diff -Naur a/src/java/EDU/oswego/cs/dl/util/concurrent/ConcurrentHashMap.java b/src/java/EDU/oswego/cs/dl/util/concurrent/ConcurrentHashMap.java
--- a/src/java/EDU/oswego/cs/dl/util/concurrent/ConcurrentHashMap.java	2014-05-14 16:52:52.967571704 +0300
+++ b/src/java/EDU/oswego/cs/dl/util/concurrent/ConcurrentHashMap.java	2014-05-14 17:20:45.893634182 +0300
@@ -656,7 +656,7 @@
    *               <code>null</code>.
    */
   public Object remove(Object key) {
-    return remove(key, null); 
+    return removeMapping(key, null); 
   }
 
 
@@ -675,7 +675,7 @@
    *               <code>null</code>.
    */
 
-  protected Object remove(Object key, Object value) {
+  protected Object removeMapping(Object key, Object value) {
     /*
       Find the entry, then 
         1. Set value field to null, to force get() to retry
@@ -946,7 +946,7 @@
       if (!(o instanceof Map.Entry))
         return false;
       Map.Entry e = (Map.Entry)o;
-      return ConcurrentHashMap.this.remove(e.getKey(), e.getValue()) != null;
+      return ConcurrentHashMap.this.removeMapping(e.getKey(), e.getValue()) != null;
     }
     public int size() {
       return ConcurrentHashMap.this.size();