--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/gov/nasa/jpf/util/IntArray.java	Fri Jan 23 10:14:01 2015 -0800
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2014, United States Government, as represented by the
+ * Administrator of the National Aeronautics and Space Administration.
+ * All rights reserved.
+ *
+ * The Java Pathfinder core (jpf-core) platform is licensed under the
+ * Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ * 
+ *        http://www.apache.org/licenses/LICENSE-2.0. 
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and 
+ * limitations under the License.
+ */
+package gov.nasa.jpf.util;
+
+import java.util.Arrays;
+
+/**
+ * Wrapper for int[] that provides proper equals() and hashCode() methods.
+ */
+public class IntArray {
+  public final int[] data;
+  
+  public IntArray(int size) {
+    data = new int[size];
+  }
+  
+  public IntArray(int[] data) {
+    this.data = data;
+  }
+  
+  @Override
+  public int hashCode() {
+    return Arrays.hashCode(data);
+  }
+  
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) return true;
+    if (! (o instanceof IntArray)) return false;
+    int[] thatData = ((IntArray)o).data;
+    int[] thisData = this.data;
+    return Arrays.equals(thisData, thatData);
+  }
+}