Tar file from Java

the doco has lots of examples
http://ant.apache.org/manual/CoreTasks/tar.html

thanks objects,

here is my code

       Tar t = new Tar();
      t.setBasedir(new File("c:\\test"));
      t.setDestFile(new File("c:\\test.tar"));
      t.execute();

I get

       Exception in thread "main" java.lang.NullPointerException
      at org.apache.tools.ant.types.AbstractFileSet.setupDirectoryScanner(AbstractFileSet.java:382)
      at org.apache.tools.ant.types.AbstractFileSet.getDirectoryScanner(AbstractFileSet.java:356)
      at org.apache.tools.ant.taskdefs.Tar$TarFileSet.getFiles(Tar.java:473)
      at org.apache.tools.ant.taskdefs.Tar.execute(Tar.java:231)

I've always used trustice package http://www.trustice.com/java/tar/
you'll probably need to give it some context to use it outside ant, will check and get back top you.

objects,
do you use the TarArchive ?  if so , do you have an example?
thanks

http://helpdesk.objects.com.au/java/how-to-create-a-tar-archive-using-java

thanks objets, that works,
but would you happen to know how to use TarGzOutputStream? to compress it.

This is great.!!   thanks again..