Merge 1.9.x branch into master

WHATSNEW

@@ -1,6 +1,15 @@
 Changes from Ant 1.10.2 TO Ant 1.10.3
 =====================================
 
+Changes that could break older environments:
+-------------------------------------------
+
+ * Previous versions of Ant's copy task would throw a BuildException
+   if the "name" of the resource to copy was null. Starting
+   this version, the copy task instead silently skips such resources
+   and no longer throws an exception.
+   ant-dev list https://www.mail-archive.com/dev@ant.apache.org/msg46634.html
+
 Fixed bugs:
 -----------
 

src/tests/antunit/taskdefs/copy-test.xml

@@ -83,12 +83,12 @@ public class NullByteStreamResource extends Resource {
   </target>
 
   <target name="testResourceWithoutName"
-          depends="-setupNullByteStreamResource">
-    <au:expectfailure>
-      <copy todir="${output}">
-        <nullstream/>
-      </copy>
-    </au:expectfailure>
+          depends="-setupNullByteStreamResource" description="Tests that a
+          copy operation, of a resource without a name, doesn't run into (NPE)
+           exceptions. The resource itself will however be silently ignored">
+    <copy todir="${output}">
+      <nullstream/>
+    </copy>
   </target>
 
   <target name="testResourceWithoutNameWithMergeMapper"