit(thr);
1905
    return result;
1906
JNI_END
1907

1908
JNI_ENTRY_CHECKED(void,
1909
  checked_jni_ReleaseStringCritical(JNIEnv *env,
1910
                                    jstring str,
1911
                                    const jchar *chars))
1912
    functionEnterCriticalExceptionAllowed(thr);
1913
    IN_VM(
1914
      checkString(thr, str);
1915
    )
1916
    /* The Hotspot JNI code does not use the parameters, so just check the
1917
     * string parameter as a minor sanity check
1918
     */
1919
    UNCHECKED()->ReleaseStringCritical(env, str, chars);
1920
    functionExit(thr);
1921
JNI_END
1922

1923
JNI_ENTRY_CHECKED(jweak,
1924
  checked_jni_NewWeakGlobalRef(JNIEnv *env,
1925
                               jobject obj))
1926
    functionEnter(thr);
1927
    IN_VM(
1928
      if (obj != NULL) {
1929
        jniCheck::validate_handle(thr, obj);
1930
      }
1931
    )
1932
    jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj);
1933
    functionExit(thr);
1934
    return result;
1935
JNI_END
1936

1937
JNI_ENTRY_CHECKED(void,
1938
  checked_jni_DeleteWeakGlobalRef(JNIEnv *env,
1939
                                  jweak ref))
1940
    functionEnterExceptionAllowed(thr);
1941
    UNCHECKED()->DeleteWeakGlobalRef(env, ref);
1942
    functionExit(thr);
1943
JNI_END
1944

1945
JNI_ENTRY_CHECKED(jboolean,
1946
  checked_jni_ExceptionCheck(JNIEnv *env))
1947
    thr->clear_pending_jni_exception_check();
1948
    functionEnterExceptionAllowed(thr);
1949
    jboolean result = UNCHECKED()->ExceptionCheck(env);
1950
    functionExit(thr);
1951
    return result;
1952
JNI_END
1953

1954
JNI_ENTRY_CHECKED(jobject,
1955
  checked_jni_NewDirectByteBuffer(JNIEnv *env,
1956
                                  void *address,
1957
                                  jlong capacity))
1958
    functionEnter(thr);
1959
    jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity);
1960
    functionExit(thr);
1961
    return result;
1962
JNI_END
1963

1964
JNI_ENTRY_CHECKED(void *,
1965
  checked_jni_GetDirectBufferAddress(JNIEnv *env,
1966
                                     jobject buf))
1967
    functionEnter(thr);
1968
    void* result = UNCHECKED()->GetDirectBufferAddress(env, buf);
1969
    functionExit(thr);
1970
    return result;
1971
JNI_END
1972

1973
JNI_ENTRY_CHECKED(jlong,
1974
  checked_jni_GetDirectBufferCapacity(JNIEnv *env,
1975
                                      jobject buf))
1976
    functionEnter(thr);
1977
    jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf);
1978
    functionExit(thr);
1979
    return result;
1980
JNI_END
1981

1982
JNI_ENTRY_CHECKED(jobjectRefType,
1983
  checked_jni_GetObjectRefType(JNIEnv *env,
1984
                               jobject obj))
1985
    functionEnter(thr);
1986
    /* validate the object being passed */
1987
    IN_VM(
1988
      jniCheck::validate_object(thr, obj);
1989
    )
1990
    jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj);
1991
    functionExit(thr);
1992
    return result;
1993
JNI_END
1994

1995

1996
JNI_ENTRY_CHECKED(jint,
1997
  checked_jni_GetVersion(JNIEnv *env))
1998
    functionEnter(thr);
1999
    jint result = UNCHECKED()->GetVersion(env);
2000
    functionExit(thr);
2001
    return result;
2002
JNI_END
2003

2004

2005

2006
/*
2007
 * Structure containing all checked jni functions
2008
 */
2009
struct JNINativeInterface_  checked_jni_NativeInterface = {
2010
    NULL,
2011
    NULL,
2012
    NULL,
2013

2014
    NULL,
2015

2016
    checked_jni_GetVersion,
2017

2018
    checked_jni_DefineClass,
2019
    checked_jni_FindClass,
2020

2021
    checked_jni_FromReflectedMethod,
2022
    checked_jni_FromReflectedField,
2023

