1 files changed, 0 insertions, 135 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/FailFast.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/FailFast.java
deleted file mode 100644
index dc962bb4..00000000
--- a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/resources/FailFast.java
+++ /dev/null
@@ -1,135 +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.ConcurrentModificationException;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.NoSuchElementException;
-import java.util.Set;
-import java.util.WeakHashMap;
-
-import org.apache.tools.ant.types.Resource;
-
-/**
- * Helper class for ResourceCollections to return Iterators
- * that fail on changes to the object.
- * @since Ant 1.7
- */
-/*package-private*/ class FailFast implements Iterator<Resource> {
-    private static final WeakHashMap<Object, Set<FailFast>> MAP = new WeakHashMap<Object, Set<FailFast>>();
-
-    /**
-     * Invalidate any in-use Iterators from the specified Object.
-     * @param o the parent Object.
-     */
-    static synchronized void invalidate(Object o) {
-        Set<FailFast> s = MAP.get(o);
-        if (s != null) {
-            s.clear();
-        }
-    }
-
-    private static synchronized void add(FailFast f) {
-        Set<FailFast> s = MAP.get(f.parent);
-        if (s == null) {
-            s = new HashSet<FailFast>();
-            MAP.put(f.parent, s);
-        }
-        s.add(f);
-    }
-
-    private static synchronized void remove(FailFast f) {
-        Set<FailFast> s = MAP.get(f.parent);
-        if (s != null) {
-            s.remove(f);
-        }
-    }
-
-    private static synchronized void failFast(FailFast f) {
-        Set<FailFast> s = MAP.get(f.parent);
-        if (!s.contains(f)) {
-            throw new ConcurrentModificationException();
-        }
-    }
-
-    private final Object parent;
-    private Iterator<Resource> wrapped;
-
-    /**
-     * Construct a new FailFast Iterator wrapping the specified Iterator
-     * and dependent upon the specified parent Object.
-     * @param o the parent Object.
-     * @param i the wrapped Iterator.
-     */
-    FailFast(Object o, Iterator<Resource> i) {
-        if (o == null) {
-            throw new IllegalArgumentException("parent object is null");
-        }
-        if (i == null) {
-            throw new IllegalArgumentException("cannot wrap null iterator");
-        }
-        parent = o;
-        if (i.hasNext()) {
-            wrapped = i;
-            add(this);
-        }
-    }
-
-    /**
-     * Fulfill the Iterator contract.
-     * @return true if there are more elements.
-     */
-    public boolean hasNext() {
-        if (wrapped == null) {
-            return false;
-        }
-        failFast(this);
-        return wrapped.hasNext();
-    }
-
-    /**
-     * Fulfill the Iterator contract.
-     * @return the next element.
-     * @throws NoSuchElementException if no more elements.
-     */
-    public Resource next() {
-        if (wrapped == null || !wrapped.hasNext()) {
-            throw new NoSuchElementException();
-        }
-        failFast(this);
-        try {
-            return wrapped.next();
-        } finally {
-            if (!wrapped.hasNext()) {
-                wrapped = null;
-                remove(this);
-            }
-        }
-    }
-
-    /**
-     * Fulfill the Iterator contract.
-     * @throws UnsupportedOperationException always.
-     */
-    public void remove() {
-        throw new UnsupportedOperationException();
-    }
-
-}
-