private void writeUninstallerJarFileLog(UninstallData udata, JarOutputStream outJar)
     throws IOException {
   BufferedWriter logWriter;
   outJar.putNextEntry(new JarEntry("jarlocation.log"));
   logWriter = new BufferedWriter(new OutputStreamWriter(outJar));
   logWriter.write(udata.getUninstallerJarFilename());
   logWriter.newLine();
   logWriter.write(udata.getUninstallerPath());
   logWriter.flush();
   outJar.closeEntry();
 }