Fix checkstyle if-statements must use braces sal-common-util

[controller.git] / opendaylight / md-sal / sal-common-util / src / main / java / org / opendaylight / controller / sal / common / util / Arguments.java

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 902665d1a6fa137d41d7f1bc89cf8116fbb52ee1..17ce5dffcf0b97ea18c86774da3acaee428ee6ae 100644 (file)
--- 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;
     }
 }