TestDescription.java

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/*
 * @test
 *
 * @summary converted from VM Testbase nsk/jvmti/AddToBootstrapClassLoaderSearch/bootclssearch002.
 * VM Testbase keywords: [quick, jpda, jvmti, onload_only_logic, noras, no_cds]
 * VM Testbase readme:
 * DESCRIPTION
 *     This JVMTI test exercises JVMTI thread function AddToBootstrapClassLoaderSearch().
 *     This test checks that AddToBootstrapClassLoaderSearch() adds segment
 *     to bootstrap class search path and bootstrap classloader will find
 *     debuggee class using that segment.
 *     Debuggee class has direct superclass located in the original bootstrap classpath.
 *     The following checks are performed by the test:
 *         - AddToBootstrapClassLoaderSearch() returns no errors in OnLoad phase
 *         - debuggee class will be found by bootstrap classloader using added segment
 *         - superclass needed for debuggee class will be also found by bootstrap
 *           classloader though located in the original bootstrap classpath
 *         - superclass needed for debuggee class will be loaded from bootstrap
 *           classpath, not from usual classpath
 *     Source of debuggee class 'bootclssearch002' is located in subdirectory 'newclass'.
 *     It will be compiled to '$COMMON_CLASSES_LOCATION/newclass', where it usually
 *     cannot be found by bootstrap classloader.
 *     The superclass 'bootclssearch002p' has two different implementations.
 *     Source of "positive" implementation is located in subdirectory 'loadclass'.
 *     It will be compiled to '$COMMON_CLASSES_LOCATION/loadclass' that is added
 *     to original bootstrap classpath using option -Xbootclasspath/a.
 *     This implementation returns PASS.
 *     Source of "negative" implementation is located in the currect directory.
 *     It will be compiled to '$COMMON_CLASSES_LOCATION/classes' that is available
 *     from usual classpath.
 *     This implementation prints error and returns FAIL.
 *     The agent adds '$COMMON_CLASSES_LOCATION/newclass' directory with debuggee
 *     class implementation to the bootstrap class search path in Agent_OnLoad(),
 *     and thus the debuggee class should be found by bootstrap classloader.
 *     While loading debuggee class the bootstrap classloader should find and load
 *     "positive" implementation of superclass available from original bootstrap
 *     classpath, but not "negative" implementation available from usual classpath.
 *     If AddToBootstrapClassLoaderSearch() returns error in Agent_OnLoad(),
 *     then agent returns JNI_ERR and VM fails on initialization.
 *     If AddToBootstrapClassLoaderSearch() does not adds segment to bootstrap
 *     classloader search path, then debuggee class is not found and VM
 *     fails on initialization.
 *     If bootstrap classloader cannot find superclass located by the original
 *     bootstrap classpath, then VM also fails on initialization.
 *     If bootstrap classloader loads "negative" implementation of superclass
 *     available from usual classpath, then the debuggee class returns FAIL,
 *     and the test fails with exit code 97.
 *     Otherwise, if segment is successfully added and debuggee class with positive
 *     implementation of superclass are found, loaded, and executed, then it
 *     returns PASS. and the test passes with exit code 95.
 * COMMENTS
 *     Made code cleanup: nsk/share/jvmti/AddToBootstrapClassLoaderSearch/bootclssearch_agent
 *                        agent is used now.
 *
 * @library /vmTestbase
 *          /test/lib
 * @build nsk.jvmti.AddToBootstrapClassLoaderSearch.bootclssearch002p
 *
 * @comment compile loadclassXX to bin/loadclassXX
 * @run driver nsk.share.ExtraClassesBuilder
 *      loadclass
 *
 * @comment compile newclassXX to bin/newclassXX
 * @run driver nsk.share.ExtraClassesBuilder
 *      newclass
 *
 * @comment ExecDriver is used b/c main class isn't on source/class path
 * @run main/othervm/native ExecDriver --java
 *      -Xbootclasspath/a:./bin/loadclass
 *      -agentlib:bootclssearch_agent=-waittime=5,phasetocheck=onload,segment1=./bin/newclass
 *      nsk.jvmti.AddToBootstrapClassLoaderSearch.bootclssearch002
 */