Relative path to file in servlet class file

Hello,
I have several classes running as a Tomcat Servlet on my server. However, I have one class that I would like to access a file on the server.
The problem is, what path do I use? I want to use a relative path as the servlet might be moved and I don't want to recompile each time the servlet is moved. For instance, I placed the file in the servlet directory under webapps in the same level with the WEB-INF directory. However, using "../../text.txt" does not seem to access it.
What path should I use?
Thanks in advance.
Chris

This is what I have done:
     String FS = System.getProperty("file.separator");
     String ctx = getServletContext( ).getRealPath( "" ) + FS;
     URL url = new URL("file", "", ctx +   "somefile.txt");
     //Create a BufferedReader for reading the inputstream.
     BufferedReader br = new BufferedReader(new InputStreamReader(url.openStream()));This gets you back to the "root", or one level above WEB-INF. Add the folder name where the file is located. As in      URL url = new URL("file", "", ctx +   "theFolder/somefile.txt");HTH,
WalkGood

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