debugging in NWDS

[Former Member]

Hi,

I am trying to debug an application.

I have built the project and exported into a war file.

Later I uploaded it to Webconsole and deployed to the MI client.

I try to debug the application,the mi client is launched.

I login and try to access the application. As soon the break point that I have inserted becomes active

the application hangs. I am not able to use the functions Step into,Step over etc. Is there any problem in the way that I have built or is there something called building in debug mode.

Regards

Raja Sekhar

[Former Member]

Hi Kishore

When I am building the application, I get an error that Obsolete methods on the stack.

The reason displayed is : Virtual machine was unable to remove all stack frames from the old code. The virtual machine is not supplying the debugger with valid data for those frames.

I dont know what this virtual machine is and how to remove the error. I guess that is the reason I am unable to debug the app. Please let me know as to how I can increase the vm size

Regards

Raja Sekhar

[kishorg]

Hi Raja,

have u created a new application or migrated that one developed in SP 9 into this version of studio?.

In the virtual parameters part give this.

-Xms384m -Xmx384m -XX:NewSize=128m -XX:MaxNewSize=128m

and refer this also ..

http://java.sun.com/docs/hotspot/PerformanceFAQ.html

U have to give..

"-home:C:\Program Files\SAP Mobile Infrastructure" -trace -url:<Your application name>/start -app:jsp in the Program Arguments part.

try this. im not sure. we have not faced a situation like this.

Regards

Kishor Gopinathan

[Former Member]

hello raja,

this problem is not specific to NWDS but this sometimes

occurs in Eclipse. try closing other projects and restarting

you IDE. try also editing the VM related parameters for NWDS

such as -Xmx512m and -Xms256m which is located in the

vm.parameters file in eclipse folder of your JDT installation.

when your eclipse does not update your debug threads, try

refreshing your debug view by switching to java perspective

then again back to debug perspective. or try pressing F5

once...

regards

jo

[Former Member]

hi Raja,

Take a look at this link.<a href="http://media.sdn.sap.com/public/html/submitted_docs/MI/MDK_2.5/content/eclipse/debuggingineclipse.html">Debug JSP applications on the Fly!</a>

Hope that solves!

Regards

ak

[kishorg]

Hi Raja,

it might be bcoz of the lack of memory available in your system. i think so.

hope u have followed this blog.

/people/arunkumar.ravi/blog/2006/02/22/execute-debug-your-mi-code-from-nwds

i have one suggestion , just close other applications , that u r currently running. increase the VM size of your system..

then put proper VM parameters in teh Arguments tab of Debug window..

refer

http://www.caucho.com/resin-3.0/performance/jvm-tuning.xtp .. im not sure...

Regards

Kishor Gopinathan