TestDescription.java

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/*
 * @test
 *
 * @summary converted from VM Testbase nsk/jvmti/AttachOnDemand/attach002a.
 * VM Testbase keywords: [quick, jpda, jvmti, noras, redefine, feature_282, vm6, jdk]
 * VM Testbase readme:
 * Description :
 *     Test tries to load jvmti agent to the VM after the VM has started using
 *     Attach API (com.sun.tools.attach).
 *     Test is based on the nsk.share.aod framework. In the terms of this framework
 *     java application running in the VM where agent is loaded to is called 'target application'.
 *     This is regression test for "5002268: Allow class sharing use with RedefineClasses".
 *     Test tries to redefine class java.lang.InterruptedException (class from the system jar which
 *     is included in the shared archive).
 *     (5002268 was fixed in JDK6 b86, with earlier builds this test fails because of JVMTI function
 *     RedefineClasses fails with error JVMTI_ERROR_UNMODIFIABLE_CLASS).
 *     Test scenario:
 *         - during initialization agent tries to get capabilities 'can_generate_vm_object_alloc_events'
 *         and 'can_redefine_classes' and enables VMObjectAlloc events
 *         - target application creates instance of InterruptedException using InterruptedException.class.newInstance,
 *         after this agent should receive VMObjectAlloc event
 *         - agent receives VMObjectAlloc event, redefines InterruptedException class and finishes work
 *         - target application creates one more instance of Interrupted exception and checks that redefinition
 *         really had effect
 *
 * @library /vmTestbase
 *          /test/lib
 * @build nsk.share.aod.AODTestRunner
 *
 * @comment compile newclassXX to bin/newclassXX
 * @run driver ExecDriver --cmd
 *      ${compile.jdk}/bin/javac
 *      --patch-module java.base=${test.src}/newclass00/java.base
 *      -d bin/newclass00
 *      ${test.src}/newclass00/java.base/java/lang/InterruptedException.java
 *
 * @build nsk.jvmti.AttachOnDemand.attach002a.attach002aTarget
 * @run main/othervm/native
 *      nsk.share.aod.AODTestRunner
 *      -jdk ${test.jdk}
 *      -target nsk.jvmti.AttachOnDemand.attach002a.attach002aTarget
 *      -javaOpts="-XX:+UsePerfData ${test.vm.opts} ${test.java.opts}"
 *      -na attach002aAgent00=-pathToNewByteCode=./bin/newclass00
 */