--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/visual-panels/core/src/java/util/com/oracle/solaris/vp/util/misc/ThrowableUtil.java	Thu May 24 04:16:47 2012 -0400
@@ -0,0 +1,73 @@
+/*
+ * 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;
+
+public class ThrowableUtil {
+    /**
+     * Gets the "true" message of the given {@code Throwable}.  Unless a message
+     * has explicitly been set in a {@code Throwable}, its message is {@code
+     * getCause().toString()}, which may contain a prefix not suitable for
+     * display in an error dialog.  So, dig into the {@code Throwable} cause
+     * hierarchy to find a {@code Throwable} where the message has explicitly
+     * been set.
+     */
+    public static String getTrueMessage(Throwable t) {
+	while (true) {
+	    String message = t.getMessage();
+	    Throwable cause = t.getCause();
+
+	    if (cause == null ||
+		!ObjectUtil.equals(message, cause.toString())) {
+		return message;
+	    }
+
+	    t = cause;
+	}
+    }
+
+    /**
+     * Appends the stack trace of the current thread to the stack trace in
+     * given {@code Throwable}.
+     */
+    public static void appendStackTrace(Throwable t) {
+	StackTraceElement[] throwableStack = t.getStackTrace();
+	StackTraceElement[] threadStack =
+	    Thread.currentThread().getStackTrace();
+
+	// Strip out the call to Thread.getStackTrace and this method
+	int offset = 2;
+
+	StackTraceElement[] stack = new StackTraceElement[
+	    throwableStack.length + threadStack.length - offset];
+
+	System.arraycopy(throwableStack, 0, stack, 0, throwableStack.length);
+
+	System.arraycopy(threadStack, offset, stack, throwableStack.length,
+	    threadStack.length - offset);
+
+	t.setStackTrace(stack);
+    }
+}