--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/visual-panels/core/src/java/util/com/oracle/solaris/vp/util/misc/finder/ItemFinder.java	Thu May 24 04:16:47 2012 -0400
@@ -0,0 +1,95 @@
+/*
+ * 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.finder;
+
+import java.security.*;
+
+public class ItemFinder implements FindingClass {
+    //
+    // Inner classes
+    //
+
+    // A number of classes in the JDK return the current thread's class stack
+    // as a Class array, but none exposes this functionality publicly.  The
+    // closest is SecurityManager, whose getClassContext method has protected
+    // access.  Thus this hack.
+    //
+    // Note that java.lang.StackTraceElement is insufficient as it does not
+    // return the actual Class objects in the stack, which are necessary to
+    // retrieve each class's ClassLoader.
+    //
+    // An alternate approach would be to implement getClassContext() as a native
+    // method.
+    private static class MySecurityManager extends SecurityManager {
+	@Override
+	public Class[] getClassContext() {
+	    return super.getClassContext();
+	}
+    }
+
+    //
+    // Static data
+    //
+
+    private static final MySecurityManager sManager = new MySecurityManager();
+    private static final String className = ItemFinder.class.getName();
+
+    //
+    // Static methods
+    //
+
+    public static Class[] getClassContext() {
+	return sManager.getClassContext();
+    }
+
+    /**
+     * Gets the first class under the last {@link FindingClass} in the class
+     * stack.
+     */
+    public static Class getCallerClass() {
+	return AccessController.doPrivileged(
+	    new PrivilegedAction<Class>() {
+		@Override
+		public Class run() {
+		    return getCallerClassImp();
+		}
+	    });
+    }
+
+    //
+    // Private static methods
+    //
+
+    private static Class getCallerClassImp() {
+	Class[] stack = getClassContext();
+	for (int i = stack.length - 2; i >= 0; i--) {
+	    if (FindingClass.class.isAssignableFrom(stack[i])) {
+		return stack[i + 1];
+	    }
+	}
+	return null;
+    }
+}