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/*
* @test
*
* @summary converted from VM Testbase nsk/jvmti/scenarios/events/EM02/em02t002.
* VM Testbase keywords: [jpda, jvmti, onload_only_logic, noras, nonconcurrent]
* VM Testbase readme:
* DESCRIPTION
* This JVMTI test is for EM02 scenario of "events and event management" area.
* Test executes the following several steps for events
* GARBAGE_COLLECTION_OCCURRED, GARBAGE_COLLECTION_START,
* GARBAGE_COLLECTION_FINISH:
* (1)
* - adds the <can_generate_garbage_collection_events> capability in
* the OnLoad phase
* - sets callbacks for VM_INIT and all events of optional functionality
* during the OnLoad phase
* - enables events via SetEventNotificationMode during the OnLoad phase
* for all optional events
* - provides the state to provoke generation of choosen events
* - checks that VM_INIT and choosen events were sent.
* (2)
* - sets off callbacks for all optional events
* - changes callbacks for choosen events
* - provides the state to provoke generation of choosen events
* - checks that choosen events were sent
* - checks that altered callback works.
* (3)
* - sets off callbacks for choosen events
* - sets callback for VM_DEATH event
* - checks that no choosen events are sent until VMDeath event.
* This test checks that:
* (a) except for choosen events no other optional events are generated on
* steps (1) and (2).
* (b) Numbers of expected event on steps (1) and (2) is equal to 1.
* (c) except for VM_DEATH no other events are generated on step (3).
* COMMENTS
* Adjusted according to CCC update
* #4989580: JVMTI: Add JVMTI_ERROR_MUST_POSSESS_CAPABILITY to
* SetEventNotificationMode
* Modified due to fix of the bug
* 5010571 TEST_BUG: jvmti tests with VMObjectAlloc callbacks should
* be adjusted to new spec
* Fixed 5028164 bug.
* Fixed
* #5045048 TEST_BUG: jvmti tests should synchronize access to static vars
*
* @library /vmTestbase
* /test/lib
* @run driver jdk.test.lib.FileInstaller . .
* @run main/othervm/native
* -agentlib:em02t002=-waittime=5
* -XX:-UseGCOverheadLimit
* nsk.jvmti.scenarios.events.EM02.em02t002
*/