WebSphere Liberty Code Dump Generated while running application with java instrumentation agent

0
votes

Java Agent is not instrumenting methods starting with package "com.ibm.ws".

But still getting javacore when server compiling below method:

2XHREGISTER      CR2: 0000000000000000
1XHEXCPMODULE  Compiling method: com/ibm/ws/security/jaspi/JaspiServletFilter.doFilter(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;Ljavax/servlet/FilterChain;)V
NULL

But when we exclude these methods using -Xjit:exclude={...} then not getting javacore as given in example below-

1CICMDLINE
/opt/IBM/InstallationManager/eclipse/jre_8.0.5040.20190923_1526/jre/bin/java -javaagent:/opt/IBM/WebSphere/Liberty/bin/tools/ws-javaagent.jar -Djava.awt.headless=true -Djdk.attach.allowAttachSelf=true -Xmx2048m -Xms1024m -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.port=9000 -Djava.rmi.server.hostname=x.x.x.x -Xjit:exclude={com/ibm/ws/*} -javaagent:/home/cavisson/netdiagnostics/lib/ndmain.jar=time,ndAgentJar=/home/cavisson/netdiagnostics/lib/ndagent-with-dep.jar,ndHome=/home/cavisson/netdiagnostics,logInstrCode=1 -Dorg.osgi.framework.bootdelegation=com.cavisson.ndutils -jar /opt/IBM/WebSphere/Liberty/bin/tools/ws-server.jar defaultServer

1
javawebspherewebsphere-libertyjavaagents

1 Answers

1
votes

This sounds like a probably Java/JIT bug, not anything you did wrong or something that you could fix with configuration or setup. You could try a more recent Java version, in case this problem has been found and fixed already. Otherwise, you should open a bug or PMR against IBM Java, so development can gather the necessary information to work the issue.