I have a web aplication I developed in JBoss-2.4.4_Tomcat-3.2.3 with jdk1.3

Now I need to use jdk1.4 or higher but when using jdk1.4 with
JBoss-2.4.4_Tomcat-3.2.3 I get this error:

[INFO,Default] JBoss-2.4.4 Started in 0m:12s.188
[INFO,Default] View Requested: login

Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x6D366658
Function=[Unknown.]
Library=C:\Program Files\Java\j2re1.4.0_01\bin\client\jvm.dll

NOTE: We are unable to locate the function name symbol for the error
just occurred. Please refer to release documentation for possible
reason and solutions.
The ear and war file is deploying without error but when a request comes through is bombs out.

I have tried using JBoss 4 but then I get errors when deploying the war file.

The reason I need to port to a newer version is because jdk1.3's printing is very slow and it is fixed in 1.4 and above.

Can anyone tell me how to go around this problem, please!