problem with using pojo cache with other application server

jasonhu919 Jun 2, 2008 4:43 PM

I was able to work out a standalone, simple Hello world of the pojo cache in netbeans. pretty easy and simple.
then I tried to make it work in oracle OC4J. I was not even able to start the server with javaagent option, I got this exception:

java.lang.NoClassDefFoundError: javassist/scopedpool/ScopedClassPoolFactory
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
at java.lang.Class.getMethod0(Class.java:2670)
at java.lang.Class.getMethod(Class.java:1603)
at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:294)
at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:338)

I guess current aop imlementation can't tap into the oc4j classloader.
here is my simple start script

for i in /lib/*.jar
do
POJO_CLASSPATH="$POJO_CLASSPATH:${i}"
done
java -javaagent:/lib/jboss-aop.jar -Djboss.aop.path=/config/pojocache-aop.xml -classpath $POJO_CLASSPATH -jar oc4j.jar

1. update on my own issue. Re: problem with using pojo cache wi

jasonhu919 Jun 3, 2008 12:09 AM (in response to jasonhu919)

update on my own issue.

I made it work with AOP precompilation instead of using javaagent.
of course, I had to get over some hurdles of the jar library issue in oc4j.
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2. Re: problem with using pojo cache with other application ser

jason.greene Jun 3, 2008 11:35 AM (in response to jasonhu919)

The above error means you are missing javassist.jar from the agent classpath, or some other jar it requires
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3. Re: problem with using pojo cache with other application ser

jasonhu919 Jun 4, 2008 1:39 AM (in response to jasonhu919)

i knew the missing class it was complaining about is in javassist.jar file, and I made sure all the jars are in the classpath, that was the basic step everyone would do.

finally, i opened oc4j.jar of oc4j, i noticed it used some special way of load all the library jar in the boot xml.

anyway, AOP precompilation worked like a charm.
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