Java Programming

Hi!

Here is a short description of my situation :- I need to add a line of text ( A signature) to a Word document( downloaded from a server) at the end of a range. I am able to do this correctly as a standalone application. But the actual functionality needs to be invoked from an applet( I do not have any security issues, since i have signed the applet). This method runs in a separate thread that is spawned from the main applet's init method : Here is the code for the same -

class ESignThread extends Thread
	{
        

        @Override
		public void run()
		{
			synchronized(_threadLockES)
			{
				while( true )
				{
					try
					{
						_threadLockES.wait();


				String durl=url+"download_doc.php?filename="+_launchPathES;
 				String tmpDir = "Undefined";

								tmpDir = System.getProperty("java.io.tmpdir");
                                File tmpEs = new File(tmpDir+"Esd");
                                                            
                                                                tmpEs.mkdir();
	                        BufferedInputStream in = new BufferedInputStream(new java.net.URL(durl).openStream());
                          	FileOutputStream fos = new FileOutputStream(tmpDir+_launchPathES);
	                        BufferedOutputStream bout = new BufferedOutputStream(fos,1024);
                                InputStream input = new FileInputStream(new File(tmpDir+_launchPathES));
                                OutputStream op   = new FileOutputStream(new File(tmpEs+"\\"+_launchPathES));
                                File EsignedFile = new File(tmpEs+"\\"+_launchPathES);
	                                              byte data[] = new byte[1024];
								while(in.read(data,0,1024)>=0)
								{
									bout.write(data);
								}
								bout.close();
								in.close();

                                HWPFDocument testWord = new HWPFDocument(input);
                                org.apache.poi.hwpf.usermodel.Range r = testWord.getRange();
                                String DATE_FORMAT_NOW = "yyyy-MM-dd HH:mm:ss";
                                String TimeNow=null;
                                Calendar cal = Calendar.getInstance();
                                SimpleDateFormat sdf = new SimpleDateFormat(DATE_FORMAT_NOW);
                                TimeNow=sdf.format(cal.getTime());


                                System.out.println(testWord.characterLength());
                     r.insertAfter("\r\n This document has been Electronically Signed by Erica  Green, MD on " +TimeNow +"."  );

                   System.out.println(testWord.characterLength());

                   testWord.write(op);


                   input.close();
                   op.close();

                   upLoad(EsignedFile) ;


					}
					catch( Exception ex )
					{
						System.out.println( "Exception in E-Sign Thread " + ex.getMessage() );
					}
				}
			}

                 }
	} 

What I am actually doing is downloading the file from a server(using PHP), writing it to a output stream. Then associating it with a File object( and an input stream), creating a HWPF document, getting the range and using the insertAfter() function, and then writing it out to a different location. This seems to be working just fine when i run it outside the applet. But when i put it in the applet and invoke the corresponding functionality , I get the following stack - trace on the applet console :

Exception in thread "Thread-17" java.lang.NoClassDefFoundError: org/apache/poi/POIDocument
	at java.lang.ClassLoader.defineClass1(Native Method)...
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)...
	at CbayThreadApplet$ESignThread.run(CbayThreadApplet.java:850)
Caused by: java.lang.ClassNotFoundException: org.apache.poi.POIDocument
	at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
	... 8 more
Caused by: java.io.IOException: open HTTP connection failed:http://devscribe/ascendum/org/apache/poi/POIDocument.class
	at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source)...
	at java.security.AccessController.doPrivileged(Native Method)
	... 12 more

It seems to suggest that the applet cannot find the POI classess. Could you please tell me how i can overcome this problem? I have tried putting the POI jar files on the server/ within the applet( jar) - but to no avail.

Any suggestions please?