CopyOnWriteArrayList.java: Fix for empty list.

2010-04-27  Andrew Haley  <aph@redhat.com>

        * java/util/concurrent/CopyOnWriteArrayList.java: Fix for empty
        list.

From-SVN: r158790

libjava/classpath/ChangeLog

 2010-04-27  Andrew Haley  <aph@redhat.com>
 
+	* java/util/concurrent/CopyOnWriteArrayList.java: Fix for empty
+	list.
+
+2010-04-27  Andrew Haley  <aph@redhat.com>
+
 	* gnu/javax/print/ipp/IppResponse.java (parseAttributes): Handle
 	IppValueTag.UNKNOWN.  
 	* gnu/javax/print/ipp/IppRequest.java (writeOperationAttributes):

libjava/classpath/java/util/concurrent/CopyOnWriteArrayList.java

@@ -452,7 +452,12 @@ public class CopyOnWriteArrayList<E>
   public synchronized boolean remove(Object element)
   {
     E[] snapshot = this.data;
-    E[] newData = (E[]) new Object[snapshot.length - 1];
+    int len = snapshot.length;
+
+    if (len == 0)
+      return false;
+
+    E[] newData = (E[]) new Object[len - 1];
     
     // search the element to remove while filling the backup array
     // this way we can run this method in O(n)