Re: [aspectj-users] Possible synchronization problem in org.aspectj.weav

["Andy Clement" <andrew.clement@xxxxxxxxx>]

tell me the fix and I will look at putting it in.

Andy.

On 07/02/2008, Scott Bartram <scottb@xxxxxxxxxxxx> wrote:
>
> I have a VM in a cluster that will sometimes stop taking work.  The
> thread dump shows that one thread is holding a lock in Spring code and
> blocking all the other threads.  The blocking thread appears to be
> stuck in an infinite loop in java.util.WeakHashMap.
>
> It appears that there is no synchronization of access to the
> org.aspectj.weaver.World$TypeMap.expendableMap which can cause
> corruption and the WeakHashMap.get() method to go into an infinite
> loop - at least on the IBM 1.5 JVM.  We've seen and fixed this
> behavior before in other code (eg. Sun's javax.el implementation).
>
>
> State : Waiting on condition
> Owns Monitor Lock on
> java/util/concurrent/ConcurrentHashMap@58574E90/58574E9C
> Java Stack
> at java/util/WeakHashMap.get(WeakHashMap.java:362(Compiled Code))
> at org/aspectj/weaver/World$TypeMap.get(World.java:967(Compiled Code))
> at org/aspectj/weaver/World.resolve(World.java:250(Compiled Code))
> at org/aspectj/weaver/World.resolve(World.java:191(Compiled Code))
> at org/aspectj/weaver/World.resolve(World.java:338(Compiled Code))
> at org/aspectj/weaver/internal/tools/
> PointcutExpressionImpl
> .couldMatchJoinPointsInType(PointcutExpressionImpl.java:76(Compiled
> Code))
> at org/springframework/aop/aspectj/
> AspectJExpressionPointcut.matches(AspectJExpressionPointcut.java:
> 218(Compiled Code))
> at org/springframework/aop/support/AopUtils.canApply(AopUtils.java:
> 189(Compiled Code))
> at org/springframework/aop/support/AopUtils.canApply(AopUtils.java:
> 244(Compiled Code))
> at org/springframework/aop/support/
> AopUtils.findAdvisorsThatCanApply(AopUtils.java:278(Compiled Code))
> at org/springframework/aop/framework/autoproxy/
> AbstractAdvisorAutoProxyCreator
> .findEligibleAdvisors(AbstractAdvisorAutoProxyCreator.java:83(Compiled
> Code))
>
>
> _______________________________________________
> aspectj-users mailing list
> aspectj-users@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/aspectj-users
>