java.lang.ClassCircularityError

[kuba.nowakowski]

Hi

While using jboss 3.0.0 extensivly i'm getting this strange error with diffrent classes ( for example java.util.HashMap )
this always happens in ejbCreate

it appears on W2K and linux redhat 7.2 both with jdk 1.3.1 and 1.4

my ejbs are proccessing some messages

if after start jboss and increase number of concurrent messages slowly ( like 1 , 2, 3 .. )
everything is ok

but if after restart of jboss i send for 100 messages
i get this strange error

i'm using several diffrent session beans
and getting this error all of them

Kuba

[kuba.nowakowski]

i attached stack trace for this kind of error

[adrian.brock]

I believe there is a workaround in latest CVS,
but this is really a bug in the JVM. It has been
reported to Sun.

Regards,
Adrian

[adrian.brock]

I believe there is a workaround in latest CVS,
but this is really a bug in the JVM. It has been
reported to Sun.

Regards,
Adrian

[kuba.nowakowski]

Hi

The problem is still there!!!

maybe it should be changed rather then waiting for Sun to patch this??

Regards

Adrian

[adrian.brock]

Do you have something that can reproduce the problem?

Like I said above, there is a workaround in latest CVS,
if you have something that breaks the workaround
can you provide it?

Regards,
Adrian

[kuba.nowakowski]

Hi
about which current version are you talking?
in Branch_3_0 ( 2 days ago ) i can reproduce the problem every time

can you tell me where exacatly in the code is the problem or workaround?

Thanks in advance
Kuba

ps. this problem really boder me
i'm getting nervous 8-)

[adrian.brock]

The bug is in Sun's VM.

The workarounds are here:

http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/jboss/jmx/src/main/org/jboss/mx/loading/UnifiedLoaderRepository.java

http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/jboss/jmx/src/main/org/jboss/mx/loading/UnifiedLoaderRepository2.java

If you look on the "Downloads" link, it recommends
using jrockit rather than Sun's VM.

Regards,
Adrian

[kuba.nowakowski]

Hi

i check it out

i would have eaten my fingers without your help;
i now the problem is in Sun JVM;

i now also jrockit but it's not open source solution;

regards

Kuba

[kuba.nowakowski]

hi

i tried with this classes and it didn't help

i try to make simple application to show you this error

Kuba