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IBM 1.5r2 VM locks up compiling JSP

 
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Andy Brook
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PostPosted: Mon Oct 09, 2006 2:29 pm    Post subject: IBM 1.5r2 VM locks up compiling JSP Reply with quote



Hi all,
low volume news group this!

Anyhow, I was wondering if anyone else has come across the IBM VM totally
locking up during a JSP page compilation. I've traced it to an included
JSP fragment that generates about 6 lines of HTML. Many other apps I have
are fine. The fragment in question is based on struts and jstl.

The application works fine running on WAS5.1 (ibm 1.4.2 vm), but the
fragment takes *5* minutes to compile on WAS6.1 (ibm 1.5r2 vm), and goes
away forever using JBOSS 4.0.3 (ibm 1.5r2 vm).

Of course, the application works fine under the SUN vm, so I
think this may be a bug with IBMs implementation?

Has anyone ever seen this?

Appreciate any replies (to the 9 of you who posted this year :)

andy
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SaketR
Guest





PostPosted: Wed Nov 22, 2006 4:19 am    Post subject: Re: IBM 1.5r2 VM locks up compiling JSP Reply with quote



If you have a tight loop in a method that is doing all the work, then
consider making calls to that method few times first, before getting into a
tight loop, by applying some refactoring. May or may not help, but worth a
try (difficult to confirm without looking at the source).

Warm regards,
Saket

Andy Brook wrote:
Quote:
Hi all,
low volume news group this!

Anyhow, I was wondering if anyone else has come across the IBM VM
totally locking up during a JSP page compilation. I've traced it to
an included JSP fragment that generates about 6 lines of HTML. Many
other apps I have are fine. The fragment in question is based on
struts and jstl.

The application works fine running on WAS5.1 (ibm 1.4.2 vm), but the
fragment takes *5* minutes to compile on WAS6.1 (ibm 1.5r2 vm), and
goes away forever using JBOSS 4.0.3 (ibm 1.5r2 vm).

Of course, the application works fine under the SUN vm, so I
think this may be a bug with IBMs implementation?

Has anyone ever seen this?

Appreciate any replies (to the 9 of you who posted this year :)

andy
Back to top
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