JDK-6551457 : JVMTI: reference_info in HeapReferenceCallback is not NULL for "otherwise" reference_kind
- Type: Bug
- Component: hotspot
- Sub-Component: jvmti
- Affected Version: 6
- Priority: P2
- Status: Closed
- Resolution: Fixed
- OS: generic
- CPU: generic
- Submitted: 2007-04-28
- Updated: 2011-09-22
- Resolved: 2011-03-08
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| JDK 6 | JDK 7 | Other |
|---|---|---|
6u10Fixed  |
7Fixed |
hs11Fixed |
Description
Filed By : JCK team
JDK : java full version "1.6.0-fcs"
JCK : 6a-b11
Platform[s] : all
switch/Mode : default
JCK test owner : http://javaweb.sfbay/jcce/tcks/jck/docs/others/owners.jto
Failed tests:
vm/jvmti/FollowReferences/fref001/fref00107/fref00107.html
vm/jvmti/FollowReferences/fref001/fref00107/fref00107a.html
The JVM TI 1.1 specification for Heap Reference Callback at:
http://javaweb.sfbay/java/re/jdk/6.0/latest/docs/platform/jvmti/jvmti.html#jvmtiHeapReferenceCallback
states as follows:
---Excerpt-from-spec---
typedef jint (JNICALL *jvmtiHeapReferenceCallback)
(jvmtiHeapReferenceKind reference_kind,
const jvmtiHeapReferenceInfo* reference_info,
jlong class_tag,
jlong referrer_class_tag,
jlong size,
jlong* tag_ptr,
jlong* referrer_tag_ptr,
jint length,
void* user_data);
...
reference_info const jvmtiHeapReferenceInfo*
Details about the reference. Set when the reference_kind is JVMTI_HEAP_REFERENCE_FIELD,
JVMTI_HEAP_REFERENCE_STATIC_FIELD, JVMTI_HEAP_REFERENCE_ARRAY_ELEMENT, JVMTI_HEAP_REFERENCE_CONSTANT_POOL,
JVMTI_HEAP_REFERENCE_STACK_LOCAL, or JVMTI_HEAP_REFERENCE_JNI_LOCAL. Otherwise NULL.
---End-of-excerpt---
However, reference_info is not NULL when reference_kind is not one of above constants,
(for example, when reference_kind is JVMTI_HEAP_REFERENCE_CLASS).
Please see attached .jtr file for detail and use the following script to reproduce the failures:
--- runTest.sh ---
echo `uname -a`
TESTEDJDK="/java/re/jdk/6.0/latest/binaries/solaris-sparc"
CC="/net/ipcsdist/export1/patches/nozomi_patch/dist/sparc-S2/bin/cc"
JCK="/java/re/jck/6a/qac/latest/binaries/JCK-runtime-6a/"
OUTPUTDIR=$HOME
TESTCLASS="javasoft.sqe.tests.vm.jvmti.fref001.fref00107.fref00107"
AGENTOPTS="-agentlib:jckjvmti=fref00107"
JDKOPTS="-showversion -Xfuture"
TESTARGS="-platform.jvmtiSupported true"
echo "Compiling libjckjvmt.so ..."
${CC} -G -KPIC -o ${OUTPUTDIR}/libjckjvmti.so -I${JCK} -I${JCK}src/share/lib/jvmti/include \
-I${JCK}src/share/lib/jni/include -I${JCK}src/share/lib/jni/include/solaris \
${JCK}src/share/lib/jvmti/jckjvmti.c
export LD_LIBRARY_PATH=${OUTPUTDIR}:${LD_LIBRARY_PATH}
echo " "
RUNCMD="${TESTEDJDK}/bin/java ${AGENTOPTS} ${JDKOPTS} -classpath ${JCK}/classes ${TESTCLASS} ${TESTARGS}"
echo "${RUNCMD}"
$RUNCMD
--- runTest.sh ---
Test output:
==============
<yg153347@sqeel> ./runTest.sh
SunOS sqeel 5.9 Generic_122300-02 sun4u sparc SUNW,Ultra-Enterprise
Compiling libjckjvmt.so ...
/java/re/jdk/6.0/latest/binaries/solaris-sparc/bin/java -agentlib:jckjvmti=fref00107 -showversion -Xfuture -classpath /java/re/jck/6a/qac/latest/binaries/JCK-runtime-6a//classes javasoft.sqe.tests.vm.jvmti.fref001.fref00107.fref00107 -platform.jvmtiSupported true
java version "1.6.0"
Java(TM) SE Runtime Environment (build 1.6.0-b105)
Java HotSpot(TM) Server VM (build 1.6.0-b105, mixed mode)
Checking can_tag_objects capability ... available
reference_info is unexpectedly NOT NULL for JVMTI_HEAP_REFERENCE_CLASS
HeapReferenceCallback was called 605 times
==============
Sources for JCK tests failed due to this issue are available at:
http://javaweb.sfbay.sun.com/java/re/jck/6a/qac/latest/binaries/JCK-runtime-6a/tests/vm/jvmti/FollowReferences/fref001/fref00107/fref00107.html
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