Bug 33897 [Import/Export] Export to .tar.gz or .tar.bz2
Right click a Java project. Choose "Export...". A window opens where you can choose between different export targets. There is no ".tar.gz" target or ".tar.bz2". I would like to have either one (or both). If I must choose one, I prefer ".tar.bz2", but I don't really have a strong opinion about it; ".tar.gz" would be fine as well. The reason I somewhat prefer bzip2 is that bzip2 makes files noticably smaller than gzip, and my impression is that gzip is slowly being outcompeted. A Linux-GTK implementation would be good enough for me, but it is possible that "Unix All" would be a better platform as other Unix users could probably be interested in this as well.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/ZipFileExporter.java
*
     *	@param pathname java.lang.String
     *	@param contents byte[]
     *	@exception java.io.IOException
     */
    protected void write(String pathname, byte[] contents) throws IOException {
        ZipEntry newEntry = new ZipEntry(pathname);
        
        if (!useCompression) {
            newEntry.setMethod(ZipEntry.STORED);
            newEntry.setSize(contents.length);
            CRC32 checksumCalculator = new CRC32();
            checksumCalculator.update(contents);
            newEntry.setCrc(checksumCalculator.getValue());
        }
        outputStream.putNextEntry(newEntry);
        outputStream.write(contents);
        outputStream.closeEntry();
    }
    /**
     *  Write the passed resource to the current archive
     *
     *  @param resource org.eclipse.core.resources.IFile
     *  @param destinationPath java.lang.String
     *  @exception java.io.IOException
     *  @exception org.eclipse.core.runtime.CoreException
     */
    public void write(IFile resource, String destinationPath)
            throws IOException, CoreException {
        ByteArrayOutputStream output = null;