CoCalc -- jniCheck.cpp

GitHub Repository: PojavLauncherTeam/openjdk-multiarch-jdk8u
Path: blob/aarch64-shenandoah-jdk8u272-b10/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_aarch32
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# include "jniTypes_aarch32.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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// 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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72

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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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 */
90

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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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 */
97

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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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    MACOS_AARCH64_ONLY(ThreadWXEnable __wx(WXWrite, thr));         \
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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) {
162
  IN_VM(
163
    ReportJNIFatalError(thr, msg);
164
  )
165
}
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static void NativeReportJNIWarning(JavaThread* thr, const char *msg) {
168
  IN_VM(
169
    ReportJNIWarning(thr, msg);
170
  )
171
}
172

173

174

175

176
/*
177
 * SUPPORT FUNCTIONS
178
 */
179

180
/**
181
 * Check whether or not a programmer has actually checked for exceptions. According
182
 * to the JNI Specification ("jni/spec/design.html#java_exceptions"):
183
 *
184
 * 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:
186
 *
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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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 *
194
 * In all other cases, a non-error return value guarantees that no exceptions have been thrown.
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 *
196
 * Programmers often defend against ArrayIndexOutOfBoundsException, so warning
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 * for these functions would be pedantic.
198
 */
199
static inline void
200
check_pending_exception(JavaThread* thr) {
201
  if (thr->has_pending_exception()) {
202
    NativeReportJNIWarning(thr, "JNI call made with exception pending");
203
  }
204
  if (thr->is_pending_jni_exception_check()) {
205
    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();
209
    )
210
    thr->clear_pending_jni_exception_check(); // Just complain once
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  }
212
}
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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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 */
217
static inline void
218
add_planned_handle_capacity(JNIHandleBlock* handles, size_t capacity) {
219
  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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}
223

224

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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);
229
}
230

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static inline void
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functionEnterCriticalExceptionAllowed(JavaThread* thr)
233
{
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}
235

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static inline void
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functionEnter(JavaThread* thr)
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{
239
  if (thr->in_critical()) {
240
    tty->print_cr("%s", warn_other_function_in_critical);
241
  }
242
  check_pending_exception(thr);
243
}
244

245
static inline void
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functionEnterExceptionAllowed(JavaThread* thr)
247
{
248
  if (thr->in_critical()) {
249
    tty->print_cr("%s", warn_other_function_in_critical);
250
  }
251
}
252

253
static inline void
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functionExit(JavaThread* thr)
255
{
256
  JNIHandleBlock* handles = thr->active_handles();
257
  size_t planned_capacity = handles->get_planned_capacity();
258
  size_t live_handles = handles->get_number_of_live_handles();
259
  if (live_handles > planned_capacity) {
260
    IN_VM(
261
      tty->print_cr("WARNING: JNI local refs: %zu, exceeds capacity: %zu",
262
          live_handles, planned_capacity);
263
      thr->print_stack();
264
    )
265
    // Complain just the once, reset to current + warn threshold
266
    add_planned_handle_capacity(handles, 0);
267
  }
268
}
269

270
static inline void
271
checkStaticFieldID(JavaThread* thr, jfieldID fid, jclass cls, int ftype)
272
{
273
  fieldDescriptor fd;
274

275
  /* make sure it is a static field */
276
  if (!jfieldIDWorkaround::is_static_jfieldID(fid))
277
    ReportJNIFatalError(thr, fatal_should_be_static);
278

279
  /* validate the class being passed */
280
  ASSERT_OOPS_ALLOWED;
281
  Klass* k_oop = jniCheck::validate_class(thr, cls, false);
282

283
  /* check for proper subclass hierarchy */
284
  JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fid);
285
  Klass* f_oop = id->holder();
286
  if (!InstanceKlass::cast(k_oop)->is_subtype_of(f_oop))
287
    ReportJNIFatalError(thr, fatal_wrong_static_field);
288

289
  /* check for proper field type */
290
  if (!id->find_local_field(&fd))
291
    ReportJNIFatalError(thr, fatal_static_field_not_found);
292
  if ((fd.field_type() != ftype) &&
293
      !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) {
294
    ReportJNIFatalError(thr, fatal_static_field_mismatch);
295
  }
296
}
297

298
static inline void
299
checkInstanceFieldID(JavaThread* thr, jfieldID fid, jobject obj, int ftype)
300
{
301
  fieldDescriptor fd;
302

303
  /* make sure it is an instance field */
304
  if (jfieldIDWorkaround::is_static_jfieldID(fid))
305
    ReportJNIFatalError(thr, fatal_should_be_nonstatic);
306

307
  /* validate the object being passed and then get its class */
308
  ASSERT_OOPS_ALLOWED;
309
  oop oopObj = jniCheck::validate_object(thr, obj);
310
  if (!oopObj) {
311
    ReportJNIFatalError(thr, fatal_null_object);
312
  }
313
  Klass* k_oop = oopObj->klass();
314

315
  if (!jfieldIDWorkaround::is_valid_jfieldID(k_oop, fid)) {
316
    ReportJNIFatalError(thr, fatal_wrong_field);
317
  }
318

319
  /* make sure the field exists */
320
  int offset = jfieldIDWorkaround::from_instance_jfieldID(k_oop, fid);
321
  if (!InstanceKlass::cast(k_oop)->contains_field_offset(offset))
322
    ReportJNIFatalError(thr, fatal_wrong_field);
323

324
  /* check for proper field type */
325
  if (!InstanceKlass::cast(k_oop)->find_field_from_offset(offset,
326
                                                              false, &fd))
327
    ReportJNIFatalError(thr, fatal_instance_field_not_found);
328

329
  if ((fd.field_type() != ftype) &&
330
      !(fd.field_type() == T_ARRAY && ftype == T_OBJECT)) {
331
    ReportJNIFatalError(thr, fatal_instance_field_mismatch);
332
  }
333
}
334

335
static inline void
336
checkString(JavaThread* thr, jstring js)
337
{
338
  ASSERT_OOPS_ALLOWED;
339
  oop s = jniCheck::validate_object(thr, js);
340
  if (!s || !java_lang_String::is_instance(s))
341
    ReportJNIFatalError(thr, fatal_non_string);
342
}
343

344
static inline arrayOop
345
check_is_array(JavaThread* thr, jarray jArray)
346
{
347
  ASSERT_OOPS_ALLOWED;
348
  arrayOop aOop;
349

350
  aOop = (arrayOop)jniCheck::validate_object(thr, jArray);
351
  if (aOop == NULL || !aOop->is_array()) {
352
    ReportJNIFatalError(thr, fatal_non_array);
353
  }
354
  return aOop;
355
}
356

357
static inline arrayOop
358
check_is_primitive_array(JavaThread* thr, jarray jArray) {
359
  arrayOop aOop = check_is_array(thr, jArray);
360

361
  if (!aOop->is_typeArray()) {
362
     ReportJNIFatalError(thr, fatal_prim_type_array_expected);
363
  }
364
  return aOop;
365
}
366

367
static inline void
368
check_primitive_array_type(JavaThread* thr, jarray jArray, BasicType elementType)
369
{
370
  BasicType array_type;
371
  arrayOop aOop;
372

373
  aOop = check_is_primitive_array(thr, jArray);
374
  array_type = TypeArrayKlass::cast(aOop->klass())->element_type();
375
  if (array_type != elementType) {
376
    ReportJNIFatalError(thr, fatal_element_type_mismatch);
377
  }
378
}
379

380
static inline void
381
check_is_obj_array(JavaThread* thr, jarray jArray) {
382
  arrayOop aOop = check_is_array(thr, jArray);
383
  if (!aOop->is_objArray()) {
384
    ReportJNIFatalError(thr, fatal_object_array_expected);
385
  }
386
}
387

388
/*
389
 * Copy and wrap array elements for bounds checking.
390
 * Remember the original elements (GuardedMemory::get_tag())
391
 */
392
static void* check_jni_wrap_copy_array(JavaThread* thr, jarray array,
393
    void* orig_elements) {
394
  void* result;
395
  IN_VM(
396
    oop a = JNIHandles::resolve_non_null(array);
397
    size_t len = arrayOop(a)->length() <<
398
        TypeArrayKlass::cast(a->klass())->log2_element_size();
399
    result = GuardedMemory::wrap_copy(orig_elements, len, orig_elements);
400
  )
401
  return result;
402
}
403

404
static void* check_wrapped_array(JavaThread* thr, const char* fn_name,
405
    void* obj, void* carray, size_t* rsz) {
406
  if (carray == NULL) {
407
    tty->print_cr("%s: elements vector NULL" PTR_FORMAT, fn_name, p2i(obj));
408
    NativeReportJNIFatalError(thr, "Elements vector NULL");
409
  }
410
  GuardedMemory guarded(carray);
411
  void* orig_result = guarded.get_tag();
412
  if (!guarded.verify_guards()) {
413
    tty->print_cr("ReleasePrimitiveArrayCritical: release array failed bounds "
414
        "check, incorrect pointer returned ? array: " PTR_FORMAT " carray: "
415
        PTR_FORMAT, p2i(obj), p2i(carray));
416
    guarded.print_on(tty);
417
    NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: "
418
        "failed bounds check");
419
  }
420
  if (orig_result == NULL) {
421
    tty->print_cr("ReleasePrimitiveArrayCritical: unrecognized elements. array: "
422
        PTR_FORMAT " carray: " PTR_FORMAT, p2i(obj), p2i(carray));
423
    guarded.print_on(tty);
424
    NativeReportJNIFatalError(thr, "ReleasePrimitiveArrayCritical: "
425
        "unrecognized elements");
426
  }
427
  if (rsz != NULL) {
428
    *rsz = guarded.get_user_size();
429
  }
430
  return orig_result;
431
}
432

433
static void* check_wrapped_array_release(JavaThread* thr, const char* fn_name,
434
    void* obj, void* carray, jint mode) {
435
  size_t sz;
436
  void* orig_result = check_wrapped_array(thr, fn_name, obj, carray, &sz);
437
  switch (mode) {
438
  // As we never make copies, mode 0 and JNI_COMMIT are the same.
439
  case 0:
440
  case JNI_COMMIT:
441
    memcpy(orig_result, carray, sz);
442
    break;
443
  case JNI_ABORT:
444
    break;
445
  default:
446
    tty->print_cr("%s: Unrecognized mode %i releasing array "
447
        PTR_FORMAT " elements " PTR_FORMAT, fn_name, mode, p2i(obj), p2i(carray));
448
    NativeReportJNIFatalError(thr, "Unrecognized array release mode");
449
  }
450
  // We always need to release the copy we made with GuardedMemory
451
  GuardedMemory::free_copy(carray);
452
  return orig_result;
453
}
454

455
oop jniCheck::validate_handle(JavaThread* thr, jobject obj) {
456
  if (JNIHandles::is_frame_handle(thr, obj) ||
457
      JNIHandles::is_local_handle(thr, obj) ||
458
      JNIHandles::is_global_handle(obj) ||
459
      JNIHandles::is_weak_global_handle(obj)) {
460
    ASSERT_OOPS_ALLOWED;
461
    return JNIHandles::resolve_external_guard(obj);
462
  }
463
  ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
464
  return NULL;
465
}
466

