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=17ce5dffcf0b97ea18c86774da3acaee428ee6ae;hb=940603a5319c9a0eff30e92f2dc83817974d7f78;hp=902665d1a6fa137d41d7f1bc89cf8116fbb52ee1;hpb=d575edf655b58bb5aafd88c113ace7d41a813d7c;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 902665d1a6..17ce5dffcf 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
@@ -7,24 +7,25 @@
  */
 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
-     * 
-     * 
+     *
+     *
      * @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;
     }
 }