private static File jarModulesOutput(
     @NotNull Set<Module> modules,
     @Nullable Manifest manifest,
     final @Nullable String pluginXmlPath)
     throws IOException {
   File jarFile = FileUtil.createTempFile(TEMP_PREFIX, JAR_EXTENSION);
   jarFile.deleteOnExit();
   ZipOutputStream jarPlugin = null;
   try {
     BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(jarFile));
     jarPlugin = manifest != null ? new JarOutputStream(out, manifest) : new JarOutputStream(out);
     final ProgressIndicator progressIndicator =
         ProgressManager.getInstance().getProgressIndicator();
     final Set<String> writtenItemRelativePaths = new HashSet<String>();
     for (Module module : modules) {
       final VirtualFile compilerOutputPath =
           CompilerModuleExtension.getInstance(module).getCompilerOutputPath();
       if (compilerOutputPath == null)
         continue; // pre-condition: output dirs for all modules are up-to-date
       ZipUtil.addDirToZipRecursively(
           jarPlugin,
           jarFile,
           new File(compilerOutputPath.getPath()),
           "",
           createFilter(progressIndicator, FileTypeManager.getInstance()),
           writtenItemRelativePaths);
     }
     if (pluginXmlPath != null) {
       ZipUtil.addFileToZip(
           jarPlugin,
           new File(pluginXmlPath),
           "/META-INF/plugin.xml",
           writtenItemRelativePaths,
           createFilter(progressIndicator, null));
     }
   } finally {
     if (jarPlugin != null) jarPlugin.close();
   }
   return jarFile;
 }
 private static void makeAndAddLibraryJar(
     final VirtualFile virtualFile,
     final File zipFile,
     final String pluginName,
     final ZipOutputStream zos,
     final Set<String> usedJarNames,
     final ProgressIndicator progressIndicator,
     final String preferredName)
     throws IOException {
   File libraryJar = FileUtil.createTempFile(TEMP_PREFIX, JAR_EXTENSION);
   libraryJar.deleteOnExit();
   ZipOutputStream jar = null;
   try {
     jar = new JarOutputStream(new BufferedOutputStream(new FileOutputStream(libraryJar)));
     ZipUtil.addFileOrDirRecursively(
         jar,
         libraryJar,
         VfsUtilCore.virtualToIoFile(virtualFile),
         "",
         createFilter(progressIndicator, FileTypeManager.getInstance()),
         null);
   } finally {
     if (jar != null) jar.close();
   }
   final String jarName =
       getLibraryJarName(
           virtualFile.getName() + JAR_EXTENSION,
           usedJarNames,
           preferredName == null ? null : preferredName + JAR_EXTENSION);
   ZipUtil.addFileOrDirRecursively(
       zos,
       zipFile,
       libraryJar,
       getZipPath(pluginName, jarName),
       createFilter(progressIndicator, null),
       null);
 }