How to Debug JSP in Websphere 3.5 ?? Urgent

Hi,
can somebody help me debuuging JSP in Websphere Application server 3.5 .Remember I dont have
Websphere Studio or any other tool.any help in this regard is appreciated.
Thanks
Jack

In most cases, you can debug an application by using the old standby of printing status lines after each significant chunk of code. For example, you can always output the page's parameters to make sure you've received what you think you've received.
In the cases that Java throws an exception, you can make a rough guess as to what the problem is, based on the exception. A NumberFormatException usually occurs when you try to convert a letter into a number. The original intent would be to take a string "10" and convert that into the integer 10. SQL Exceptions are a little more vague, but again, you can at least narrow down the problem.
Specific debuggers, while nice to have, are not really necessary. Through experience, and trial and error, you will eventually discover (and remember) the most common kinds of errors and how to avoid them.
As a general rule, until you become proficient, always code a little chunk of the application at a time, and test that chunk to make sure it's working properly. It's far easier to track down a bug if you know it's somewhere in a dozen lines of code that you wrote that morning.
If you are using Internet Explorer, you may want to confirm that Explorer is not giving you "friendly error messages". You can check this in the tools->internet options->advanced dialog box. By default, IE hides specific error messages, including JSP errors, because Microsoft rightly feels that your grandmother would just get confused.

