67 lines
3.0 KiB
Java
67 lines
3.0 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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*
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* @summary converted from VM Testbase nsk/jvmti/IterateOverInstancesOfClass/iterinstcls003.
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* VM Testbase keywords: [quick, jpda, jvmti, noras]
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* VM Testbase readme:
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* DESCRIPTION
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* This JVMTI test exercises JVMTI heap function IterateOverInstancesOfClass().
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* This test checks that IterateOverInstancesOfClass() function
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* with JVMTI_HEAP_OBJECT_UNTAGGED filter iterates over all untagged
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* instances of the tested class even is they are not reachable;
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* and passes correct values to the callback.
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* The test creates and tags the following tested objects:
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* root object - root object with 2 chains
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* chain of reachable objects - tagged/untagged objects to be iterated
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* chain of unreachable objects - tagged objects to be iterated or GC'ed
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* The test marks reachable objects with positive tags and
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* unreachable objects with negative tags.
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* Also each object in reachable chain is marked with zero tag
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* (i.e., left untagged).
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* Unreachable objects are monitored for OBJECT_FREE event to know
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* if they were not iterated because of garbage collected.
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* Local JNI references are explicitely deleted to ensure them
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* not to affect the objects' reachability.
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* The test supports the following special options:
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* objects=<number>
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* - number of objects in each objects chain
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* info=[none|all|objref|stackref|heaproot|heapobj]
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* - print trace message for each invocation of particular callback
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* COMMENTS
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* Fixed according to 4960375 bug.
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* The test updated to match new JVMTI spec 0.2.94.
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* Fixed the 5005389 bug.
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*
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* @library /vmTestbase
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* /test/lib
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* @build nsk.jvmti.IterateOverInstancesOfClass.iterinstcls003
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* @run main/othervm/native
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* -agentlib:iterinstcls003=-waittime=5,objects=4
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* nsk.jvmti.IterateOverInstancesOfClass.iterinstcls003
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*/
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