JDK 9 RFR of JDK-8036744: Fix raw lint warnings in java.lang.reflect.WeakCache

[Joe Darcy]

Hello,

Please review the simple patch below which resolves two unchecked cast 
lint warnings in java.lang.reflect.WeakCache.

Thanks,

-Joe

diff -r 9099a251d211 src/share/classes/java/lang/reflect/WeakCache.java
--- a/src/share/classes/java/lang/reflect/WeakCache.java    Wed Mar 05 
11:53:35 2014 -0800
+++ b/src/share/classes/java/lang/reflect/WeakCache.java    Wed Mar 05 
16:51:20 2014 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights 
reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -184,6 +184,7 @@
         return reverseMap.size();
     }

+    @SuppressWarnings("unchecked") // refQueue.poll actually returns 
CacheKey<K>
     private void expungeStaleEntries() {
         CacheKey<K> cacheKey;
         while ((cacheKey = (CacheKey<K>)refQueue.poll()) != null) {
@@ -351,6 +352,7 @@
         }

         @Override
+        @SuppressWarnings("unchecked")
         public boolean equals(Object obj) {
             K key;
             return obj == this ||
@@ -359,7 +361,7 @@
                    // cleared CacheKey is only equal to itself
                    (key = this.get()) != null &&
                    // compare key by identity
-                   key == ((CacheKey<K>) obj).get();
+                   key == ((CacheKey<K>) obj).get(); // Cast is safe 
from getClass check
         }

         void expungeFrom(ConcurrentMap<?, ? extends ConcurrentMap<?, 
?>> map,