diff --git a/jdk/src/share/classes/java/util/HashMap.java b/jdk/src/share/classes/java/util/HashMap.java
index fbb7b730a72..daebd7867fe 100644
--- a/jdk/src/share/classes/java/util/HashMap.java
+++ b/jdk/src/share/classes/java/util/HashMap.java
@@ -173,7 +173,7 @@ public class HashMap<K,V>
      * rehash).  This field is used to make iterators on Collection-views of
      * the HashMap fail-fast.  (See ConcurrentModificationException).
      */
-    transient volatile int modCount;
+    transient int modCount;
 
     /**
      * Constructs an empty <tt>HashMap</tt> with the specified initial
diff --git a/jdk/src/share/classes/java/util/IdentityHashMap.java b/jdk/src/share/classes/java/util/IdentityHashMap.java
index 9ace500ffc4..7e27bd76e8d 100644
--- a/jdk/src/share/classes/java/util/IdentityHashMap.java
+++ b/jdk/src/share/classes/java/util/IdentityHashMap.java
@@ -173,7 +173,7 @@ public class IdentityHashMap<K,V>
     /**
      * The number of modifications, to support fast-fail iterators
      */
-    private transient volatile int modCount;
+    private transient int modCount;
 
     /**
      * The next size value at which to resize (capacity * load factor).
diff --git a/jdk/src/share/classes/java/util/WeakHashMap.java b/jdk/src/share/classes/java/util/WeakHashMap.java
index 2287b7ef06c..bdf52c57999 100644
--- a/jdk/src/share/classes/java/util/WeakHashMap.java
+++ b/jdk/src/share/classes/java/util/WeakHashMap.java
@@ -182,7 +182,7 @@ public class WeakHashMap<K,V>
      *
      * @see ConcurrentModificationException
      */
-    volatile int modCount;
+    int modCount;
 
     @SuppressWarnings("unchecked")
     private Entry<K,V>[] newTable(int n) {