467

468
Method* jniCheck::validate_jmethod_id(JavaThread* thr, jmethodID method_id) {
469
  ASSERT_OOPS_ALLOWED;
470
  // Do the jmethodID check
471
  Method* moop = Method::checked_resolve_jmethod_id(method_id);
472
  if (moop == NULL) {
473
    ReportJNIFatalError(thr, fatal_wrong_class_or_method);
474
  }
475
  return moop;
476
}
477

478

479
oop jniCheck::validate_object(JavaThread* thr, jobject obj) {
480
    if (!obj)
481
        return NULL;
482
    ASSERT_OOPS_ALLOWED;
483
    oop oopObj = jniCheck::validate_handle(thr, obj);
484
    if (!oopObj) {
485
      ReportJNIFatalError(thr, fatal_bad_ref_to_jni);
486
    }
487
    return oopObj;
488
}
489

490
// Warn if a class descriptor is in decorated form; class descriptors
491
// passed to JNI findClass should not be decorated unless they are
492
// array descriptors.
493
void jniCheck::validate_class_descriptor(JavaThread* thr, const char* name) {
494
  if (name == NULL) return;  // implementation accepts NULL so just return
495

496
  size_t len = strlen(name);
497

498
  if (len >= 2 &&
499
      name[0] == JVM_SIGNATURE_CLASS &&            // 'L'
500
      name[len-1] == JVM_SIGNATURE_ENDCLASS ) {    // ';'
501
    char msg[JVM_MAXPATHLEN];
502
    jio_snprintf(msg, JVM_MAXPATHLEN, warn_bad_class_descriptor, name);
503
    ReportJNIWarning(thr, msg);
504
  }
505
}
506

507
Klass* jniCheck::validate_class(JavaThread* thr, jclass clazz, bool allow_primitive) {
508
  ASSERT_OOPS_ALLOWED;
509
  oop mirror = jniCheck::validate_handle(thr, clazz);
510
  if (!mirror) {
511
    ReportJNIFatalError(thr, fatal_received_null_class);
512
  }
513

514
  if (mirror->klass() != SystemDictionary::Class_klass()) {
515
    ReportJNIFatalError(thr, fatal_class_not_a_class);
516
  }
517

518
  Klass* k = java_lang_Class::as_Klass(mirror);
519
  // Make allowances for primitive classes ...
520
  if (!(k != NULL || allow_primitive && java_lang_Class::is_primitive(mirror))) {
521
    ReportJNIFatalError(thr, fatal_class_not_a_class);
522
  }
523
  return k;
524
}
525

526
void jniCheck::validate_throwable_klass(JavaThread* thr, Klass* klass) {
527
  ASSERT_OOPS_ALLOWED;
528
  assert(klass != NULL, "klass argument must have a value");
529

530
  if (!klass->oop_is_instance() ||
531
      !InstanceKlass::cast(klass)->is_subclass_of(SystemDictionary::Throwable_klass())) {
532
    ReportJNIFatalError(thr, fatal_class_not_a_throwable_class);
533
  }
534
}
535

536
void jniCheck::validate_call_object(JavaThread* thr, jobject obj, jmethodID method_id) {
537
  /* validate the object being passed */
538
  ASSERT_OOPS_ALLOWED;
539
  jniCheck::validate_jmethod_id(thr, method_id);
540
  jniCheck::validate_object(thr, obj);
541
}
542

543
void jniCheck::validate_call_class(JavaThread* thr, jclass clazz, jmethodID method_id) {
544
  /* validate the class being passed */
545
  ASSERT_OOPS_ALLOWED;
546
  jniCheck::validate_jmethod_id(thr, method_id);
547
  jniCheck::validate_class(thr, clazz, false);
548
}
549

550

551
/*
552
 * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE
553
 */
554

555
JNI_ENTRY_CHECKED(jclass,
556
  checked_jni_DefineClass(JNIEnv *env,
557
                          const char *name,
558
                          jobject loader,
559
                          const jbyte *buf,
560
                          jsize len))
561
    functionEnter(thr);
562
    IN_VM(
563
      jniCheck::validate_object(thr, loader);
564
    )
565
    jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len);
566
    functionExit(thr);
567
    return result;
568
JNI_END
569

570
JNI_ENTRY_CHECKED(jclass,
571
  checked_jni_FindClass(JNIEnv *env,
572
                        const char *name))
573
    functionEnter(thr);
574
    IN_VM(
575
      jniCheck::validate_class_descriptor(thr, name);
576
    )
577
    jclass result = UNCHECKED()->FindClass(env, name);
578
    functionExit(thr);
579
    return result;
580
JNI_END
581

582
JNI_ENTRY_CHECKED(jmethodID,
583
  checked_jni_FromReflectedMethod(JNIEnv *env,
584
                                  jobject method))
585
    functionEnter(thr);
586
    IN_VM(
587
      jniCheck::validate_object(thr, method);
588
    )
589
    jmethodID result = UNCHECKED()->FromReflectedMethod(env, method);
590
    functionExit(thr);
591
    return result;
592
JNI_END
593

594
JNI_ENTRY_CHECKED(jfieldID,
595
  checked_jni_FromReflectedField(JNIEnv *env,
596
                                 jobject field))
597
    functionEnter(thr);
598
    IN_VM(
599
      jniCheck::validate_object(thr, field);
600
    )
601
    jfieldID result = UNCHECKED()->FromReflectedField(env, field);
602
    functionExit(thr);
603
    return result;
604
JNI_END
605

606
JNI_ENTRY_CHECKED(jobject,
607
  checked_jni_ToReflectedMethod(JNIEnv *env,
608
                                jclass cls,
609
                                jmethodID methodID,
610
                                jboolean isStatic))
611
    functionEnter(thr);
612
    IN_VM(
613
      jniCheck::validate_class(thr, cls, false);
614
      jniCheck::validate_jmethod_id(thr, methodID);
615
    )
616
    jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID,
617
                                                    isStatic);
618
    functionExit(thr);
619
    return result;
620
JNI_END
621

622
JNI_ENTRY_CHECKED(jclass,
623
  checked_jni_GetSuperclass(JNIEnv *env,
624
                            jclass sub))
625
    functionEnter(thr);
626
    IN_VM(
627
      jniCheck::validate_class(thr, sub, true);
628
    )
629
    jclass result = UNCHECKED()->GetSuperclass(env, sub);
630
    functionExit(thr);
631
    return result;
632
JNI_END
633

634
JNI_ENTRY_CHECKED(jboolean,
635
  checked_jni_IsAssignableFrom(JNIEnv *env,
636
                               jclass sub,
637
                               jclass sup))
638
    functionEnter(thr);
639
    IN_VM(
640
      jniCheck::validate_class(thr, sub, true);
641
      jniCheck::validate_class(thr, sup, true);
642
    )
643
    jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup);
644
    functionExit(thr);
645
    return result;
646
JNI_END
647

648
JNI_ENTRY_CHECKED(jobject,
649
  checked_jni_ToReflectedField(JNIEnv *env,
650
                               jclass cls,
651
                               jfieldID fieldID,
652
                               jboolean isStatic))
653
    functionEnter(thr);
654
    IN_VM(
655
      jniCheck::validate_class(thr, cls, false);
656
    )
657
    jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID,
658
                                                   isStatic);
659
    functionExit(thr);
660
    return result;
661
JNI_END
662

663
JNI_ENTRY_CHECKED(jint,
664
  checked_jni_Throw(JNIEnv *env,
665
                    jthrowable obj))
666
    functionEnter(thr);
667
    IN_VM(
668
      oop oopObj = jniCheck::validate_object(thr, obj);
669
      if (oopObj == NULL) {
670
        // Unchecked Throw tolerates a NULL obj, so just warn
671
        ReportJNIWarning(thr, "JNI Throw called with NULL throwable");
672
      } else {
673
        jniCheck::validate_throwable_klass(thr, oopObj->klass());
674
      }
675
    )
676
    jint result = UNCHECKED()->Throw(env, obj);
677
    functionExit(thr);
678
    return result;
679
JNI_END
680

681
JNI_ENTRY_CHECKED(jint,
682
  checked_jni_ThrowNew(JNIEnv *env,
683
                       jclass clazz,
684
                       const char *msg))
685
    functionEnter(thr);
686
    IN_VM(
687
      Klass* k = jniCheck::validate_class(thr, clazz, false);
688
      assert(k != NULL, "validate_class shouldn't return NULL Klass*");
689
      jniCheck::validate_throwable_klass(thr, k);
690
    )
691
    jint result = UNCHECKED()->ThrowNew(env, clazz, msg);
692
    functionExit(thr);
693
    return result;
694
JNI_END
695

696
JNI_ENTRY_CHECKED(jthrowable,
697
  checked_jni_ExceptionOccurred(JNIEnv *env))
698
    thr->clear_pending_jni_exception_check();
699
    functionEnterExceptionAllowed(thr);
700
    jthrowable result = UNCHECKED()->ExceptionOccurred(env);
701
    functionExit(thr);
702
    return result;
703
JNI_END
704

705
JNI_ENTRY_CHECKED(void,
706
  checked_jni_ExceptionDescribe(JNIEnv *env))
707
    functionEnterExceptionAllowed(thr);
708
    UNCHECKED()->ExceptionDescribe(env);
709
    functionExit(thr);
710
JNI_END
711

712
JNI_ENTRY_CHECKED(void,
713
  checked_jni_ExceptionClear(JNIEnv *env))
714
    thr->clear_pending_jni_exception_check();
715
    functionEnterExceptionAllowed(thr);
716
    UNCHECKED()->ExceptionClear(env);
717
    functionExit(thr);
718
JNI_END
719

720
JNI_ENTRY_CHECKED(void,
721
  checked_jni_FatalError(JNIEnv *env,
722
                         const char *msg))
723
    thr->clear_pending_jni_exception_check();
724
    functionEnter(thr);
725
    UNCHECKED()->FatalError(env, msg);
726
    functionExit(thr);
727
JNI_END
728

729
JNI_ENTRY_CHECKED(jint,
730
  checked_jni_PushLocalFrame(JNIEnv *env,
731
                             jint capacity))
732
    functionEnterExceptionAllowed(thr);
733
    if (capacity < 0)
734
      NativeReportJNIFatalError(thr, "negative capacity");
735
    jint result = UNCHECKED()->PushLocalFrame(env, capacity);
736
    if (result == JNI_OK) {
737
      add_planned_handle_capacity(thr->active_handles(), capacity);
738
    }
739
    functionExit(thr);
740
    return result;
741
JNI_END
742

743
JNI_ENTRY_CHECKED(jobject,
744
  checked_jni_PopLocalFrame(JNIEnv *env,
745
                            jobject result))
746
    functionEnterExceptionAllowed(thr);
747
    jobject res = UNCHECKED()->PopLocalFrame(env, result);
748
    functionExit(thr);
749
    return res;
750
JNI_END
751

