private InputStream getResourceStream(final File file, final String resourceName) { try { JarFile jarFile = this.jarFiles.get(file); if (jarFile == null && file.isDirectory()) { final File resource = new File(file, resourceName); if (resource.exists()) { return new FileInputStream(resource); } } else { if (jarFile == null) { if (!file.exists()) { return null; } jarFile = new JarFile(file); this.jarFiles.put(file, jarFile); jarFile = this.jarFiles.get(file); } final JarEntry entry = jarFile.getJarEntry(resourceName); if (entry != null) { return jarFile.getInputStream(entry); } } } catch (Exception e) { this.log( "Ignoring Exception " + e.getClass().getName() + ": " + e.getMessage() + " reading resource " + resourceName + " from " + file, 3); } return null; }