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/*
* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
*
* @summary converted from VM Testbase nsk/jvmti/IterateOverHeap/iterheap003.
* VM Testbase keywords: [quick, jpda, jvmti, noras]
* VM Testbase readme:
* DESCRIPTION
* This JVMTI test exercises JVMTI heap function IterateOverHeap().
* This test checks that IterateOverHeap() function with
* JVMTI_HEAP_OBJECT_UNTAGGED filter iterates over all untagged
* objects in the heap even is they are not reachable;
* and passes correct values to the callback.
* The test creates and tags the following tested objects:
* root object - root object with 2 chains
* chain of reachable objects - tagged/untagged objects to be iterated
* chain of unreachable objects - tagged objects to be iterated or GC'ed
* The test marks reachable objects with positive tags and
* unreachable objects with negative tags.
* Also each object in reachable chain is marked with zero tag
* (i.e., left untagged).
* Unreachable objects are monitored for OBJECT_FREE event to know
* if they were not iterated because of garbage collected.
* Local JNI references are explicitely deleted to ensure them
* not to affect the objects' reachability.
* The test supports the following special options:
* objects=<number>
* - number of objects in each objects chain
* info=[none|all|objref|stackref|heaproot|heapobj|tagged]
* - print trace message for each invocation of particular callback
* COMMENTS
* Fixed according to 4960375 bug.
* The test updated to match new JVMTI spec 0.2.94.
* Fixed the 5005389 bug.
*
* @library /vmTestbase
* /test/lib
* @run driver jdk.test.lib.FileInstaller . .
* @build ExecDriver
* nsk.jvmti.IterateOverHeap.iterheap003
* @run main/othervm/native PropertyResolvingWrapper ExecDriver --java
* "-agentlib:iterheap003=-waittime=5 objects=4"
* nsk.jvmti.IterateOverHeap.iterheap003
*/
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