752
JNI_ENTRY_CHECKED(jobject,
753
  checked_jni_NewGlobalRef(JNIEnv *env,
754
                           jobject lobj))
755
    functionEnter(thr);
756
    IN_VM(
757
      if (lobj != NULL) {
758
        jniCheck::validate_handle(thr, lobj);
759
      }
760
    )
761
    jobject result = UNCHECKED()->NewGlobalRef(env,lobj);
762
    functionExit(thr);
763
    return result;
764
JNI_END
765

766
JNI_ENTRY_CHECKED(void,
767
  checked_jni_DeleteGlobalRef(JNIEnv *env,
768
                              jobject gref))
769
    functionEnterExceptionAllowed(thr);
770
    IN_VM(
771
      jniCheck::validate_object(thr, gref);
772
      if (gref && !JNIHandles::is_global_handle(gref)) {
773
        ReportJNIFatalError(thr,
774
            "Invalid global JNI handle passed to DeleteGlobalRef");
775
      }
776
    )
777
    UNCHECKED()->DeleteGlobalRef(env,gref);
778
    functionExit(thr);
779
JNI_END
780

781
JNI_ENTRY_CHECKED(void,
782
  checked_jni_DeleteLocalRef(JNIEnv *env,
783
                             jobject obj))
784
    functionEnterExceptionAllowed(thr);
785
    IN_VM(
786
      jniCheck::validate_object(thr, obj);
787
      if (obj && !(JNIHandles::is_local_handle(thr, obj) ||
788
                   JNIHandles::is_frame_handle(thr, obj)))
789
        ReportJNIFatalError(thr,
790
            "Invalid local JNI handle passed to DeleteLocalRef");
791
    )
792
    UNCHECKED()->DeleteLocalRef(env, obj);
793
    functionExit(thr);
794
JNI_END
795

796
JNI_ENTRY_CHECKED(jboolean,
797
  checked_jni_IsSameObject(JNIEnv *env,
798
                           jobject obj1,
799
                           jobject obj2))
800
    functionEnterExceptionAllowed(thr);
801
    IN_VM(
802
      /* This JNI function can be used to compare weak global references
803
       * to NULL objects. If the handles are valid, but contain NULL,
804
       * then don't attempt to validate the object.
805
       */
806
      if (obj1 != NULL && jniCheck::validate_handle(thr, obj1) != NULL) {
807
        jniCheck::validate_object(thr, obj1);
808
      }
809
      if (obj2 != NULL && jniCheck::validate_handle(thr, obj2) != NULL) {
810
        jniCheck::validate_object(thr, obj2);
811
      }
812
    )
813
    jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2);
814
    functionExit(thr);
815
    return result;
816
JNI_END
817

818
JNI_ENTRY_CHECKED(jobject,
819
  checked_jni_NewLocalRef(JNIEnv *env,
820
                          jobject ref))
821
    functionEnter(thr);
822
    IN_VM(
823
      if (ref != NULL) {
824
        jniCheck::validate_handle(thr, ref);
825
      }
826
    )
827
    jobject result = UNCHECKED()->NewLocalRef(env, ref);
828
    functionExit(thr);
829
    return result;
830
JNI_END
831

832
JNI_ENTRY_CHECKED(jint,
833
  checked_jni_EnsureLocalCapacity(JNIEnv *env,
834
                                  jint capacity))
835
    functionEnter(thr);
836
    if (capacity < 0) {
837
      NativeReportJNIFatalError(thr, "negative capacity");
838
    }
839
    jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity);
840
    if (result == JNI_OK) {
841
      add_planned_handle_capacity(thr->active_handles(), capacity);
842
    }
843
    functionExit(thr);
844
    return result;
845
JNI_END
846

847
JNI_ENTRY_CHECKED(jobject,
848
  checked_jni_AllocObject(JNIEnv *env,
849
                          jclass clazz))
850
    functionEnter(thr);
851
    IN_VM(
852
      jniCheck::validate_class(thr, clazz, false);
853
    )
854
    jobject result = UNCHECKED()->AllocObject(env,clazz);
855
    functionExit(thr);
856
    return result;
857
JNI_END
858

859
JNI_ENTRY_CHECKED(jobject,
860
  checked_jni_NewObject(JNIEnv *env,
861
                        jclass clazz,
862
                        jmethodID methodID,
863
                        ...))
864
    functionEnter(thr);
865
    va_list args;
866
    IN_VM(
867
      jniCheck::validate_class(thr, clazz, false);
868
      jniCheck::validate_jmethod_id(thr, methodID);
869
    )
870
    va_start(args, methodID);
871
    jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
872
    va_end(args);
873
    functionExit(thr);
874
    return result;
875
JNI_END
876

877
JNI_ENTRY_CHECKED(jobject,
878
  checked_jni_NewObjectV(JNIEnv *env,
879
                         jclass clazz,
880
                         jmethodID methodID,
881
                         va_list args))
882
    functionEnter(thr);
883
    IN_VM(
884
      jniCheck::validate_class(thr, clazz, false);
885
      jniCheck::validate_jmethod_id(thr, methodID);
886
    )
887
    jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
888
    functionExit(thr);
889
    return result;
890
JNI_END
891

892
JNI_ENTRY_CHECKED(jobject,
893
  checked_jni_NewObjectA(JNIEnv *env,
894
                         jclass clazz,
895
                         jmethodID methodID,
896
                         const jvalue *args))
897
    functionEnter(thr);
898
    IN_VM(
899
      jniCheck::validate_class(thr, clazz, false);
900
      jniCheck::validate_jmethod_id(thr, methodID);
901
    )
902
    jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args);
903
    functionExit(thr);
904
    return result;
905
JNI_END
906

907
JNI_ENTRY_CHECKED(jclass,
908
  checked_jni_GetObjectClass(JNIEnv *env,
909
                             jobject obj))
910
    functionEnter(thr);
911
    IN_VM(
912
      jniCheck::validate_object(thr, obj);
913
    )
914
    jclass result = UNCHECKED()->GetObjectClass(env,obj);
915
    functionExit(thr);
916
    return result;
917
JNI_END
918

919
JNI_ENTRY_CHECKED(jboolean,
920
  checked_jni_IsInstanceOf(JNIEnv *env,
921
                           jobject obj,
922
                           jclass clazz))
923
    functionEnter(thr);
924
    IN_VM(
925
      jniCheck::validate_object(thr, obj);
926
      jniCheck::validate_class(thr, clazz, true);
927
    )
928
    jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz);
929
    functionExit(thr);
930
    return result;
931
JNI_END
932

933
JNI_ENTRY_CHECKED(jmethodID,
934
  checked_jni_GetMethodID(JNIEnv *env,
935
                          jclass clazz,
936
                          const char *name,
937
                          const char *sig))
938
    functionEnter(thr);
939
    IN_VM(
940
      jniCheck::validate_class(thr, clazz, false);
941
    )
942
    jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig);
943
    functionExit(thr);
944
    return result;
945
JNI_END
946

947
#define WRAPPER_CallMethod(ResultType, Result) \
948
JNI_ENTRY_CHECKED(ResultType,  \
949
  checked_jni_Call##Result##Method(JNIEnv *env, \
950
                                   jobject obj, \
951
                                   jmethodID methodID, \
952
                                   ...)) \
953
    functionEnter(thr); \
954
    va_list args; \
955
    IN_VM( \
956
      jniCheck::validate_call_object(thr, obj, methodID); \
957
    ) \
958
    va_start(args,methodID); \
959
    ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \
960
                                                          args); \
961
    va_end(args); \
962
    thr->set_pending_jni_exception_check("Call"#Result"Method"); \
963
    functionExit(thr); \
964
    return result; \
965
JNI_END \
966
\
967
JNI_ENTRY_CHECKED(ResultType,  \
968
  checked_jni_Call##Result##MethodV(JNIEnv *env, \
969
                                    jobject obj, \
970
                                    jmethodID methodID, \
971
                                    va_list args)) \
972
    functionEnter(thr); \
973
    IN_VM(\
974
      jniCheck::validate_call_object(thr, obj, methodID); \
975
    ) \
976
    ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\
977
                                                           args); \
978
    thr->set_pending_jni_exception_check("Call"#Result"MethodV"); \
979
    functionExit(thr); \
980
    return result; \
981
JNI_END \
982
\
983
JNI_ENTRY_CHECKED(ResultType,  \
984
  checked_jni_Call##Result##MethodA(JNIEnv *env, \
985
                                    jobject obj, \
986
                                    jmethodID methodID, \
987
                                    const jvalue * args)) \
988
    functionEnter(thr); \
989
    IN_VM( \
990
      jniCheck::validate_call_object(thr, obj, methodID); \
991
    ) \
992
    ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\
993
                                                           args); \
994
    thr->set_pending_jni_exception_check("Call"#Result"MethodA"); \
995
    functionExit(thr); \
996
    return result; \
997
JNI_END
998

999
WRAPPER_CallMethod(jobject,Object)
1000
WRAPPER_CallMethod(jboolean,Boolean)
1001
WRAPPER_CallMethod(jbyte,Byte)
1002
WRAPPER_CallMethod(jshort,Short)
1003
WRAPPER_CallMethod(jchar,Char)
1004
WRAPPER_CallMethod(jint,Int)
1005
WRAPPER_CallMethod(jlong,Long)
1006
WRAPPER_CallMethod(jfloat,Float)
1007
WRAPPER_CallMethod(jdouble,Double)
1008

1009
JNI_ENTRY_CHECKED(void,
1010
  checked_jni_CallVoidMethod(JNIEnv *env, \
1011
                             jobject obj, \
1012
                             jmethodID methodID, \
1013
                             ...))
1014
    functionEnter(thr);
1015
    va_list args;
1016
    IN_VM(
1017
      jniCheck::validate_call_object(thr, obj, methodID);
1018
    )
1019
    va_start(args,methodID);
1020
    UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1021
    va_end(args);
1022
    thr->set_pending_jni_exception_check("CallVoidMethod");
1023
    functionExit(thr);
1024
JNI_END
1025

1026
JNI_ENTRY_CHECKED(void,
1027
  checked_jni_CallVoidMethodV(JNIEnv *env,
1028
                              jobject obj,
1029
                              jmethodID methodID,
1030
                              va_list args))
1031
    functionEnter(thr);
1032
    IN_VM(
1033
      jniCheck::validate_call_object(thr, obj, methodID);
1034
    )
1035
    UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1036
    thr->set_pending_jni_exception_check("CallVoidMethodV");
1037
    functionExit(thr);
1038
JNI_END
1039

1040
JNI_ENTRY_CHECKED(void,
1041
  checked_jni_CallVoidMethodA(JNIEnv *env,
1042
                              jobject obj,
1043
                              jmethodID methodID,
1044
                              const jvalue * args))
1045
    functionEnter(thr);
1046
    IN_VM(
1047
      jniCheck::validate_call_object(thr, obj, methodID);
1048
    )
1049
    UNCHECKED()->CallVoidMethodA(env,obj,methodID,args);
1050
    thr->set_pending_jni_exception_check("CallVoidMethodA");
1051
    functionExit(thr);
1052
JNI_END
1053

