creation of file at checkout

I am Saurabh and have been trying to develop an application using javacvs.i 
have been facing trying to modify javacvs to my needs.

When we checkout a file using Javacvs, it creates a temp file or creates the 
file itself at an identical heirarchy as cvs at local home depending on the 
parameter pipeToOutput.
I have been trying to stop the creation of any kind of file using the package. 
For this, i've modified the class 
org.netbeans.lib.cvsclient.file.DefaultFileHandler.class's 
writeAndPostProcessTextFile(String path, String mode, LoggedDataInputStream 
dis,int
length, WriteTextFilePreprocessor processor) method. Modified its 
implementation to not create a file and produce a StringBuffer or StringArray.

Can u please confirm the approach and suggest the handling of created buffer. I 
have been facing troubles testing it thoroughly due to fragile nature of jar 
and have not been able to stabilise it.