Reset destDir to null in <copy> if destFile has been set. This allows

a single instance of Copy to be used more than one - like in

ant -Dant.install=../dist/jakarta-ant dist install

where the second time the dist target gets executed would throw an
exception. You can see this in the logs of recent nightly builds of Ant.


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@268084 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/Copy.java

@@ -191,6 +191,12 @@ public class Copy extends Task {
 
         // do all the copy operations now...
         doFileOperations();
+
+        // clean up destDir again - so this instance can be used a second
+        // time without throwing an exception
+        if (destFile != null) {
+            destDir = null;
+        }
     }
 
 //************************************************************************