Avoid NPE

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@740087 13f79535-47bb-0310-9956-ffa450edef68
2009-02-02 19:38:04 +00:00 · 2009-02-02 19:38:04 +00:00 · c01e182cfd
parent 662aee8f21
commit c01e182cfd
1 changed files with 2 additions and 0 deletions
--- a/kahadb/src/main/java/org/apache/kahadb/util/LinkedNodeList.java
+++ b/kahadb/src/main/java/org/apache/kahadb/util/LinkedNodeList.java
@ -100,6 +100,8 @@ public class LinkedNodeList<T extends LinkedNode<T>> {
     * @return
     */
    public T rotate() {
+    	if( head ==null )
+    		return null;
        return head = head.getNextCircular();
    }