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| APAR IY77292 Changing classLoader behaviour |
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| powerlord |
 Posted: Mon Jan 23, 2006 8:28 am Post subject: APAR IY77292 Changing classLoader behaviour |
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Novice
Joined: 02 Sep 2005
Posts: 19
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OS: XP SP2
MBv6
Developing custom java nodes with Message Broker v6, I came across the problem outlined and fixed in APAR IY77292.
I installed this APAR (bootstrap.jar) and found that this indeed fixed the problem of the MB JVM not resolving external jar dependancies.
However, although the APAR fixes this problem it appears to change the JVM classloader behaviour which actually breaks another piece of my code:
We have a custom java input node built. This is triggered via a dll using JNI to callback into the MB JVM. When it registers this callback at broker startup/flow instantiation, the JVM tries to resolve the class and method (standard JNI callback). This fails with a classNotFound Exception (visible by making the broker run in the foreground so that I can see standard error, etc)
If all I do, is now replace the bootstrap.jar with the original one (and not the one in the APAR above), the JNI callback registers successfully.
Therefore, it appears that this bootstrap.jar is somehow changing the classloader behaviour in the JVM so that it does not have access to the CLASSPATH anymore ?
Anybody any ideas ? Preferably some Hursely bloke who change bootstrap.jar in the first place ?
stu |
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| mvic |
| Posted: Mon Jan 23, 2006 9:50 am Post subject: Re: APAR IY77292 Changing classLoader behaviour |
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Jedi
Joined: 09 Mar 2004
Posts: 2080
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| powerlord wrote: |
Therefore, it appears that this bootstrap.jar is somehow changing the classloader behaviour in the JVM so that it does not have access to the CLASSPATH anymore ?
Anybody any ideas ? Preferably some Hursely bloke who change bootstrap.jar in the first place ? |
Have you raised a new PMR? If you provide such a clear outline of the problem as above, it should quickly make it to the right people. |
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| powerlord |
| Posted: Tue Jan 24, 2006 12:56 am Post subject: |
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Novice
Joined: 02 Sep 2005
Posts: 19
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yup, I raised one yesterday. But thought I'd post on here too, just in case it reaches someone who has solved it some other way.
cheers.
stu |
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| ydsk |
| Posted: Wed Jan 25, 2006 10:17 am Post subject: |
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Chevalier
Joined: 23 May 2005
Posts: 410
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Hi Powerlord,
We had a similar situation. We have a java custom node but no JNI. We raised a PMR and still working on it.
Please don't forget to post the resolution for the issue clearly after your PMR is resolved. I will do the same for the benefit of the readers in this forum.
Thanks.
ydsk. |
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