1054
#define WRAPPER_CallNonvirtualMethod(ResultType, Result) \
1055
JNI_ENTRY_CHECKED(ResultType,  \
1056
  checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \
1057
                                             jobject obj, \
1058
                                             jclass clazz, \
1059
                                             jmethodID methodID, \
1060
                                             ...)) \
1061
    functionEnter(thr); \
1062
    va_list args; \
1063
    IN_VM( \
1064
      jniCheck::validate_call_object(thr, obj, methodID); \
1065
      jniCheck::validate_call_class(thr, clazz, methodID); \
1066
    ) \
1067
    va_start(args,methodID); \
1068
    ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1069
                                                                     obj, \
1070
                                                                     clazz, \
1071
                                                                     methodID,\
1072
                                                                     args); \
1073
    va_end(args); \
1074
    thr->set_pending_jni_exception_check("CallNonvirtual"#Result"Method"); \
1075
    functionExit(thr); \
1076
    return result; \
1077
JNI_END \
1078
\
1079
JNI_ENTRY_CHECKED(ResultType,  \
1080
  checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \
1081
                                              jobject obj, \
1082
                                              jclass clazz, \
1083
                                              jmethodID methodID, \
1084
                                              va_list args)) \
1085
    functionEnter(thr); \
1086
    IN_VM( \
1087
      jniCheck::validate_call_object(thr, obj, methodID); \
1088
      jniCheck::validate_call_class(thr, clazz, methodID); \
1089
    ) \
1090
    ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1091
                                                                     obj, \
1092
                                                                     clazz, \
1093
                                                                     methodID,\
1094
                                                                     args); \
1095
    thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodV"); \
1096
    functionExit(thr); \
1097
    return result; \
1098
JNI_END \
1099
\
1100
JNI_ENTRY_CHECKED(ResultType,  \
1101
  checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \
1102
                                              jobject obj, \
1103
                                              jclass clazz, \
1104
                                              jmethodID methodID, \
1105
                                              const jvalue * args)) \
1106
    functionEnter(thr); \
1107
    IN_VM( \
1108
      jniCheck::validate_call_object(thr, obj, methodID); \
1109
      jniCheck::validate_call_class(thr, clazz, methodID); \
1110
    ) \
1111
    ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \
1112
                                                                     obj, \
1113
                                                                     clazz, \
1114
                                                                     methodID,\
1115
                                                                     args); \
1116
    thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodA"); \
1117
    functionExit(thr); \
1118
    return result; \
1119
JNI_END
1120

1121
WRAPPER_CallNonvirtualMethod(jobject,Object)
1122
WRAPPER_CallNonvirtualMethod(jboolean,Boolean)
1123
WRAPPER_CallNonvirtualMethod(jbyte,Byte)
1124
WRAPPER_CallNonvirtualMethod(jshort,Short)
1125
WRAPPER_CallNonvirtualMethod(jchar,Char)
1126
WRAPPER_CallNonvirtualMethod(jint,Int)
1127
WRAPPER_CallNonvirtualMethod(jlong,Long)
1128
WRAPPER_CallNonvirtualMethod(jfloat,Float)
1129
WRAPPER_CallNonvirtualMethod(jdouble,Double)
1130

1131
JNI_ENTRY_CHECKED(void,
1132
  checked_jni_CallNonvirtualVoidMethod(JNIEnv *env,
1133
                                       jobject obj,
1134
                                       jclass clazz,
1135
                                       jmethodID methodID,
1136
                                       ...))
1137
    functionEnter(thr);
1138
    va_list args;
1139
    IN_VM(
1140
      jniCheck::validate_call_object(thr, obj, methodID);
1141
      jniCheck::validate_call_class(thr, clazz, methodID);
1142
    )
1143
    va_start(args,methodID);
1144
    UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1145
    va_end(args);
1146
    thr->set_pending_jni_exception_check("CallNonvirtualVoidMethod");
1147
    functionExit(thr);
1148
JNI_END
1149

1150
JNI_ENTRY_CHECKED(void,
1151
  checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env,
1152
                                        jobject obj,
1153
                                        jclass clazz,
1154
                                        jmethodID methodID,
1155
                                        va_list args))
1156
    functionEnter(thr);
1157
    IN_VM(
1158
      jniCheck::validate_call_object(thr, obj, methodID);
1159
      jniCheck::validate_call_class(thr, clazz, methodID);
1160
    )
1161
    UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1162
    thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodV");
1163
    functionExit(thr);
1164
JNI_END
1165

1166
JNI_ENTRY_CHECKED(void,
1167
  checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env,
1168
                                        jobject obj,
1169
                                        jclass clazz,
1170
                                        jmethodID methodID,
1171
                                        const jvalue * args))
1172
    functionEnter(thr);
1173
    IN_VM(
1174
      jniCheck::validate_call_object(thr, obj, methodID);
1175
      jniCheck::validate_call_class(thr, clazz, methodID);
1176
    )
1177
    UNCHECKED()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args);
1178
    thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodA");
1179
    functionExit(thr);
1180
JNI_END
1181

1182
JNI_ENTRY_CHECKED(jfieldID,
1183
  checked_jni_GetFieldID(JNIEnv *env,
1184
                         jclass clazz,
1185
                         const char *name,
1186
                         const char *sig))
1187
    functionEnter(thr);
1188
    IN_VM(
1189
      jniCheck::validate_class(thr, clazz, false);
1190
    )
1191
    jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig);
1192
    functionExit(thr);
1193
    return result;
1194
JNI_END
1195

1196
#define WRAPPER_GetField(ReturnType,Result,FieldType) \
1197
JNI_ENTRY_CHECKED(ReturnType,  \
1198
  checked_jni_Get##Result##Field(JNIEnv *env, \
1199
                                 jobject obj, \
1200
                                 jfieldID fieldID)) \
1201
    functionEnter(thr); \
1202
    IN_VM( \
1203
      checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1204
    ) \
1205
    ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \
1206
    functionExit(thr); \
1207
    return result; \
1208
JNI_END
1209

1210
WRAPPER_GetField(jobject,  Object,  T_OBJECT)
1211
WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN)
1212
WRAPPER_GetField(jbyte,    Byte,    T_BYTE)
1213
WRAPPER_GetField(jshort,   Short,   T_SHORT)
1214
WRAPPER_GetField(jchar,    Char,    T_CHAR)
1215
WRAPPER_GetField(jint,     Int,     T_INT)
1216
WRAPPER_GetField(jlong,    Long,    T_LONG)
1217
WRAPPER_GetField(jfloat,   Float,   T_FLOAT)
1218
WRAPPER_GetField(jdouble,  Double,  T_DOUBLE)
1219

1220
#define WRAPPER_SetField(ValueType,Result,FieldType) \
1221
JNI_ENTRY_CHECKED(void,  \
1222
  checked_jni_Set##Result##Field(JNIEnv *env, \
1223
                                 jobject obj, \
1224
                                 jfieldID fieldID, \
1225
                                 ValueType val)) \
1226
    functionEnter(thr); \
1227
    IN_VM( \
1228
      checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1229
    ) \
1230
    UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \
1231
    functionExit(thr); \
1232
JNI_END
1233

1234
WRAPPER_SetField(jobject,  Object,  T_OBJECT)
1235
WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN)
1236
WRAPPER_SetField(jbyte,    Byte,    T_BYTE)
1237
WRAPPER_SetField(jshort,   Short,   T_SHORT)
1238
WRAPPER_SetField(jchar,    Char,    T_CHAR)
1239
WRAPPER_SetField(jint,     Int,     T_INT)
1240
WRAPPER_SetField(jlong,    Long,    T_LONG)
1241
WRAPPER_SetField(jfloat,   Float,   T_FLOAT)
1242
WRAPPER_SetField(jdouble,  Double,  T_DOUBLE)
1243

1244

1245
JNI_ENTRY_CHECKED(jmethodID,
1246
  checked_jni_GetStaticMethodID(JNIEnv *env,
1247
                                jclass clazz,
1248
                                const char *name,
1249
                                const char *sig))
1250
    functionEnter(thr);
1251
    IN_VM(
1252
      jniCheck::validate_class(thr, clazz, false);
1253
    )
1254
    jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig);
1255
    functionExit(thr);
1256
    return result;
1257
JNI_END
1258

1259
#define WRAPPER_CallStaticMethod(ReturnType,Result) \
1260
JNI_ENTRY_CHECKED(ReturnType,  \
1261
  checked_jni_CallStatic##Result##Method(JNIEnv *env, \
1262
                                         jclass clazz, \
1263
                                         jmethodID methodID, \
1264
                                         ...)) \
1265
    functionEnter(thr); \
1266
    va_list args; \
1267
    IN_VM( \
1268
      jniCheck::validate_jmethod_id(thr, methodID); \
1269
      jniCheck::validate_class(thr, clazz, false); \
1270
    ) \
1271
    va_start(args,methodID); \
1272
    ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1273
                                                                 clazz, \
1274
                                                                 methodID, \
1275
                                                                 args); \
1276
    va_end(args); \
1277
    thr->set_pending_jni_exception_check("CallStatic"#Result"Method"); \
1278
    functionExit(thr); \
1279
    return result; \
1280
JNI_END \
1281
\
1282
JNI_ENTRY_CHECKED(ReturnType,  \
1283
  checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \
1284
                                          jclass clazz, \
1285
                                          jmethodID methodID,\
1286
                                          va_list args)) \
1287
    functionEnter(thr); \
1288
    IN_VM( \
1289
      jniCheck::validate_jmethod_id(thr, methodID); \
1290
      jniCheck::validate_class(thr, clazz, false); \
1291
    ) \
1292
    ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1293
                                                                 clazz, \
1294
                                                                 methodID, \
1295
                                                                 args); \
1296
    thr->set_pending_jni_exception_check("CallStatic"#Result"MethodV"); \
1297
    functionExit(thr); \
1298
    return result; \
1299
JNI_END \
1300
\
1301
JNI_ENTRY_CHECKED(ReturnType,  \
1302
  checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \
1303
                                          jclass clazz, \
1304
                                          jmethodID methodID, \
1305
                                          const jvalue *args)) \
1306
    functionEnter(thr); \
1307
    IN_VM( \
1308
      jniCheck::validate_jmethod_id(thr, methodID); \
1309
      jniCheck::validate_class(thr, clazz, false); \
1310
    ) \
1311
    ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \
1312
                                                                 clazz, \
1313
                                                                 methodID, \
1314
                                                                 args); \
1315
    thr->set_pending_jni_exception_check("CallStatic"#Result"MethodA"); \
1316
    functionExit(thr); \
1317
    return result; \
1318
JNI_END
1319

1320
WRAPPER_CallStaticMethod(jobject,Object)
1321
WRAPPER_CallStaticMethod(jboolean,Boolean)
1322
WRAPPER_CallStaticMethod(jbyte,Byte)
1323
WRAPPER_CallStaticMethod(jshort,Short)
1324
WRAPPER_CallStaticMethod(jchar,Char)
1325
WRAPPER_CallStaticMethod(jint,Int)
1326
WRAPPER_CallStaticMethod(jlong,Long)
1327
WRAPPER_CallStaticMethod(jfloat,Float)
1328
WRAPPER_CallStaticMethod(jdouble,Double)
1329