2024
    checked_jni_ToReflectedMethod,
2025

2026
    checked_jni_GetSuperclass,
2027
    checked_jni_IsAssignableFrom,
2028

2029
    checked_jni_ToReflectedField,
2030

2031
    checked_jni_Throw,
2032
    checked_jni_ThrowNew,
2033
    checked_jni_ExceptionOccurred,
2034
    checked_jni_ExceptionDescribe,
2035
    checked_jni_ExceptionClear,
2036
    checked_jni_FatalError,
2037

2038
    checked_jni_PushLocalFrame,
2039
    checked_jni_PopLocalFrame,
2040

2041
    checked_jni_NewGlobalRef,
2042
    checked_jni_DeleteGlobalRef,
2043
    checked_jni_DeleteLocalRef,
2044
    checked_jni_IsSameObject,
2045

2046
    checked_jni_NewLocalRef,
2047
    checked_jni_EnsureLocalCapacity,
2048

2049
    checked_jni_AllocObject,
2050
    checked_jni_NewObject,
2051
    checked_jni_NewObjectV,
2052
    checked_jni_NewObjectA,
2053

2054
    checked_jni_GetObjectClass,
2055
    checked_jni_IsInstanceOf,
2056

2057
    checked_jni_GetMethodID,
2058

2059
    checked_jni_CallObjectMethod,
2060
    checked_jni_CallObjectMethodV,
2061
    checked_jni_CallObjectMethodA,
2062
    checked_jni_CallBooleanMethod,
2063
    checked_jni_CallBooleanMethodV,
2064
    checked_jni_CallBooleanMethodA,
2065
    checked_jni_CallByteMethod,
2066
    checked_jni_CallByteMethodV,
2067
    checked_jni_CallByteMethodA,
2068
    checked_jni_CallCharMethod,
2069
    checked_jni_CallCharMethodV,
2070
    checked_jni_CallCharMethodA,
2071
    checked_jni_CallShortMethod,
2072
    checked_jni_CallShortMethodV,
2073
    checked_jni_CallShortMethodA,
2074
    checked_jni_CallIntMethod,
2075
    checked_jni_CallIntMethodV,
2076
    checked_jni_CallIntMethodA,
2077
    checked_jni_CallLongMethod,
2078
    checked_jni_CallLongMethodV,
2079
    checked_jni_CallLongMethodA,
2080
    checked_jni_CallFloatMethod,
2081
    checked_jni_CallFloatMethodV,
2082
    checked_jni_CallFloatMethodA,
2083
    checked_jni_CallDoubleMethod,
2084
    checked_jni_CallDoubleMethodV,
2085
    checked_jni_CallDoubleMethodA,
2086
    checked_jni_CallVoidMethod,
2087
    checked_jni_CallVoidMethodV,
2088
    checked_jni_CallVoidMethodA,
2089

2090
    checked_jni_CallNonvirtualObjectMethod,
2091
    checked_jni_CallNonvirtualObjectMethodV,
2092
    checked_jni_CallNonvirtualObjectMethodA,
2093
    checked_jni_CallNonvirtualBooleanMethod,
2094
    checked_jni_CallNonvirtualBooleanMethodV,
2095
    checked_jni_CallNonvirtualBooleanMethodA,
2096
    checked_jni_CallNonvirtualByteMethod,
2097
    checked_jni_CallNonvirtualByteMethodV,
2098
    checked_jni_CallNonvirtualByteMethodA,
2099
    checked_jni_CallNonvirtualCharMethod,
2100
    checked_jni_CallNonvirtualCharMethodV,
2101
    checked_jni_CallNonvirtualCharMethodA,
2102
    checked_jni_CallNonvirtualShortMethod,
2103
    checked_jni_CallNonvirtualShortMethodV,
2104
    checked_jni_CallNonvirtualShortMethodA,
2105
    checked_jni_CallNonvirtualIntMethod,
2106
    checked_jni_CallNonvirtualIntMethodV,
2107
    checked_jni_CallNonvirtualIntMethodA,
2108
    checked_jni_CallNonvirtualLongMethod,
2109
    checked_jni_CallNonvirtualLongMethodV,
2110
    checked_jni_CallNonvirtualLongMethodA,
2111
    checked_jni_CallNonvirtualFloatMethod,
2112
    checked_jni_CallNonvirtualFloatMethodV,
2113
    checked_jni_CallNonvirtualFloatMethodA,
2114
    checked_jni_CallNonvirtualDoubleMethod,
2115
    checked_jni_CallNonvirtualDoubleMethodV,
2116
    checked_jni_CallNonvirtualDoubleMethodA,
2117
    checked_jni_CallNonvirtualVoidMethod,
2118
    checked_jni_CallNonvirtualVoidMethodV,
2119
    checked_jni_CallNonvirtualVoidMethodA,
2120

