1 files changed, 0 insertions, 63 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/Difference.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/Difference.java
deleted file mode 100644
index 3f3c983c..00000000
--- a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/Difference.java
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- *  Licensed to the Apache Software Foundation (ASF) under one or more
- *  contributor license agreements.  See the NOTICE file distributed with
- *  this work for additional information regarding copyright ownership.
- *  The ASF licenses this file to You under the Apache License, Version 2.0
- *  (the "License"); you may not use this file except in compliance with
- *  the License.  You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS,
- *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- *
- */
-package org.apache.tools.ant.types.resources;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-
-import org.apache.tools.ant.BuildException;
-import org.apache.tools.ant.types.Resource;
-import org.apache.tools.ant.types.ResourceCollection;
-
-/**
- * ResourceCollection representing the difference between
- * two or more nested ResourceCollections.
- * @since Ant 1.7
- */
-public class Difference extends BaseResourceCollectionContainer {
-
-    /**
-     * Calculate the difference of the nested ResourceCollections.
-     * @return a Collection of Resources.
-     */
-    protected Collection<Resource> getCollection() {
-        List<ResourceCollection> rcs = getResourceCollections();
-        int size = rcs.size();
-        if (size < 2) {
-            throw new BuildException("The difference of " + size
-                + " resource collection" + ((size == 1) ? "" : "s")
-                + " is undefined.");
-        }
-        Set<Resource> hs = new HashSet<Resource>();
-        List<Resource> al = new ArrayList<Resource>();
-        for (ResourceCollection rc : rcs) {
-            for (Resource r : rc) {
-                if (hs.add(r)) {
-                    al.add(r);
-                } else {
-                    al.remove(r);
-                }
-            }
-        }
-        return al;
-    }
-
-}