1330
JNI_ENTRY_CHECKED(void,
1331
  checked_jni_CallStaticVoidMethod(JNIEnv *env,
1332
                                   jclass cls,
1333
                                   jmethodID methodID,
1334
                                   ...))
1335
    functionEnter(thr);
1336
    va_list args;
1337
    IN_VM(
1338
      jniCheck::validate_jmethod_id(thr, methodID);
1339
      jniCheck::validate_class(thr, cls, false);
1340
    )
1341
    va_start(args,methodID);
1342
    UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1343
    va_end(args);
1344
    thr->set_pending_jni_exception_check("CallStaticVoidMethod");
1345
    functionExit(thr);
1346
JNI_END
1347

1348
JNI_ENTRY_CHECKED(void,
1349
  checked_jni_CallStaticVoidMethodV(JNIEnv *env,
1350
                                    jclass cls,
1351
                                    jmethodID methodID,
1352
                                    va_list args))
1353
    functionEnter(thr);
1354
    IN_VM(
1355
      jniCheck::validate_jmethod_id(thr, methodID);
1356
      jniCheck::validate_class(thr, cls, false);
1357
    )
1358
    UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1359
    thr->set_pending_jni_exception_check("CallStaticVoidMethodV");
1360
    functionExit(thr);
1361
JNI_END
1362

1363
JNI_ENTRY_CHECKED(void,
1364
  checked_jni_CallStaticVoidMethodA(JNIEnv *env,
1365
                                    jclass cls,
1366
                                    jmethodID methodID,
1367
                                    const jvalue * args))
1368
    functionEnter(thr);
1369
    IN_VM(
1370
      jniCheck::validate_jmethod_id(thr, methodID);
1371
      jniCheck::validate_class(thr, cls, false);
1372
    )
1373
    UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args);
1374
    thr->set_pending_jni_exception_check("CallStaticVoidMethodA");
1375
    functionExit(thr);
1376
JNI_END
1377

1378
JNI_ENTRY_CHECKED(jfieldID,
1379
  checked_jni_GetStaticFieldID(JNIEnv *env,
1380
                               jclass clazz,
1381
                               const char *name,
1382
                               const char *sig))
1383
    functionEnter(thr);
1384
    IN_VM(
1385
      jniCheck::validate_class(thr, clazz, false);
1386
    )
1387
    jfieldID result = UNCHECKED()->GetStaticFieldID(env,clazz,name,sig);
1388
    functionExit(thr);
1389
    return result;
1390
JNI_END
1391

1392
#define WRAPPER_GetStaticField(ReturnType,Result,FieldType) \
1393
JNI_ENTRY_CHECKED(ReturnType,  \
1394
  checked_jni_GetStatic##Result##Field(JNIEnv *env, \
1395
                                       jclass clazz, \
1396
                                       jfieldID fieldID)) \
1397
    functionEnter(thr); \
1398
    IN_VM( \
1399
      jniCheck::validate_class(thr, clazz, false); \
1400
      checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1401
    ) \
1402
    ReturnType result = UNCHECKED()->GetStatic##Result##Field(env, \
1403
                                                              clazz, \
1404
                                                              fieldID); \
1405
    functionExit(thr); \
1406
    return result; \
1407
JNI_END
1408

1409
WRAPPER_GetStaticField(jobject,  Object,  T_OBJECT)
1410
WRAPPER_GetStaticField(jboolean, Boolean, T_BOOLEAN)
1411
WRAPPER_GetStaticField(jbyte,    Byte,    T_BYTE)
1412
WRAPPER_GetStaticField(jshort,   Short,   T_SHORT)
1413
WRAPPER_GetStaticField(jchar,    Char,    T_CHAR)
1414
WRAPPER_GetStaticField(jint,     Int,     T_INT)
1415
WRAPPER_GetStaticField(jlong,    Long,    T_LONG)
1416
WRAPPER_GetStaticField(jfloat,   Float,   T_FLOAT)
1417
WRAPPER_GetStaticField(jdouble,  Double,  T_DOUBLE)
1418

1419
#define WRAPPER_SetStaticField(ValueType,Result,FieldType) \
1420
JNI_ENTRY_CHECKED(void,  \
1421
  checked_jni_SetStatic##Result##Field(JNIEnv *env, \
1422
                                       jclass clazz, \
1423
                                       jfieldID fieldID, \
1424
                                       ValueType value)) \
1425
    functionEnter(thr); \
1426
    IN_VM( \
1427
      jniCheck::validate_class(thr, clazz, false); \
1428
      checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1429
    ) \
1430
    UNCHECKED()->SetStatic##Result##Field(env,clazz,fieldID,value); \
1431
    functionExit(thr); \
1432
JNI_END
1433

1434
WRAPPER_SetStaticField(jobject,  Object,  T_OBJECT)
1435
WRAPPER_SetStaticField(jboolean, Boolean, T_BOOLEAN)
1436
WRAPPER_SetStaticField(jbyte,    Byte,    T_BYTE)
1437
WRAPPER_SetStaticField(jshort,   Short,   T_SHORT)
1438
WRAPPER_SetStaticField(jchar,    Char,    T_CHAR)
1439
WRAPPER_SetStaticField(jint,     Int,     T_INT)
1440
WRAPPER_SetStaticField(jlong,    Long,    T_LONG)
1441
WRAPPER_SetStaticField(jfloat,   Float,   T_FLOAT)
1442
WRAPPER_SetStaticField(jdouble,  Double,  T_DOUBLE)
1443

1444

1445
JNI_ENTRY_CHECKED(jstring,
1446
  checked_jni_NewString(JNIEnv *env,
1447
                        const jchar *unicode,
1448
                        jsize len))
1449
    functionEnter(thr);
1450
    jstring result = UNCHECKED()->NewString(env,unicode,len);
1451
    functionExit(thr);
1452
    return result;
1453
JNI_END
1454

1455
JNI_ENTRY_CHECKED(jsize,
1456
  checked_jni_GetStringLength(JNIEnv *env,
1457
                              jstring str))
1458
    functionEnter(thr);
1459
    IN_VM(
1460
      checkString(thr, str);
1461
    )
1462
    jsize result = UNCHECKED()->GetStringLength(env,str);
1463
    functionExit(thr);
1464
    return result;
1465
JNI_END
1466

1467
// Arbitrary (but well-known) tag
1468
const void* STRING_TAG = (void*)0x47114711;
1469

1470
JNI_ENTRY_CHECKED(const jchar *,
1471
  checked_jni_GetStringChars(JNIEnv *env,
1472
                             jstring str,
1473
                             jboolean *isCopy))
1474
    functionEnter(thr);
1475
    IN_VM(
1476
      checkString(thr, str);
1477
    )
1478
    jchar* new_result = NULL;
1479
    const jchar *result = UNCHECKED()->GetStringChars(env,str,isCopy);
1480
    assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringChars didn't return a copy as expected");
1481
    if (result != NULL) {
1482
      size_t len = UNCHECKED()->GetStringLength(env,str) + 1; // + 1 for NULL termination
1483
      len *= sizeof(jchar);
1484
      new_result = (jchar*) GuardedMemory::wrap_copy(result, len, STRING_TAG);
1485
      if (new_result == NULL) {
1486
        vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringChars");
1487
      }
1488
      // Avoiding call to UNCHECKED()->ReleaseStringChars() since that will fire unexpected dtrace probes
1489
      // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1490
      FreeHeap((char*)result);
1491
    }
1492
    functionExit(thr);
1493
    return new_result;
1494
JNI_END
1495

1496
JNI_ENTRY_CHECKED(void,
1497
  checked_jni_ReleaseStringChars(JNIEnv *env,
1498
                                 jstring str,
1499
                                 const jchar *chars))
1500
    functionEnterExceptionAllowed(thr);
1501
    IN_VM(
1502
      checkString(thr, str);
1503
    )
1504
    if (chars == NULL) {
1505
       // still do the unchecked call to allow dtrace probes
1506
       UNCHECKED()->ReleaseStringChars(env,str,chars);
1507
    }
1508
    else {
1509
      GuardedMemory guarded((void*)chars);
1510
      if (!guarded.verify_guards()) {
1511
        tty->print_cr("ReleaseStringChars: release chars failed bounds check. "
1512
            "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1513
        guarded.print_on(tty);
1514
        NativeReportJNIFatalError(thr, "ReleaseStringChars: "
1515
            "release chars failed bounds check.");
1516
      }
1517
      if (guarded.get_tag() != STRING_TAG) {
1518
        tty->print_cr("ReleaseStringChars: called on something not allocated "
1519
            "by GetStringChars. string: " PTR_FORMAT " chars: " PTR_FORMAT,
1520
            p2i(str), p2i(chars));
1521
        NativeReportJNIFatalError(thr, "ReleaseStringChars called on something "
1522
            "not allocated by GetStringChars");
1523
      }
1524
       UNCHECKED()->ReleaseStringChars(env, str,
1525
           (const jchar*) guarded.release_for_freeing());
1526
    }
1527
    functionExit(thr);
1528
JNI_END
1529

1530
JNI_ENTRY_CHECKED(jstring,
1531
  checked_jni_NewStringUTF(JNIEnv *env,
1532
                           const char *utf))
1533
    functionEnter(thr);
1534
    jstring result = UNCHECKED()->NewStringUTF(env,utf);
1535
    functionExit(thr);
1536
    return result;
1537
JNI_END
1538

1539
JNI_ENTRY_CHECKED(jsize,
1540
  checked_jni_GetStringUTFLength(JNIEnv *env,
1541
                                 jstring str))
1542
    functionEnter(thr);
1543
    IN_VM(
1544
      checkString(thr, str);
1545
    )
1546
    jsize result = UNCHECKED()->GetStringUTFLength(env,str);
1547
    functionExit(thr);
1548
    return result;
1549
JNI_END
1550

1551
// Arbitrary (but well-known) tag - different than GetStringChars
1552
const void* STRING_UTF_TAG = (void*) 0x48124812;
1553

1554
JNI_ENTRY_CHECKED(const char *,
1555
  checked_jni_GetStringUTFChars(JNIEnv *env,
1556
                                jstring str,
1557
                                jboolean *isCopy))
1558
    functionEnter(thr);
1559
    IN_VM(
1560
      checkString(thr, str);
1561
    )
1562
    char* new_result = NULL;
1563
    const char *result = UNCHECKED()->GetStringUTFChars(env,str,isCopy);
1564
    assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringUTFChars didn't return a copy as expected");
1565
    if (result != NULL) {
1566
      size_t len = strlen(result) + 1; // + 1 for NULL termination
1567
      new_result = (char*) GuardedMemory::wrap_copy(result, len, STRING_UTF_TAG);
1568
      if (new_result == NULL) {
1569
        vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringUTFChars");
1570
      }
1571
      // Avoiding call to UNCHECKED()->ReleaseStringUTFChars() since that will fire unexpected dtrace probes
1572
      // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1573
      FreeHeap((char*)result, mtInternal);
1574
    }
1575
    functionExit(thr);
1576
    return new_result;
1577
JNI_END
1578

