src/java.base/share/classes/java/util/jar/JarVerifier.java

@@ -682,11 +682,11 @@
         }
 
         final List<CodeSigner[]> signersReq = req;
         final Enumeration<String> enum2 = (matchUnsigned) ? unsignedEntryNames(jar) : emptyEnumeration;
 
-        return new Enumeration<String>() {
+        return new Enumeration<>() {
 
             String name;
 
             public boolean hasMoreElements() {
                 if (name != null) {

@@ -724,11 +724,11 @@
      */
     public Enumeration<JarEntry> entries2(final JarFile jar, Enumeration<? extends ZipEntry> e) {
         final Map<String, CodeSigner[]> map = new HashMap<>();
         map.putAll(signerMap());
         final Enumeration<? extends ZipEntry> enum_ = e;
-        return new Enumeration<JarEntry>() {
+        return new Enumeration<>() {
 
             Enumeration<String> signers = null;
             JarEntry entry;
 
             public boolean hasMoreElements() {

@@ -784,11 +784,11 @@
     }
 
     private Enumeration<String> unsignedEntryNames(JarFile jar) {
         final Map<String, CodeSigner[]> map = signerMap();
         final Enumeration<JarEntry> entries = jar.entries();
-        return new Enumeration<String>() {
+        return new Enumeration<>() {
 
             String name;
 
             /*
              * Grab entries from ZIP directory but screen out