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12.7. JRockit

JRockit also supports the -javaagent switch mentioned in Section 12.6, “Loadtime transformation in the JBoss Enterprise Application Platform Using Sun JDK”. If you wish to use that, then the steps in Section 12.6, “Loadtime transformation in the JBoss Enterprise Application Platform Using Sun JDK” are sufficient. However, JRockit also comes with its own framework for intercepting when classes are loaded, which might be faster than the -javaagent switch. If you want to do load-time transformations using the special JRockit hooks, these are the steps you must take.
  • Set the enableLoadtimeWeaving attribute/property to true. By default, JBoss Enterprise Application Platform will not do load-time bytecode manipulation of AOP files unless this is set. If suppressTransformationErrors is true, failed bytecode transformation will only give an error warning. This flag is needed because sometimes a JBoss deployment will not include all the classes referenced.
  • Copy the jrockit-pluggable-instrumentor.jar from the lib/ directory of your JBoss AOP distribution to the bin/ directory of your the JBoss Enterprise Application Platform installation.
  • Next edit run.sh or run.bat (depending on what OS you are on) and add the following to the JAVA_OPTS and JBOSS_CLASSPATH environment variables: 
    # Setup JBoss specific properties

JAVA_OPTS="$JAVA_OPTS -Dprogram.name=$PROGNAME \

-Xmanagement:class=org.jboss.aop.hook.JRockitPluggableClassPreProcessor"

JBOSS_CLASSPATH="$JBOSS_CLASSPATH:jrockit-pluggable-instrumentor.jar"
    Copy to Clipboard Toggle word wrap
  • Set the class of the AspectManager Service to org.jboss.aop.deployers.AspectManagerJRockit on JBoss Enterprise Application Platform 5, or org.jboss.aop.deployment.AspectManagerService as these are what work with special hooks in JRockit.
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