1579
JNI_ENTRY_CHECKED(void,
1580
  checked_jni_ReleaseStringUTFChars(JNIEnv *env,
1581
                                    jstring str,
1582
                                    const char* chars))
1583
    functionEnterExceptionAllowed(thr);
1584
    IN_VM(
1585
      checkString(thr, str);
1586
    )
1587
    if (chars == NULL) {
1588
       // still do the unchecked call to allow dtrace probes
1589
       UNCHECKED()->ReleaseStringUTFChars(env,str,chars);
1590
    }
1591
    else {
1592
      GuardedMemory guarded((void*)chars);
1593
      if (!guarded.verify_guards()) {
1594
        tty->print_cr("ReleaseStringUTFChars: release chars failed bounds check. "
1595
            "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1596
        guarded.print_on(tty);
1597
        NativeReportJNIFatalError(thr, "ReleaseStringUTFChars: "
1598
            "release chars failed bounds check.");
1599
      }
1600
      if (guarded.get_tag() != STRING_UTF_TAG) {
1601
        tty->print_cr("ReleaseStringUTFChars: called on something not "
1602
            "allocated by GetStringUTFChars. string: " PTR_FORMAT " chars: "
1603
            PTR_FORMAT, p2i(str), p2i(chars));
1604
        NativeReportJNIFatalError(thr, "ReleaseStringUTFChars "
1605
            "called on something not allocated by GetStringUTFChars");
1606
      }
1607
      UNCHECKED()->ReleaseStringUTFChars(env, str,
1608
          (const char*) guarded.release_for_freeing());
1609
    }
1610
    functionExit(thr);
1611
JNI_END
1612

1613
JNI_ENTRY_CHECKED(jsize,
1614
  checked_jni_GetArrayLength(JNIEnv *env,
1615
                             jarray array))
1616
    functionEnter(thr);
1617
    IN_VM(
1618
      check_is_array(thr, array);
1619
    )
1620
    jsize result = UNCHECKED()->GetArrayLength(env,array);
1621
    functionExit(thr);
1622
    return result;
1623
JNI_END
1624

1625
JNI_ENTRY_CHECKED(jobjectArray,
1626
  checked_jni_NewObjectArray(JNIEnv *env,
1627
                             jsize len,
1628
                             jclass clazz,
1629
                             jobject init))
1630
    functionEnter(thr);
1631
    jobjectArray result = UNCHECKED()->NewObjectArray(env,len,clazz,init);
1632
    functionExit(thr);
1633
    return result;
1634
JNI_END
1635

1636
JNI_ENTRY_CHECKED(jobject,
1637
  checked_jni_GetObjectArrayElement(JNIEnv *env,
1638
                                    jobjectArray array,
1639
                                    jsize index))
1640
    functionEnter(thr);
1641
    IN_VM(
1642
      check_is_obj_array(thr, array);
1643
    )
1644
    jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index);
1645
    functionExit(thr);
1646
    return result;
1647
JNI_END
1648

1649
JNI_ENTRY_CHECKED(void,
1650
  checked_jni_SetObjectArrayElement(JNIEnv *env,
1651
                                    jobjectArray array,
1652
                                    jsize index,
1653
                                    jobject val))
1654
    functionEnter(thr);
1655
    IN_VM(
1656
      check_is_obj_array(thr, array);
1657
    )
1658
    UNCHECKED()->SetObjectArrayElement(env,array,index,val);
1659
    functionExit(thr);
1660
JNI_END
1661

1662
#define WRAPPER_NewScalarArray(Return, Result) \
1663
JNI_ENTRY_CHECKED(Return, \
1664
  checked_jni_New##Result##Array(JNIEnv *env, \
1665
                                 jsize len)) \
1666
    functionEnter(thr); \
1667
    Return result = UNCHECKED()->New##Result##Array(env,len); \
1668
    functionExit(thr); \
1669
    return (Return) result; \
1670
JNI_END
1671

1672
WRAPPER_NewScalarArray(jbooleanArray, Boolean)
1673
WRAPPER_NewScalarArray(jbyteArray, Byte)
1674
WRAPPER_NewScalarArray(jshortArray, Short)
1675
WRAPPER_NewScalarArray(jcharArray, Char)
1676
WRAPPER_NewScalarArray(jintArray, Int)
1677
WRAPPER_NewScalarArray(jlongArray, Long)
1678
WRAPPER_NewScalarArray(jfloatArray, Float)
1679
WRAPPER_NewScalarArray(jdoubleArray, Double)
1680

1681
#define WRAPPER_GetScalarArrayElements(ElementTag,ElementType,Result) \
1682
JNI_ENTRY_CHECKED(ElementType *,  \
1683
  checked_jni_Get##Result##ArrayElements(JNIEnv *env, \
1684
                                         ElementType##Array array, \
1685
                                         jboolean *isCopy)) \
1686
    functionEnter(thr); \
1687
    IN_VM( \
1688
      check_primitive_array_type(thr, array, ElementTag); \
1689
    ) \
1690
    ElementType *result = UNCHECKED()->Get##Result##ArrayElements(env, \
1691
                                                                  array, \
1692
                                                                  isCopy); \
1693
    if (result != NULL) { \
1694
      result = (ElementType *) check_jni_wrap_copy_array(thr, array, result); \
1695
    } \
1696
    functionExit(thr); \
1697
    return result; \
1698
JNI_END
1699

1700
WRAPPER_GetScalarArrayElements(T_BOOLEAN, jboolean, Boolean)
1701
WRAPPER_GetScalarArrayElements(T_BYTE,    jbyte,    Byte)
1702
WRAPPER_GetScalarArrayElements(T_SHORT,   jshort,   Short)
1703
WRAPPER_GetScalarArrayElements(T_CHAR,    jchar,    Char)
1704
WRAPPER_GetScalarArrayElements(T_INT,     jint,     Int)
1705
WRAPPER_GetScalarArrayElements(T_LONG,    jlong,    Long)
1706
WRAPPER_GetScalarArrayElements(T_FLOAT,   jfloat,   Float)
1707
WRAPPER_GetScalarArrayElements(T_DOUBLE,  jdouble,  Double)
1708

1709
#define WRAPPER_ReleaseScalarArrayElements(ElementTag,ElementType,Result,Tag) \
1710
JNI_ENTRY_CHECKED(void,  \
1711
  checked_jni_Release##Result##ArrayElements(JNIEnv *env, \
1712
                                             ElementType##Array array, \
1713
                                             ElementType *elems, \
1714
                                             jint mode)) \
1715
    functionEnterExceptionAllowed(thr); \
1716
    IN_VM( \
1717
      check_primitive_array_type(thr, array, ElementTag); \
1718
      ASSERT_OOPS_ALLOWED; \
1719
      typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
1720
    ) \
1721
    ElementType* orig_result = (ElementType *) check_wrapped_array_release( \
1722
        thr, "checked_jni_Release"#Result"ArrayElements", array, elems, mode); \
1723
    UNCHECKED()->Release##Result##ArrayElements(env, array, orig_result, mode); \
1724
    functionExit(thr); \
1725
JNI_END
1726

1727
WRAPPER_ReleaseScalarArrayElements(T_BOOLEAN,jboolean, Boolean, bool)
1728
WRAPPER_ReleaseScalarArrayElements(T_BYTE,   jbyte,    Byte,    byte)
1729
WRAPPER_ReleaseScalarArrayElements(T_SHORT,  jshort,   Short,   short)
1730
WRAPPER_ReleaseScalarArrayElements(T_CHAR,   jchar,    Char,    char)
1731
WRAPPER_ReleaseScalarArrayElements(T_INT,    jint,     Int,     int)
1732
WRAPPER_ReleaseScalarArrayElements(T_LONG,   jlong,    Long,    long)
1733
WRAPPER_ReleaseScalarArrayElements(T_FLOAT,  jfloat,   Float,   float)
1734
WRAPPER_ReleaseScalarArrayElements(T_DOUBLE, jdouble,  Double,  double)
1735

1736
#define WRAPPER_GetScalarArrayRegion(ElementTag,ElementType,Result) \
1737
JNI_ENTRY_CHECKED(void,  \
1738
  checked_jni_Get##Result##ArrayRegion(JNIEnv *env, \
1739
                                       ElementType##Array array, \
1740
                                       jsize start, \
1741
                                       jsize len, \
1742
                                       ElementType *buf)) \
1743
    functionEnter(thr); \
1744
    IN_VM( \
1745
      check_primitive_array_type(thr, array, ElementTag); \
1746
    ) \
1747
    UNCHECKED()->Get##Result##ArrayRegion(env,array,start,len,buf); \
1748
    functionExit(thr); \
1749
JNI_END
1750

1751
WRAPPER_GetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1752
WRAPPER_GetScalarArrayRegion(T_BYTE,    jbyte,    Byte)
1753
WRAPPER_GetScalarArrayRegion(T_SHORT,   jshort,   Short)
1754
WRAPPER_GetScalarArrayRegion(T_CHAR,    jchar,    Char)
1755
WRAPPER_GetScalarArrayRegion(T_INT,     jint,     Int)
1756
WRAPPER_GetScalarArrayRegion(T_LONG,    jlong,    Long)
1757
WRAPPER_GetScalarArrayRegion(T_FLOAT,   jfloat,   Float)
1758
WRAPPER_GetScalarArrayRegion(T_DOUBLE,  jdouble,  Double)
1759

1760
#define WRAPPER_SetScalarArrayRegion(ElementTag,ElementType,Result) \
1761
JNI_ENTRY_CHECKED(void,  \
1762
  checked_jni_Set##Result##ArrayRegion(JNIEnv *env, \
1763
                                       ElementType##Array array, \
1764
                                       jsize start, \
1765
                                       jsize len, \
1766
                                       const ElementType *buf)) \
1767
    functionEnter(thr); \
1768
    IN_VM( \
1769
      check_primitive_array_type(thr, array, ElementTag); \
1770
    ) \
1771
    UNCHECKED()->Set##Result##ArrayRegion(env,array,start,len,buf); \
1772
    functionExit(thr); \
1773
JNI_END
1774

1775
WRAPPER_SetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1776
WRAPPER_SetScalarArrayRegion(T_BYTE,    jbyte,    Byte)
1777
WRAPPER_SetScalarArrayRegion(T_SHORT,   jshort,   Short)
1778
WRAPPER_SetScalarArrayRegion(T_CHAR,    jchar,    Char)
1779
WRAPPER_SetScalarArrayRegion(T_INT,     jint,     Int)
1780
WRAPPER_SetScalarArrayRegion(T_LONG,    jlong,    Long)
1781
WRAPPER_SetScalarArrayRegion(T_FLOAT,   jfloat,   Float)
1782
WRAPPER_SetScalarArrayRegion(T_DOUBLE,  jdouble,  Double)
1783

