String buffer's Append method is not working

Hi,
I am creating an application which uses AbstractPortal component. In the doContent() method , i am reading an XML file using buffered reader and appending the character by Charater from the XML file to an buffer String.It's not showing any error in the Eclipse , but if i try to run the application it shows the an error in the <i><b>buffer.append</b></i> statement.
The error is
java.lang.StringBuffer.append(C)Ljava/lang/Appendable;.
Exception id: 10:55_12/03/06_0027_38431050
See the details for the exception ID in the log file

Hi Saravanan,
I Understand your logic,i was doing the same but it never worked for me.
In AbstractPortalComponent ,the request object is passed as parameter to the do methods.
http://help.sap.com/saphelp_nw04/helpdata/en/9b/ff3c41325fa831e10000000a1550b0/content.htm
You need to access the original ServletRequest() of this request to process further.
In my opinion,problem is not in buff.append.if you see it in debug you can see that (char)i itself null or something.
For a change try my code and see what kind of parameters your ServletRequest()has.
Good luck

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Hi
Thanks for your reply. Actually i wrote simple applets and those are working well.
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From: Adobe Forums <[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>
Date: Sun, 27 Nov 2011 22:48:35 -0800
To: Leonard Rosenthol <[email protected]<mailto:[email protected]>>
Subject: exportAsFDF javascript method is not working with Reader 10.1.1
exportAsFDF javascript method is not working with Reader 10.1.1
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Hi
Thanks for your reply. Actually i wrote simple applets and those are working well.
So i did debug the code and i found that when i am running the following code in Apple MAC IE, nothing is happening in handleEvent method. Especially it is not going into the if statement (if (evt.id==401)). here i am checking for KEY_PRESS. I also tried with keyDown method but same problem in MAC IE.
I am pasting the code that is giving me problem.
import java.awt.*;
import java.applet.*;
public class testApplet extends Applet
public void init()
setLayout(new BorderLayout());
editableArea = new EditableArea();
editableArea.setBackground(Color.yellow);
add("Center", editableArea);
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import java.awt.*;
public class EditableArea extends Canvas
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if (evt.id==401)
if(evt.key >= 32 && evt.key <= 255)
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