--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/visual-panels/core/src/java/util/com/oracle/solaris/vp/util/misc/FileUtil.java	Thu May 24 04:16:47 2012 -0400
@@ -0,0 +1,51 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
+ */
+
+package com.oracle.solaris.vp.util.misc;
+
+import java.io.*;
+import java.security.*;
+
+public class FileUtil {
+    public static byte[] getHash(String file, String algorithm)
+	throws IOException, NoSuchAlgorithmException {
+
+	FileInputStream in = null;
+	try {
+	    MessageDigest digest = MessageDigest.getInstance(algorithm);
+	    in = new FileInputStream(file);
+	    byte[] buffer = new byte[1024];
+
+	    int n;
+	    while ((n = in.read(buffer, 0, buffer.length)) != -1) {
+		digest.update(buffer, 0, n);
+	    }
+
+	    return digest.digest();
+	} finally {
+	    IOUtil.closeIgnore(in);
+	}
+    }
+}