1784
JNI_ENTRY_CHECKED(jint,
1785
  checked_jni_RegisterNatives(JNIEnv *env,
1786
                              jclass clazz,
1787
                              const JNINativeMethod *methods,
1788
                              jint nMethods))
1789
    functionEnter(thr);
1790
    jint result = UNCHECKED()->RegisterNatives(env,clazz,methods,nMethods);
1791
    functionExit(thr);
1792
    return result;
1793
JNI_END
1794

1795
JNI_ENTRY_CHECKED(jint,
1796
  checked_jni_UnregisterNatives(JNIEnv *env,
1797
                                jclass clazz))
1798
    functionEnter(thr);
1799
    jint result = UNCHECKED()->UnregisterNatives(env,clazz);
1800
    functionExit(thr);
1801
    return result;
1802
JNI_END
1803

1804
JNI_ENTRY_CHECKED(jint,
1805
  checked_jni_MonitorEnter(JNIEnv *env,
1806
                           jobject obj))
1807
    functionEnter(thr);
1808
    IN_VM(
1809
      jniCheck::validate_object(thr, obj);
1810
    )
1811
    jint result = UNCHECKED()->MonitorEnter(env,obj);
1812
    functionExit(thr);
1813
    return result;
1814
JNI_END
1815

1816
JNI_ENTRY_CHECKED(jint,
1817
  checked_jni_MonitorExit(JNIEnv *env,
1818
                          jobject obj))
1819
    functionEnterExceptionAllowed(thr);
1820
    IN_VM(
1821
      jniCheck::validate_object(thr, obj);
1822
    )
1823
    jint result = UNCHECKED()->MonitorExit(env,obj);
1824
    functionExit(thr);
1825
    return result;
1826
JNI_END
1827

1828
JNI_ENTRY_CHECKED(jint,
1829
  checked_jni_GetJavaVM(JNIEnv *env,
1830
                        JavaVM **vm))
1831
    functionEnter(thr);
1832
    jint result = UNCHECKED()->GetJavaVM(env,vm);
1833
    functionExit(thr);
1834
    return result;
1835
JNI_END
1836

1837
JNI_ENTRY_CHECKED(void,
1838
  checked_jni_GetStringRegion(JNIEnv *env,
1839
                              jstring str,
1840
                              jsize start,
1841
                              jsize len,
1842
                              jchar *buf))
1843
    functionEnter(thr);
1844
    IN_VM(
1845
      checkString(thr, str);
1846
    )
1847
    UNCHECKED()->GetStringRegion(env, str, start, len, buf);
1848
    functionExit(thr);
1849
JNI_END
1850

1851
JNI_ENTRY_CHECKED(void,
1852
  checked_jni_GetStringUTFRegion(JNIEnv *env,
1853
                                 jstring str,
1854
                                 jsize start,
1855
                                 jsize len,
1856
                                 char *buf))
1857
    functionEnter(thr);
1858
    IN_VM(
1859
      checkString(thr, str);
1860
    )
1861
    UNCHECKED()->GetStringUTFRegion(env, str, start, len, buf);
1862
    functionExit(thr);
1863
JNI_END
1864

1865
JNI_ENTRY_CHECKED(void *,
1866
  checked_jni_GetPrimitiveArrayCritical(JNIEnv *env,
1867
                                        jarray array,
1868
                                        jboolean *isCopy))
1869
    functionEnterCritical(thr);
1870
    IN_VM(
1871
      check_is_primitive_array(thr, array);
1872
    )
1873
    void *result = UNCHECKED()->GetPrimitiveArrayCritical(env, array, isCopy);
1874
    if (result != NULL) {
1875
      result = check_jni_wrap_copy_array(thr, array, result);
1876
    }
1877
    functionExit(thr);
1878
    return result;
1879
JNI_END
1880

1881
JNI_ENTRY_CHECKED(void,
1882
  checked_jni_ReleasePrimitiveArrayCritical(JNIEnv *env,
1883
                                            jarray array,
1884
                                            void *carray,
1885
                                            jint mode))
1886
    functionEnterCriticalExceptionAllowed(thr);
1887
    IN_VM(
1888
      check_is_primitive_array(thr, array);
1889
    )
1890
    // Check the element array...
1891
    void* orig_result = check_wrapped_array_release(thr, "ReleasePrimitiveArrayCritical", array, carray, mode);
1892
    UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, orig_result, mode);
1893
    functionExit(thr);
1894
JNI_END
1895

1896
JNI_ENTRY_CHECKED(const jchar*,
1897
  checked_jni_GetStringCritical(JNIEnv *env,
1898
                                jstring string,
1899
                                jboolean *isCopy))
1900
    functionEnterCritical(thr);
1901
    IN_VM(
1902
      checkString(thr, string);
1903
    )
1904
    const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy);
1905
    functionExit(thr);
1906
    return result;
1907
JNI_END
1908

1909
JNI_ENTRY_CHECKED(void,
1910
  checked_jni_ReleaseStringCritical(JNIEnv *env,
1911
                                    jstring str,
1912
                                    const jchar *chars))
1913
    functionEnterCriticalExceptionAllowed(thr);
1914
    IN_VM(
1915
      checkString(thr, str);
1916
    )
1917
    /* The Hotspot JNI code does not use the parameters, so just check the
1918
     * string parameter as a minor sanity check
1919
     */
1920
    UNCHECKED()->ReleaseStringCritical(env, str, chars);
1921
    functionExit(thr);
1922
JNI_END
1923

1924
JNI_ENTRY_CHECKED(jweak,
1925
  checked_jni_NewWeakGlobalRef(JNIEnv *env,
1926
                               jobject obj))
1927
    functionEnter(thr);
1928
    IN_VM(
1929
      if (obj != NULL) {
1930
        jniCheck::validate_handle(thr, obj);
1931
      }
1932
    )
1933
    jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj);
1934
    functionExit(thr);
1935
    return result;
1936
JNI_END
1937

1938
JNI_ENTRY_CHECKED(void,
1939
  checked_jni_DeleteWeakGlobalRef(JNIEnv *env,
1940
                                  jweak ref))
1941
    functionEnterExceptionAllowed(thr);
1942
    UNCHECKED()->DeleteWeakGlobalRef(env, ref);
1943
    functionExit(thr);
1944
JNI_END
1945

1946
JNI_ENTRY_CHECKED(jboolean,
1947
  checked_jni_ExceptionCheck(JNIEnv *env))
1948
    thr->clear_pending_jni_exception_check();
1949
    functionEnterExceptionAllowed(thr);
1950
    jboolean result = UNCHECKED()->ExceptionCheck(env);
1951
    functionExit(thr);
1952
    return result;
1953
JNI_END
1954

1955
JNI_ENTRY_CHECKED(jobject,
1956
  checked_jni_NewDirectByteBuffer(JNIEnv *env,
1957
                                  void *address,
1958
                                  jlong capacity))
1959
    functionEnter(thr);
1960
    jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity);
1961
    functionExit(thr);
1962
    return result;
1963
JNI_END
1964

1965
JNI_ENTRY_CHECKED(void *,
1966
  checked_jni_GetDirectBufferAddress(JNIEnv *env,
1967
                                     jobject buf))
1968
    functionEnter(thr);
1969
    void* result = UNCHECKED()->GetDirectBufferAddress(env, buf);
1970
    functionExit(thr);
1971
    return result;
1972
JNI_END
1973

1974
JNI_ENTRY_CHECKED(jlong,
1975
  checked_jni_GetDirectBufferCapacity(JNIEnv *env,
1976
                                      jobject buf))
1977
    functionEnter(thr);
1978
    jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf);
1979
    functionExit(thr);
1980
    return result;
1981
JNI_END
1982

1983
JNI_ENTRY_CHECKED(jobjectRefType,
1984
  checked_jni_GetObjectRefType(JNIEnv *env,
1985
                               jobject obj))
1986
    functionEnter(thr);
1987
    /* validate the object being passed */
1988
    IN_VM(
1989
      jniCheck::validate_object(thr, obj);
1990
    )
1991
    jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj);
1992
    functionExit(thr);
1993
    return result;
1994
JNI_END
1995

1996

1997
JNI_ENTRY_CHECKED(jint,
1998
  checked_jni_GetVersion(JNIEnv *env))
1999
    functionEnter(thr);
2000
    jint result = UNCHECKED()->GetVersion(env);
2001
    functionExit(thr);
2002
    return result;
2003
JNI_END
2004

2005

2006

2007
/*
2008
 * Structure containing all checked jni functions
2009
 */
2010
struct JNINativeInterface_  checked_jni_NativeInterface = {
2011
    NULL,
2012
    NULL,
2013
    NULL,
2014

2015
    NULL,
2016

2017
    checked_jni_GetVersion,
2018

2019
    checked_jni_DefineClass,
2020
    checked_jni_FindClass,
2021

2022
    checked_jni_FromReflectedMethod,
2023
    checked_jni_FromReflectedField,
2024

2025
    checked_jni_ToReflectedMethod,
2026

2027
    checked_jni_GetSuperclass,
2028
    checked_jni_IsAssignableFrom,
2029

2030
    checked_jni_ToReflectedField,
2031

2032
    checked_jni_Throw,
2033
    checked_jni_ThrowNew,
2034
    checked_jni_ExceptionOccurred,
2035
    checked_jni_ExceptionDescribe,
2036
    checked_jni_ExceptionClear,
2037
    checked_jni_FatalError,
2038

2039
    checked_jni_PushLocalFrame,
2040
    checked_jni_PopLocalFrame,
2041

2042
    checked_jni_NewGlobalRef,
2043
    checked_jni_DeleteGlobalRef,
2044
    checked_jni_DeleteLocalRef,
2045
    checked_jni_IsSameObject,
2046

2047
    checked_jni_NewLocalRef,
2048
    checked_jni_EnsureLocalCapacity,
2049

2050
    checked_jni_AllocObject,
2051
    checked_jni_NewObject,
2052
    checked_jni_NewObjectV,
2053
    checked_jni_NewObjectA,
2054

2055
    checked_jni_GetObjectClass,
2056
    checked_jni_IsInstanceOf,
2057

2058
    checked_jni_GetMethodID,
2059

2060
    checked_jni_CallObjectMethod,
2061
    checked_jni_CallObjectMethodV,
2062
    checked_jni_CallObjectMethodA,
2063
    checked_jni_CallBooleanMethod,
2064
    checked_jni_CallBooleanMethodV,
2065
    checked_jni_CallBooleanMethodA,
2066
    checked_jni_CallByteMethod,
2067
    checked_jni_CallByteMethodV,
2068
    checked_jni_CallByteMethodA,
2069
    checked_jni_CallCharMethod,
2070
    checked_jni_CallCharMethodV,
2071
    checked_jni_CallCharMethodA,
2072
    checked_jni_CallShortMethod,
2073
    checked_jni_CallShortMethodV,
2074
    checked_jni_CallShortMethodA,
2075
    checked_jni_CallIntMethod,
2076
    checked_jni_CallIntMethodV,
2077
    checked_jni_CallIntMethodA,
2078
    checked_jni_CallLongMethod,
2079
    checked_jni_CallLongMethodV,
2080
    checked_jni_CallLongMethodA,
2081
    checked_jni_CallFloatMethod,
2082
    checked_jni_CallFloatMethodV,
2083
    checked_jni_CallFloatMethodA,
2084
    checked_jni_CallDoubleMethod,
2085
    checked_jni_CallDoubleMethodV,
2086
    checked_jni_CallDoubleMethodA,
2087
    checked_jni_CallVoidMethod,
2088
    checked_jni_CallVoidMethodV,
2089
    checked_jni_CallVoidMethodA,
2090

