1 files changed, 120 insertions, 0 deletions
diff --git a/java/src/IceInternal/HashUtil.java b/java/src/IceInternal/HashUtil.java
new file mode 100644
index 00000000000..520254bbc64
--- /dev/null
+++ b/java/src/IceInternal/HashUtil.java
@@ -0,0 +1,120 @@
+// **********************************************************************
+//
+// Copyright (c) 2003-2012 ZeroC, Inc. All rights reserved.
+//
+// This copy of Ice is licensed to you under the terms described in the
+// ICE_LICENSE file included in this distribution.
+//
+// **********************************************************************
+
+package IceInternal;
+
+public final class HashUtil
+{
+    public static int
+    hashAdd(int hashCode, boolean value)
+    {
+        return ((hashCode << 5) + hashCode) ^ (value ? 0 : 1);
+    }
+
+    public static int
+    hashAdd(int hashCode, short value)
+    {
+        return ((hashCode << 5) + hashCode) ^ (int)(2654435761l * value);
+    }
+
+    public static int
+    hashAdd(int hashCode, byte value)
+    {
+        return ((hashCode << 5) + hashCode) ^ (int)(2654435761l * value);
+    }
+
+    public static int
+    hashAdd(int hashCode, int value)
+    {
+        return ((hashCode << 5) + hashCode) ^ (int)(2654435761l * value);
+    }
+
+    public static int
+    hashAdd(int hashCode, long value)
+    {
+        return ((hashCode << 5) + hashCode) ^ (int)(value ^ (value >>> 32));
+    }
+
+    public static int
+    hashAdd(int hashCode, float value)
+    {
+        return ((hashCode << 5) + hashCode) ^ Float.floatToIntBits(value);
+    }
+
+    public static int
+    hashAdd(int hashCode, double value)
+    {
+        long v = Double.doubleToLongBits(value);
+        return ((hashCode << 5) + hashCode) ^ (int)(v ^ (v >>> 32));
+    }
+
+    public static int
+    hashAdd(int hashCode, java.lang.Object value)
+    {
+        if(value != null)
+        {
+            hashCode = ((hashCode << 5) + hashCode) ^ value.hashCode();
+        }
+        return hashCode;
+    }
+
+    public static int
+    hashAdd(int hashCode, boolean[] arr)
+    {
+        return ((hashCode << 5) + hashCode) ^ java.util.Arrays.hashCode(arr);
+    }
+
+    public static int
+    hashAdd(int hashCode, byte[] arr)
+    {
+        return ((hashCode << 5) + hashCode) ^ java.util.Arrays.hashCode(arr);
+    }
+
+    public static int
+    hashAdd(int hashCode, char[] arr)
+    {
+        return ((hashCode << 5) + hashCode) ^ java.util.Arrays.hashCode(arr);
+    }
+
+    public static int 
+    hashAdd(int hashCode, double[] arr)
+    {
+        return ((hashCode << 5) + hashCode) ^ java.util.Arrays.hashCode(arr);
+    }
+
+    public static int
+    hashAdd(int hashCode, float[] arr)
+    {
+        return ((hashCode << 5) + hashCode) ^ java.util.Arrays.hashCode(arr);
+    }
+
+    public static int
+    hashAdd(int hashCode, int[] arr)
+    {
+        return ((hashCode << 5) + hashCode) ^ java.util.Arrays.hashCode(arr);
+    }
+
+    public static int
+    hashAdd(int hashCode, long[] arr)
+    {
+        return ((hashCode << 5) + hashCode) ^ java.util.Arrays.hashCode(arr);
+    }
+
+    public static int
+    hashAdd(int hashCode, Object[] arr)
+    {
+        return ((hashCode << 5) + hashCode) ^ java.util.Arrays.hashCode(arr);
+    }
+
+    public static int
+    hashAdd(int hashCode, short[] arr)
+    {
+        return ((hashCode << 5) + hashCode) ^ java.util.Arrays.hashCode(arr);
+    }
+}