Hi Kiran,
Following is the steps for debugging the portal application.
<b>Steps for Debugging</b>
<i><b>1. Stop the Portal Server if Running.</b></i>
<i>
<b>2. Launch the Config tool of J2EE Engine & Set Up the debugging of the current instance.</b></i>
 The Config tool is located in the directory ,
<J2EE-Install-Dir>\JC00\j2ee\configtool\configtool.bat
 Switch to the current instance & go to the debug tab.
 Set “Enable Debug Mode” checked, start the VM of J2EE in debug mode.
 Set a valid debug port, default port is 50021.
 Save the settings and restart the J2EE Engine.
<i><b>3. Restart the Portal Server.</b></i>
<i><b>4. Open SAP Netweaver Developer Studio.</b></i> Go to Window --- > Open Perspective --- > Enterprise Portal & also open the Debug perspective.
 This enables you to develop & deploy EP Components to your development Portal.
<i><b>5. Configure Development Environment for Debugging.</b></i>
 Create new Remote Java Application debug settings.
 Pressing the debug button attaches the SAP Netweaver Developer Studio to the Specified portal installation.
 Go to Debug --- > Remote Java Application & create a new setting for your current Portal Application Project.
 Insert the portals DNS or IP Address and the debug port specified in the Config tool, default port is 50021.
 If the portal runs on the local machine you can enter localhost instead of IP address or DNS name.
 Make sure that your Portal Application is already deployed in the portal.
<i><b>6. If the connection is attached to the J2EE engines VM session, the SAP Netweaver Studio is ready to debug.</b></i>
<u><b>BREAKPOINTS</b></u>
<i>A Breakpoint causes the execution of a program thread to suspend at the location here the breakpoint is set.</i>
<i><b>7. Set a breakpoint in your custom coding. The debugger will stop if the VM reaches this marked code line.</b></i>
To enable the breakpoint,
 Locate the breakpoint in the marker bar of an editor.
 Open the breakpoint’s context menu & select ‘Enable Breakpoint’.
 The breakpoint image will change back to a blue circle.
<b>VARIABLE VIEW</b>
<i>The “variables view” contains information about the variables in the currently-selected stack frame.</i>
<i><b>8. To Launch the Variables View :,</b></i>
Choose Window -- > Show View -- > Other -- > Select Debug -- > Variables View.
<i><b>9. Force the Portal to execute your deployed coding.</b></i> The VM stops at the specified break point.
10. The current values of the member variables can be tracked in the “Variables” window of SAP Netweaver Developer Studio.
<i><b>** Reward points if you find this Post Useful & Helpful.</b></i>
<i>Regards,
Eben.</i>
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