blob: 53943c6b364722c6ee97e2fe14eaeb9d4efbf673 [file] [log] [blame]
/*
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/*
* @test
*
* @summary converted from VM Testbase nsk/jvmti/IterateOverInstancesOfClass/iterinstcls001.
* VM Testbase keywords: [quick, jpda, jvmti, noras]
* VM Testbase readme:
* DESCRIPTION
* This JVMTI test exercises JVMTI heap function IterateOverInstancesOfClass().
* This test checks that IterateOverInstancesOfClass() function with
* JVMTI_HEAP_OBJECT_EITHER filter iterates over all tagged and untagged
* instances of the tested class 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]
* - 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.IterateOverInstancesOfClass.iterinstcls001
* @run main/othervm/native PropertyResolvingWrapper ExecDriver --java
* "-agentlib:iterinstcls001=-waittime=5 objects=4"
* nsk.jvmti.IterateOverInstancesOfClass.iterinstcls001
*/