2121
    checked_jni_GetFieldID,
2122

2123
    checked_jni_GetObjectField,
2124
    checked_jni_GetBooleanField,
2125
    checked_jni_GetByteField,
2126
    checked_jni_GetCharField,
2127
    checked_jni_GetShortField,
2128
    checked_jni_GetIntField,
2129
    checked_jni_GetLongField,
2130
    checked_jni_GetFloatField,
2131
    checked_jni_GetDoubleField,
2132

2133
    checked_jni_SetObjectField,
2134
    checked_jni_SetBooleanField,
2135
    checked_jni_SetByteField,
2136
    checked_jni_SetCharField,
2137
    checked_jni_SetShortField,
2138
    checked_jni_SetIntField,
2139
    checked_jni_SetLongField,
2140
    checked_jni_SetFloatField,
2141
    checked_jni_SetDoubleField,
2142

2143
    checked_jni_GetStaticMethodID,
2144

2145
    checked_jni_CallStaticObjectMethod,
2146
    checked_jni_CallStaticObjectMethodV,
2147
    checked_jni_CallStaticObjectMethodA,
2148
    checked_jni_CallStaticBooleanMethod,
2149
    checked_jni_CallStaticBooleanMethodV,
2150
    checked_jni_CallStaticBooleanMethodA,
2151
    checked_jni_CallStaticByteMethod,
2152
    checked_jni_CallStaticByteMethodV,
2153
    checked_jni_CallStaticByteMethodA,
2154
    checked_jni_CallStaticCharMethod,
2155
    checked_jni_CallStaticCharMethodV,
2156
    checked_jni_CallStaticCharMethodA,
2157
    checked_jni_CallStaticShortMethod,
2158
    checked_jni_CallStaticShortMethodV,
2159
    checked_jni_CallStaticShortMethodA,
2160
    checked_jni_CallStaticIntMethod,
2161
    checked_jni_CallStaticIntMethodV,
2162
    checked_jni_CallStaticIntMethodA,
2163
    checked_jni_CallStaticLongMethod,
2164
    checked_jni_CallStaticLongMethodV,
2165
    checked_jni_CallStaticLongMethodA,
2166
    checked_jni_CallStaticFloatMethod,
2167
    checked_jni_CallStaticFloatMethodV,
2168
    checked_jni_CallStaticFloatMethodA,
2169
    checked_jni_CallStaticDoubleMethod,
2170
    checked_jni_CallStaticDoubleMethodV,
2171
    checked_jni_CallStaticDoubleMethodA,
2172
    checked_jni_CallStaticVoidMethod,
2173
    checked_jni_CallStaticVoidMethodV,
2174
    checked_jni_CallStaticVoidMethodA,
2175

2176
    checked_jni_GetStaticFieldID,
2177

2178
    checked_jni_GetStaticObjectField,
2179
    checked_jni_GetStaticBooleanField,
2180
    checked_jni_GetStaticByteField,
2181
    checked_jni_GetStaticCharField,
2182
    checked_jni_GetStaticShortField,
2183
    checked_jni_GetStaticIntField,
2184
    checked_jni_GetStaticLongField,
2185
    checked_jni_GetStaticFloatField,
2186
    checked_jni_GetStaticDoubleField,
2187

2188
    checked_jni_SetStaticObjectField,
2189
    checked_jni_SetStaticBooleanField,
2190
    checked_jni_SetStaticByteField,
2191
    checked_jni_SetStaticCharField,
2192
    checked_jni_SetStaticShortField,
2193
    checked_jni_SetStaticIntField,
2194
    checked_jni_SetStaticLongField,
2195
    checked_jni_SetStaticFloatField,
2196
    checked_jni_SetStaticDoubleField,
2197

2198
    checked_jni_NewString,
2199
    checked_jni_GetStringLength,
2200
    checked_jni_GetStringChars,
2201
    checked_jni_ReleaseStringChars,
2202

2203
    checked_jni_NewStringUTF,
2204
    checked_jni_GetStringUTFLength,
2205
    checked_jni_GetStringUTFChars,
2206
    checked_jni_ReleaseStringUTFChars,
2207

2208
    checked_jni_GetArrayLength,
2209

2210
    checked_jni_NewObjectArray,
2211
    checked_jni_GetObjectArrayElement,
2212
    checked_jni_SetObjectArrayElement,
2213

