[
http://jira.jboss.com/jira/browse/JBCACHE-37?page=comments#action_12314997 ]
Andrew May commented on JBCACHE-37:
-----------------------------------
Firstly, could I ask whether this is still being looked at in light of my
previous comment? If so, could you re-open the bug.
I've been trying to see if using more recent versions of various parts of the
code (jboss-cache, javaassist, jboss-aop etc.) would help, but they don't, and
now that I look at where the stack overflow is occuring, I can see how it
happens (if not why).
JBossClassPool extends AOPClassPool extends ClassPool (from javaassist).
In JBossClassPool.toClass(CtClass, ClassLoader) (which overrides the method in
ClassPool):
public Class toClass(CtClass cc, ClassLoader loader)
throws CannotCompileException
{
if (dcl == null || tempdir == null)
{
return super.toClass(cc);
}
In ClassPool.toClass(CtClasss):
public Class toClass(CtClass clazz) throws CannotCompileException {
return toClass(clazz, Thread.currentThread().getContextClassLoader());
}
Therefore, if either dcl or tempdir are null in JBossClassPool a Stack Overflow
is, I think, inevitable.
Any ideas how/why this happens?
-Andrew
> Stack Overflow when using Collection classes in TreeCacheAop
> ------------------------------------------------------------
>
> Key: JBCACHE-37
> URL: http://jira.jboss.com/jira/browse/JBCACHE-37
> Project: JBoss Cache
> Type: Bug
> Versions: 1.2
> Environment: JBoss 4.0.1, JDK 1.5 (and also 1.4.2), Linux (Mandrake 10.0)
> Reporter: Andrew May
> Assignee: Ben Wang
> Fix For: 1.2.1
> Attachments: cachetest.jar, cachetest.zip, jboss-aop.xml, project.zip,
> treeCacheAop-service.xml
>
>
> Stack overflow when calling TreeCacheAop.putObject(Fqn, Object) for an
> aspectized object that contains a Collection class (tested with HashSet,
> ArrayList and HashMap):
> Thread [http-0.0.0.0-7001-Processor25] (Suspended (exception
> java.lang.StackOverflowError))
>
> org.jboss.aop.deployment.JBossClassPool(javassist.ClassPool).toClass(javassist.CtClass)
> line: 713
> ...
> org.jboss.aop.deployment.JBossClassPool.toClass(javassist.CtClass,
> java.lang.ClassLoader) line: 50
>
> org.jboss.aop.deployment.JBossClassPool(javassist.ClassPool).toClass(javassist.CtClass)
> line: 713
> org.jboss.aop.deployment.JBossClassPool.toClass(javassist.CtClass,
> java.lang.ClassLoader) line: 50
>
> org.jboss.aop.deployment.JBossClassPool(javassist.ClassPool).toClass(javassist.CtClass)
> line: 713
> org.jboss.aop.deployment.JBossClassPool.toClass(javassist.CtClass,
> java.lang.ClassLoader) line: 50
> javassist.CtNewClass(javassist.CtClass).toClass() line: 1000
> org.jboss.aop.proxy.ClassProxyFactory.generateProxy(java.lang.Class)
> line: 138
> org.jboss.aop.proxy.ClassProxyFactory.newInstance(java.lang.Class)
> line: 52
>
> org.jboss.cache.aop.CollectionInterceptorUtil.getMethodMap(java.lang.Class)
> line: 50
>
> org.jboss.cache.aop.CachedSetInterceptor.<init>(org.jboss.cache.aop.TreeCacheAop,
> org.jboss.cache.Fqn, java.lang.Class) line: 41
> org.jboss.cache.aop.TreeCacheAop._putObject(org.jboss.cache.Fqn,
> java.lang.Object) line: 372
> org.jboss.cache.aop.TreeCacheAop._putObject(org.jboss.cache.Fqn,
> java.lang.Object) line: 265
> org.jboss.cache.aop.TreeCacheAop.putObject(org.jboss.cache.Fqn,
> java.lang.Object) line: 130
> Originally this was happening within our application, but I've managed to
> write a simple test bean that demonstrates the problem.
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