2091
    checked_jni_CallNonvirtualObjectMethod,
2092
    checked_jni_CallNonvirtualObjectMethodV,
2093
    checked_jni_CallNonvirtualObjectMethodA,
2094
    checked_jni_CallNonvirtualBooleanMethod,
2095
    checked_jni_CallNonvirtualBooleanMethodV,
2096
    checked_jni_CallNonvirtualBooleanMethodA,
2097
    checked_jni_CallNonvirtualByteMethod,
2098
    checked_jni_CallNonvirtualByteMethodV,
2099
    checked_jni_CallNonvirtualByteMethodA,
2100
    checked_jni_CallNonvirtualCharMethod,
2101
    checked_jni_CallNonvirtualCharMethodV,
2102
    checked_jni_CallNonvirtualCharMethodA,
2103
    checked_jni_CallNonvirtualShortMethod,
2104
    checked_jni_CallNonvirtualShortMethodV,
2105
    checked_jni_CallNonvirtualShortMethodA,
2106
    checked_jni_CallNonvirtualIntMethod,
2107
    checked_jni_CallNonvirtualIntMethodV,
2108
    checked_jni_CallNonvirtualIntMethodA,
2109
    checked_jni_CallNonvirtualLongMethod,
2110
    checked_jni_CallNonvirtualLongMethodV,
2111
    checked_jni_CallNonvirtualLongMethodA,
2112
    checked_jni_CallNonvirtualFloatMethod,
2113
    checked_jni_CallNonvirtualFloatMethodV,
2114
    checked_jni_CallNonvirtualFloatMethodA,
2115
    checked_jni_CallNonvirtualDoubleMethod,
2116
    checked_jni_CallNonvirtualDoubleMethodV,
2117
    checked_jni_CallNonvirtualDoubleMethodA,
2118
    checked_jni_CallNonvirtualVoidMethod,
2119
    checked_jni_CallNonvirtualVoidMethodV,
2120
    checked_jni_CallNonvirtualVoidMethodA,
2121

2122
    checked_jni_GetFieldID,
2123

2124
    checked_jni_GetObjectField,
2125
    checked_jni_GetBooleanField,
2126
    checked_jni_GetByteField,
2127
    checked_jni_GetCharField,
2128
    checked_jni_GetShortField,
2129
    checked_jni_GetIntField,
2130
    checked_jni_GetLongField,
2131
    checked_jni_GetFloatField,
2132
    checked_jni_GetDoubleField,
2133

2134
    checked_jni_SetObjectField,
2135
    checked_jni_SetBooleanField,
2136
    checked_jni_SetByteField,
2137
    checked_jni_SetCharField,
2138
    checked_jni_SetShortField,
2139
    checked_jni_SetIntField,
2140
    checked_jni_SetLongField,
2141
    checked_jni_SetFloatField,
2142
    checked_jni_SetDoubleField,
2143

2144
    checked_jni_GetStaticMethodID,
2145

2146
    checked_jni_CallStaticObjectMethod,
2147
    checked_jni_CallStaticObjectMethodV,
2148
    checked_jni_CallStaticObjectMethodA,
2149
    checked_jni_CallStaticBooleanMethod,
2150
    checked_jni_CallStaticBooleanMethodV,
2151
    checked_jni_CallStaticBooleanMethodA,
2152
    checked_jni_CallStaticByteMethod,
2153
    checked_jni_CallStaticByteMethodV,
2154
    checked_jni_CallStaticByteMethodA,
2155
    checked_jni_CallStaticCharMethod,
2156
    checked_jni_CallStaticCharMethodV,
2157
    checked_jni_CallStaticCharMethodA,
2158
    checked_jni_CallStaticShortMethod,
2159
    checked_jni_CallStaticShortMethodV,
2160
    checked_jni_CallStaticShortMethodA,
2161
    checked_jni_CallStaticIntMethod,
2162
    checked_jni_CallStaticIntMethodV,
2163
    checked_jni_CallStaticIntMethodA,
2164
    checked_jni_CallStaticLongMethod,
2165
    checked_jni_CallStaticLongMethodV,
2166
    checked_jni_CallStaticLongMethodA,
2167
    checked_jni_CallStaticFloatMethod,
2168
    checked_jni_CallStaticFloatMethodV,
2169
    checked_jni_CallStaticFloatMethodA,
2170
    checked_jni_CallStaticDoubleMethod,
2171
    checked_jni_CallStaticDoubleMethodV,
2172
    checked_jni_CallStaticDoubleMethodA,
2173
    checked_jni_CallStaticVoidMethod,
2174
    checked_jni_CallStaticVoidMethodV,
2175
    checked_jni_CallStaticVoidMethodA,
2176

2177
    checked_jni_GetStaticFieldID,
2178

2179
    checked_jni_GetStaticObjectField,
2180
    checked_jni_GetStaticBooleanField,
2181
    checked_jni_GetStaticByteField,
2182
    checked_jni_GetStaticCharField,
2183
    checked_jni_GetStaticShortField,
2184
    checked_jni_GetStaticIntField,
2185
    checked_jni_GetStaticLongField,
2186
    checked_jni_GetStaticFloatField,
2187
    checked_jni_GetStaticDoubleField,
2188

2189
    checked_jni_SetStaticObjectField,
2190
    checked_jni_SetStaticBooleanField,
2191
    checked_jni_SetStaticByteField,
2192
    checked_jni_SetStaticCharField,
2193
    checked_jni_SetStaticShortField,
2194
    checked_jni_SetStaticIntField,
2195
    checked_jni_SetStaticLongField,
2196
    checked_jni_SetStaticFloatField,
2197
    checked_jni_SetStaticDoubleField,
2198

2199
    checked_jni_NewString,
2200
    checked_jni_GetStringLength,
2201
    checked_jni_GetStringChars,
2202
    checked_jni_ReleaseStringChars,
2203

2204
    checked_jni_NewStringUTF,
2205
    checked_jni_GetStringUTFLength,
2206
    checked_jni_GetStringUTFChars,
2207
    checked_jni_ReleaseStringUTFChars,
2208

2209
    checked_jni_GetArrayLength,
2210

2211
    checked_jni_NewObjectArray,
2212
    checked_jni_GetObjectArrayElement,
2213
    checked_jni_SetObjectArrayElement,
2214

2215
    checked_jni_NewBooleanArray,
2216
    checked_jni_NewByteArray,
2217
    checked_jni_NewCharArray,
2218
    checked_jni_NewShortArray,
2219
    checked_jni_NewIntArray,
2220
    checked_jni_NewLongArray,
2221
    checked_jni_NewFloatArray,
2222
    checked_jni_NewDoubleArray,
2223

2224
    checked_jni_GetBooleanArrayElements,
2225
    checked_jni_GetByteArrayElements,
2226
    checked_jni_GetCharArrayElements,
2227
    checked_jni_GetShortArrayElements,
2228
    checked_jni_GetIntArrayElements,
2229
    checked_jni_GetLongArrayElements,
2230
    checked_jni_GetFloatArrayElements,
2231
    checked_jni_GetDoubleArrayElements,
2232

2233
    checked_jni_ReleaseBooleanArrayElements,
2234
    checked_jni_ReleaseByteArrayElements,
2235
    checked_jni_ReleaseCharArrayElements,
2236
    checked_jni_ReleaseShortArrayElements,
2237
    checked_jni_ReleaseIntArrayElements,
2238
    checked_jni_ReleaseLongArrayElements,
2239
    checked_jni_ReleaseFloatArrayElements,
2240
    checked_jni_ReleaseDoubleArrayElements,
2241

2242
    checked_jni_GetBooleanArrayRegion,
2243
    checked_jni_GetByteArrayRegion,
2244
    checked_jni_GetCharArrayRegion,
2245
    checked_jni_GetShortArrayRegion,
2246
    checked_jni_GetIntArrayRegion,
2247
    checked_jni_GetLongArrayRegion,
2248
    checked_jni_GetFloatArrayRegion,
2249
    checked_jni_GetDoubleArrayRegion,
2250

2251
    checked_jni_SetBooleanArrayRegion,
2252
    checked_jni_SetByteArrayRegion,
2253
    checked_jni_SetCharArrayRegion,
2254
    checked_jni_SetShortArrayRegion,
2255
    checked_jni_SetIntArrayRegion,
2256
    checked_jni_SetLongArrayRegion,
2257
    checked_jni_SetFloatArrayRegion,
2258
    checked_jni_SetDoubleArrayRegion,
2259

2260
    checked_jni_RegisterNatives,
2261
    checked_jni_UnregisterNatives,
2262

2263
    checked_jni_MonitorEnter,
2264
    checked_jni_MonitorExit,
2265

2266
    checked_jni_GetJavaVM,
2267

2268
    checked_jni_GetStringRegion,
2269
    checked_jni_GetStringUTFRegion,
2270

2271
    checked_jni_GetPrimitiveArrayCritical,
2272
    checked_jni_ReleasePrimitiveArrayCritical,
2273

2274
    checked_jni_GetStringCritical,
2275
    checked_jni_ReleaseStringCritical,
2276

2277
    checked_jni_NewWeakGlobalRef,
2278
    checked_jni_DeleteWeakGlobalRef,
2279

2280
    checked_jni_ExceptionCheck,
2281

2282
    checked_jni_NewDirectByteBuffer,
2283
    checked_jni_GetDirectBufferAddress,
2284
    checked_jni_GetDirectBufferCapacity,
2285

2286
    // New 1.6 Features
2287

2288
    checked_jni_GetObjectRefType
2289
};
2290

2291

2292
// Returns the function structure
2293
struct JNINativeInterface_* jni_functions_check() {
2294

2295
  unchecked_jni_NativeInterface = jni_functions_nocheck();
2296

2297
  // make sure the last pointer in the checked table is not null, indicating
2298
  // an addition to the JNINativeInterface_ structure without initializing
2299
  // it in the checked table.
2300
  debug_only(int *lastPtr = (int *)((char *)&checked_jni_NativeInterface + \
2301
             sizeof(*unchecked_jni_NativeInterface) - sizeof(char *));)
2302
  assert(*lastPtr != 0,
2303
         "Mismatched JNINativeInterface tables, check for new entries");
2304

2305
  // with -verbose:jni this message will print
2306
  if (PrintJNIResolving) {
2307
    tty->print_cr("Checked JNI functions are being used to " \
2308
                  "validate JNI usage");
2309
  }
2310

2311
  return &checked_jni_NativeInterface;
2312
}
2313

2314
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