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diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/unix/AbstractAccessTask.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/unix/AbstractAccessTask.java
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+/*
+ *  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.
+ *
+ */
+
+/*
+ * Since the initial version of this file was deveolped on the clock on
+ * an NSF grant I should say the following boilerplate:
+ *
+ * This material is based upon work supported by the National Science
+ * Foundaton under Grant No. EIA-0196404. Any opinions, findings, and
+ * conclusions or recommendations expressed in this material are those
+ * of the author and do not necessarily reflect the views of the
+ * National Science Foundation.
+ */
+
+package org.apache.tools.ant.taskdefs.optional.unix;
+
+import java.io.File;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.taskdefs.condition.Os;
+import org.apache.tools.ant.types.Commandline;
+import org.apache.tools.ant.types.FileSet;
+
+/**
+ * @since Ant 1.6
+ *
+ * @ant.task category="filesystem"
+ */
+
+public abstract class AbstractAccessTask
+    extends org.apache.tools.ant.taskdefs.ExecuteOn {
+
+    /**
+     * Chmod task for setting file and directory permissions.
+     */
+    public AbstractAccessTask() {
+        super.setParallel(true);
+        super.setSkipEmptyFilesets(true);
+    }
+
+    /**
+     * Set the file which should have its access attributes modified.
+     * @param src the file to modify
+     */
+    public void setFile(File src) {
+        FileSet fs = new FileSet();
+        fs.setFile(src);
+        addFileset(fs);
+    }
+
+    /**
+     * Prevent the user from specifying a different command.
+     *
+     * @ant.attribute ignore="true"
+     * @param cmdl A user supplied command line that we won't accept.
+     */
+    public void setCommand(Commandline cmdl) {
+        throw new BuildException(getTaskType()
+                                 + " doesn\'t support the command attribute",
+                                 getLocation());
+    }
+
+    /**
+     * Prevent the skipping of empty filesets
+     *
+     * @ant.attribute ignore="true"
+     * @param skip A user supplied boolean we won't accept.
+     */
+    public void setSkipEmptyFilesets(boolean skip) {
+        throw new BuildException(getTaskType() + " doesn\'t support the "
+                                 + "skipemptyfileset attribute",
+                                 getLocation());
+    }
+
+    /**
+     * Prevent the use of the addsourcefile attribute.
+     *
+     * @ant.attribute ignore="true"
+     * @param b A user supplied boolean we won't accept.
+     */
+    public void setAddsourcefile(boolean b) {
+        throw new BuildException(getTaskType()
+            + " doesn\'t support the addsourcefile attribute", getLocation());
+    }
+
+    /**
+     * Automatically approve Unix OS's.
+     * @return true if a valid OS, for unix this is always true, otherwise
+     *              use the superclasses' test (user set).
+     */
+    protected boolean isValidOs() {
+        return getOs() == null && getOsFamily() == null
+            ? Os.isFamily(Os.FAMILY_UNIX) : super.isValidOs();
+    }
+}