X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-common-util%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fsal%2Fcommon%2Futil%2FArguments.java;h=d09024aea0ccf73a50006c9c28bdca4e3b7a9aa1;hb=8da08c9f008d371c491cf6b35494ca36c2ebdcb9;hp=2d10fba8a5fd77c18b872991669d576f9aae7a7e;hpb=4f5a4b3e71e81c6149a1ca78ca418866e152c45b;p=controller.git

diff --git a/opendaylight/md-sal/sal-common-util/src/main/java/org/opendaylight/controller/sal/common/util/Arguments.java b/opendaylight/md-sal/sal-common-util/src/main/java/org/opendaylight/controller/sal/common/util/Arguments.java
index 2d10fba8a5..d09024aea0 100644
--- a/opendaylight/md-sal/sal-common-util/src/main/java/org/opendaylight/controller/sal/common/util/Arguments.java
+++ b/opendaylight/md-sal/sal-common-util/src/main/java/org/opendaylight/controller/sal/common/util/Arguments.java
@@ -1,23 +1,30 @@
+/*
+ * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
 package org.opendaylight.controller.sal.common.util;
 
-public class Arguments {
+public final class Arguments {
 
     private Arguments() {
         throw new UnsupportedOperationException("Utility class");
     }
-    
+
     /**
-     * Checks if value is instance of provided class
-     * 
-     * 
+     * Checks if value is instance of provided class.
+     *
      * @param value Value to check
      * @param type Type to check
      * @return Reference which was checked
      */
     @SuppressWarnings("unchecked")
     public static <T> T checkInstanceOf(Object value, Class<T> type) {
-        if(!type.isInstance(value))
-            throw new IllegalArgumentException();
+        if (!type.isInstance(value)) {
+            throw new IllegalArgumentException(String.format("Value %s is not of type %s", value, type));
+        }
         return (T) value;
     }
 }