src/java.base/share/classes/sun/net/www/protocol/jar/URLJarFile.java

@@ -211,11 +211,11 @@
             JarFile result = null;
 
             /* get the stream before asserting privileges */
             try (final InputStream in = url.openConnection().getInputStream()) {
                 result = AccessController.doPrivileged(
-                    new PrivilegedExceptionAction<JarFile>() {
+                    new PrivilegedExceptionAction<>() {
                         public JarFile run() throws IOException {
                             Path tmpFile = Files.createTempFile("jar_cache", null);
                             try {
                                 Files.copy(in, tmpFile, StandardCopyOption.REPLACE_EXISTING);
                                 JarFile jarFile = new URLJarFile(tmpFile.toFile(), closeController);