Dump in WSAD 5.1.1

Hi guys,
I have a problem with WSAD 5.1.1 when a try to run two test
environment in debug mode.
I have to test server environments 5.1 and when I try to
debug I have a server crach generating the following stacktrace:

[b]Unhandled exception
Type=GPF vmState=0xffffffff
Target=20030915 (Windows XP 5.1 build 2600 Service Pack 1 x86)
ExceptionCode=0xc0000005 ExceptionAddress=0x10307094 ContextFlags=0x0001003f
Handler1=0x111016c0 Handler2=0x10019730
Module=C:\Program Files\IBM\WebSphere Studio\Application Developer\v5.1.1\runtimes\base_v51\java\jre\bin\j9dbg21.dll
EDI=0x0003f8f0 ESI=0x00008000 EAX=0x07dc5490
EBX=0x0008c900 ECX=0x0027eb28 EDX=0x00080608
EBP=0x0003f8f0 ESP=0x041cfd2c EIP=0x10307094

Generating crash dump: C:\Documents and Settings\308314\j9.dmp

Thread: Debug response server (priority 10) (daemon) (LOCATION OF E[/b]

This produces when a put a break point on some big classes but I do not
understand why.

I use JDK 1.4.2_8 and a standard JRE 1.4.
I use WSAD 5.1.1 on Widnows XP Professional.

Did you have similar problems and have you some idea what is wrong?

Thank you.


I have the same problem. Did you find the reason for this problem? Or even better the solution or a workaround?

Any help would be greatly appreciated.

Kind regards,


I renamed that dll without any apparent ill effects

Even i was facing the same problem many times.
Pls let me know if anyone has got the solution.

I have the same problem. Did you find the reason for this problem?

Just for information: I had this error. It is a desynchronization between websphere debugger and source code or compiled code (.class)

The only solution I found is to create another workspace.


try this:

scan the directory above to verify any virus
C:\Documents and Settings\ex000458\Application Data\Sun

Security Vulnerability With Java Web Start

see this url:

I have renamed the javaws.exe and removed the “.jnpl” filetype and
now WSAD work very well

ciao Lorenzo

Try This:

Go to Debug mode of WSAD…

Upper left corner you will have 3 tabs. Select the Debug one.

You will find all running servers. Select each one and right click on it.

You wll find an option ‘Terminate and Remove’… Do for all Servers.

Then start your server in debug mode.

Hope this will work…


I don’t speak English very well and i give us my response in French.

J’avais le meme pb crash dump :
version WSAD 5.1.1, mode Debug …

Dans la configuration du serveur j’ai décoché l’onglet “Activer la methode de remplacement a chaud en mode debogage”.

Cette action a résolu mon pb ainsi que celui de mes collègues.

Good luck and Bye