use :
#export LIBSAPROC_DEBUG=1
#jmap -heap 15572
Attaching to process ID 15572, please wait...
....
...
Debugger attached successfully.
Server compiler detected.
JVM version is 24.95-b01
libsaproc DEBUG: lookup failed for symbol '_ZTV20ParallelScavengeHeap' in obj 'libjvm.so'
libsaproc DEBUG: lookup failed for symbol '_ZTV20ParallelScavengeHeap' in obj 'libjvm_g.so'
libsaproc DEBUG: lookup failed for symbol '_ZTV20ParallelScavengeHeap' in obj 'gamma_g'
libsaproc DEBUG: lookup failed for symbol '_ZTV16GenCollectedHeap' in obj 'libjvm.so'
libsaproc DEBUG: lookup failed for symbol '_ZTV16GenCollectedHeap' in obj 'libjvm_g.so'
libsaproc DEBUG: lookup failed for symbol '_ZTV16GenCollectedHeap' in obj 'gamma_g'
libsaproc DEBUG: lookup failed for symbol '_ZTV15G1CollectedHeap' in obj 'libjvm.so'
libsaproc DEBUG: lookup failed for symbol '_ZTV15G1CollectedHeap' in obj 'libjvm_g.so'
libsaproc DEBUG: lookup failed for symbol '_ZTV15G1CollectedHeap' in obj 'gamma_g'
or :
#jmap -dump:format=b,file=here /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java /var/tmp/jvm.core.15572 2>&1 | grep UseSharedSpaces
libsaproc DEBUG: lookup failed for symbol 'UseSharedSpaces' in obj '/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/server/libjvm.so'
libsaproc DEBUG: can't lookup 'UseSharedSpaces' flag
Confirm missing symbols :
use : ScavengeHeap' in obj 'libjvm.so' ScavengeHeap' in obj 'libjvm_g.so' ScavengeHeap' in obj 'gamma_g' ctedHeap' in obj 'libjvm.so' ctedHeap' in obj 'libjvm_g.so' ctedHeap' in obj 'gamma_g' tedHeap' in obj 'libjvm.so' tedHeap' in obj 'libjvm_g.so' tedHeap' in obj 'gamma_g'
#export LIBSAPROC_DEBUG=1
#jmap -heap 15572
Attaching to process ID 15572, please wait...
....
...
Debugger attached successfully.
Server compiler detected.
JVM version is 24.95-b01
libsaproc DEBUG: lookup failed for symbol '_ZTV20Parallel
libsaproc DEBUG: lookup failed for symbol '_ZTV20Parallel
libsaproc DEBUG: lookup failed for symbol '_ZTV20Parallel
libsaproc DEBUG: lookup failed for symbol '_ZTV16GenColle
libsaproc DEBUG: lookup failed for symbol '_ZTV16GenColle
libsaproc DEBUG: lookup failed for symbol '_ZTV16GenColle
libsaproc DEBUG: lookup failed for symbol '_ZTV15G1Collec
libsaproc DEBUG: lookup failed for symbol '_ZTV15G1Collec
libsaproc DEBUG: lookup failed for symbol '_ZTV15G1Collec
or :
#jmap -dump:format= b,file= here /usr/lib/ jvm/java- 7-openjdk- amd64/jre/ bin/java /var/tmp/ jvm.core. 15572 2>&1 | grep UseSharedSpaces jvm/java- 7-openjdk- amd64/jre/ lib/amd64/ server/ libjvm. so'
libsaproc DEBUG: lookup failed for symbol 'UseSharedSpaces' in obj '/usr/lib/
libsaproc DEBUG: can't lookup 'UseSharedSpaces' flag