2214
    checked_jni_NewBooleanArray,
2215
    checked_jni_NewByteArray,
2216
    checked_jni_NewCharArray,
2217
    checked_jni_NewShortArray,
2218
    checked_jni_NewIntArray,
2219
    checked_jni_NewLongArray,
2220
    checked_jni_NewFloatArray,
2221
    checked_jni_NewDoubleArray,
2222

2223
    checked_jni_GetBooleanArrayElements,
2224
    checked_jni_GetByteArrayElements,
2225
    checked_jni_GetCharArrayElements,
2226
    checked_jni_GetShortArrayElements,
2227
    checked_jni_GetIntArrayElements,
2228
    checked_jni_GetLongArrayElements,
2229
    checked_jni_GetFloatArrayElements,
2230
    checked_jni_GetDoubleArrayElements,
2231

2232
    checked_jni_ReleaseBooleanArrayElements,
2233
    checked_jni_ReleaseByteArrayElements,
2234
    checked_jni_ReleaseCharArrayElements,
2235
    checked_jni_ReleaseShortArrayElements,
2236
    checked_jni_ReleaseIntArrayElements,
2237
    checked_jni_ReleaseLongArrayElements,
2238
    checked_jni_ReleaseFloatArrayElements,
2239
    checked_jni_ReleaseDoubleArrayElements,
2240

2241
    checked_jni_GetBooleanArrayRegion,
2242
    checked_jni_GetByteArrayRegion,
2243
    checked_jni_GetCharArrayRegion,
2244
    checked_jni_GetShortArrayRegion,
2245
    checked_jni_GetIntArrayRegion,
2246
    checked_jni_GetLongArrayRegion,
2247
    checked_jni_GetFloatArrayRegion,
2248
    checked_jni_GetDoubleArrayRegion,
2249

2250
    checked_jni_SetBooleanArrayRegion,
2251
    checked_jni_SetByteArrayRegion,
2252
    checked_jni_SetCharArrayRegion,
2253
    checked_jni_SetShortArrayRegion,
2254
    checked_jni_SetIntArrayRegion,
2255
    checked_jni_SetLongArrayRegion,
2256
    checked_jni_SetFloatArrayRegion,
2257
    checked_jni_SetDoubleArrayRegion,
2258

2259
    checked_jni_RegisterNatives,
2260
    checked_jni_UnregisterNatives,
2261

2262
    checked_jni_MonitorEnter,
2263
    checked_jni_MonitorExit,
2264

2265
    checked_jni_GetJavaVM,
2266

2267
    checked_jni_GetStringRegion,
2268
    checked_jni_GetStringUTFRegion,
2269

2270
    checked_jni_GetPrimitiveArrayCritical,
2271
    checked_jni_ReleasePrimitiveArrayCritical,
2272

2273
    checked_jni_GetStringCritical,
2274
    checked_jni_ReleaseStringCritical,
2275

2276
    checked_jni_NewWeakGlobalRef,
2277
    checked_jni_DeleteWeakGlobalRef,
2278

2279
    checked_jni_ExceptionCheck,
2280

2281
    checked_jni_NewDirectByteBuffer,
2282
    checked_jni_GetDirectBufferAddress,
2283
    checked_jni_GetDirectBufferCapacity,
2284

2285
    // New 1.6 Features
2286

2287
    checked_jni_GetObjectRefType
2288
};
2289

2290

2291
// Returns the function structure
2292
struct JNINativeInterface_* jni_functions_check() {
2293

2294
  unchecked_jni_NativeInterface = jni_functions_nocheck();
2295

2296
  // make sure the last pointer in the checked table is not null, indicating
2297
  // an addition to the JNINativeInterface_ structure without initializing
2298
  // it in the checked table.
2299
  debug_only(int *lastPtr = (int *)((char *)&checked_jni_NativeInterface + \
2300
             sizeof(*unchecked_jni_NativeInterface) - sizeof(char *));)
2301
  assert(*lastPtr != 0,
2302
         "Mismatched JNINativeInterface tables, check for new entries");
2303

2304
  // with -verbose:jni this message will print
2305
  if (PrintJNIResolving) {
2306
    tty->print_cr("Checked JNI functions are being used to " \
2307
                  "validate JNI usage");
2308
  }
2309

2310
  return &checked_jni_NativeInterface;
2311
}
2312

2313
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