59 lines
2.7 KiB
Java
59 lines
2.7 KiB
Java
/*
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* Copyright (c) 2018, 2020, 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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* @test
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* @key randomness
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*
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* @summary converted from VM Testbase nsk/jvmti/AttachOnDemand/attach020.
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* VM Testbase keywords: [jpda, jvmti, noras, feature_282, vm6, jdk, nonconcurrent]
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* VM Testbase readme:
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* Description :
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* Test tries to load jvmti agent to the VM after the VM has started using
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* Attach API (com.sun.tools.attach).
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* Test is based on the nsk.share.aod framework. In the terms of this framework
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* java application running in the VM where agent is loaded to is called 'target application'.
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* Test scenario:
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* - during initialization (from function Agent_OnAttach) agent starts auxiliary thread waiting on
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* raw monitor and enables GarbageCollectionStart and GarbageCollectionFinish events
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* - target application provokes garbage collection (calls System.gc())
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* - agent receives event GarbageCollectionStart
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* - agent receives event GarbageCollectionFinish event and notifies waiting auxiliary thread
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* - notified auxiliary thread notifies target application that agent finished its work
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* (auxiliary thread is needed because of to notify target application about agent finishing JNI
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* functions are used, and these functions can't be called from GarbageCollectionFinish event handler)
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*
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* @library /vmTestbase
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* /test/lib
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* @build nsk.share.aod.AODTestRunner
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* nsk.jvmti.AttachOnDemand.attach020.attach020Target
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* @run main/othervm/native
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* nsk.share.aod.AODTestRunner
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* -jdk ${test.jdk}
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* -target nsk.jvmti.AttachOnDemand.attach020.attach020Target
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* -javaOpts="-XX:+UsePerfData ${test.vm.opts} ${test.java.opts}"
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* -na attach020Agent00
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*/
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