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    Hi,
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    J sun.dc.pr.PathFiller.writeAlpha8([BIII)V
    J sun.java2d.pipe.DuctusRenderer.getAlpha(Lsun/dc/pr/Rasterizer;[BIII)V
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    J sun.java2d.pipe.PixelToShapeConverter.fillRoundRect(Lsun/java2d/SunGraphics2D;IIIIII)V
    J sun.java2d.SunGraphics2D.fillRoundRect(IIIIII)V
    J writingplatform.PlatformNode.paintComponent(Ljava/awt/Graphics;)V
    J writingplatform.TextNode.paintComponent(Ljava/awt/Graphics;)V
    J writingplatform.PlatformPanel.paintComponent(Ljava/awt/Graphics;)V
    J javax.swing.JComponent.paint(Ljava/awt/Graphics;)V
    J javax.swing.JComponent.paintWithOffscreenBuffer(Ljavax/swing/JComponent;Ljava/awt/Graphics;IIIILjava/awt/Image;)V
    J javax.swing.JComponent.paintDoubleBuffered(Ljavax/swing/JComponent;Ljava/awt/Component;Ljava/awt/Graphics;IIII)Z
    J javax.swing.JComponent._paintImmediately(IIII)V
    J javax.swing.JComponent.paintImmediately(IIII)V
    J javax.swing.RepaintManager.paintDirtyRegions()V
    J javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run()V
    J java.awt.event.InvocationEvent.dispatch()V
    J java.awt.EventQueue.dispatchEvent(Ljava/awt/AWTEvent;)V
    J java.awt.EventDispatchThread.pumpOneEventForHierarchy(ILjava/awt/Component;)Z
    v ~RuntimeStub::alignment_frame_return Runtime1 stub
    j java.awt.EventDispatchThread.pumpEventsForHierarchy(ILjava/awt/Conditional;Ljava/awt/Component;)V+26
    j java.awt.EventDispatchThread.pumpEvents(ILjava/awt/Conditional;)V+4
    j java.awt.EventDispatchThread.pumpEvents(Ljava/awt/Conditional;)V+3
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    --------------- P R O C E S S ---------------
    Java Threads: ( => current thread )
    0x000360c0 JavaThread "DestroyJavaVM" [_thread_blocked, id=696]
    =>0x00acae38 JavaThread "AWT-EventQueue-0" [_thread_in_native, id=2716]
    0x00ac5530 JavaThread "AWT-Windows" daemon [_thread_in_native, id=3396]
    0x00ac50b0 JavaThread "AWT-Shutdown" [_thread_blocked, id=2656]
    0x00ac3eb8 JavaThread "Java2D Disposer" daemon [_thread_blocked, id=1644]
    0x00a6ef28 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=408]
    0x00a6dc28 JavaThread "CompilerThread0" daemon [_thread_blocked, id=992]
    0x0003fda0 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=1756]
    0x00a42240 JavaThread "Finalizer" daemon [_thread_blocked, id=2156]
    0x00a40d58 JavaThread "Reference Handler" daemon [_thread_blocked, id=328]
    Other Threads:
    0x00a3e460 VMThread [id=3024]
    0x00a702a8 WatcherThread [id=1740]
    VM state:not at safepoint (normal execution)
    VM Mutex/Monitor currently owned by a thread: None
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    def new generation total 576K, used 20K [0x22a70000, 0x22b10000, 0x22f50000)
    eden space 512K, 2% used [0x22a70000, 0x22a73220, 0x22af0000)
    from space 64K, 12% used [0x22af0000, 0x22af2128, 0x22b00000)
    to space 64K, 0% used [0x22b00000, 0x22b00000, 0x22b10000)
    tenured generation total 1408K, used 435K [0x22f50000, 0x230b0000, 0x26a70000)
    the space 1408K, 30% used [0x22f50000, 0x22fbcd10, 0x22fbce00, 0x230b0000)
    compacting perm gen total 8192K, used 388K [0x26a70000, 0x27270000, 0x2aa70000)
    the space 8192K, 4% used [0x26a70000, 0x26ad1170, 0x26ad1200, 0x27270000)
    ro space 8192K, 67% used [0x2aa70000, 0x2afcd9f8, 0x2afcda00, 0x2b270000)
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    0x77c10000 - 0x77c68000      C:\WINDOWS\system32\MSVCRT.dll
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    0x6d2f0000 - 0x6d2f8000      C:\Program Files\Java\jdk1.5.0_07\jre\bin\hpi.dll
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    0x6d070000 - 0x6d1d7000      C:\Program Files\Java\jdk1.5.0_07\jre\bin\awt.dll
    0x73000000 - 0x73026000      C:\WINDOWS\system32\WINSPOOL.DRV
    0x76390000 - 0x763ad000      C:\WINDOWS\system32\IMM32.dll
    0x774e0000 - 0x7761d000      C:\WINDOWS\system32\ole32.dll
    0x5ad70000 - 0x5ada8000      C:\WINDOWS\system32\uxtheme.dll
    0x73760000 - 0x737a9000      C:\WINDOWS\system32\ddraw.dll
    0x73bc0000 - 0x73bc6000      C:\WINDOWS\system32\DCIMAN32.dll
    0x73940000 - 0x73a10000      C:\WINDOWS\system32\D3DIM700.DLL
    0x6d2b0000 - 0x6d2ef000      C:\Program Files\Java\jdk1.5.0_07\jre\bin\fontmanager.dll
    0x74720000 - 0x7476b000      C:\WINDOWS\system32\MSCTF.dll
    0x7c9c0000 - 0x7d1d5000      C:\WINDOWS\system32\shell32.dll
    0x77f60000 - 0x77fd6000      C:\WINDOWS\system32\SHLWAPI.dll
    0x773d0000 - 0x774d2000      C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.2180_x-ww_a84f1ff9\comctl32.dll
    0x5d090000 - 0x5d127000      C:\WINDOWS\system32\comctl32.dll
    0x605d0000 - 0x605d9000      C:\WINDOWS\system32\mslbui.dll
    0x77120000 - 0x771ac000      C:\WINDOWS\system32\OLEAUT32.DLL
    0x6d530000 - 0x6d543000      C:\Program Files\Java\jdk1.5.0_07\jre\bin\net.dll
    0x71ab0000 - 0x71ac7000      C:\WINDOWS\system32\WS2_32.dll
    0x71aa0000 - 0x71aa8000      C:\WINDOWS\system32\WS2HELP.dll
    0x6d550000 - 0x6d559000      C:\Program Files\Java\jdk1.5.0_07\jre\bin\nio.dll
    0x6d230000 - 0x6d253000      C:\Program Files\Java\jdk1.5.0_07\jre\bin\dcpr.dll
    VM Arguments:
    java_command: writingplatform.Main
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    CLASSPATH=C:\Program Files\Java\jre1.5.0_05\lib\ext\QTJava.zip
    PATH=C:\Program Files\Microsoft DirectX 9.0 SDK (August 2005)\Utilities\Bin\x86;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\ATI Technologies\ATI Control Panel;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\SSH Communications Security\SSH Secure Shell
    USERNAME=Wanderer
    OS=Windows_NT
    PROCESSOR_IDENTIFIER=x86 Family 15 Model 2 Stepping 9, GenuineIntel
    --------------- S Y S T E M ---------------
    OS: Windows XP Build 2600 Service Pack 2
    CPU:total 2 family 15, cmov, cx8, fxsr, mmx, sse, sse2, ht
    Memory: 4k page, physical 1047764k(366012k free), swap 2518724k(2059484k free)
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