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diff --git a/emailcommon/src/org/apache/commons/io/comparator/PathFileComparator.java b/emailcommon/src/org/apache/commons/io/comparator/PathFileComparator.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.
- */
-package org.apache.commons.io.comparator;
-
-import java.io.File;
-import java.io.Serializable;
-import java.util.Comparator;
-
-import org.apache.commons.io.IOCase;
-
-/**
- * Compare the <b>path</b> of two files for order (see {@link File#getPath()}).
- * <p>
- * This comparator can be used to sort lists or arrays of files
- * by their path either in a case-sensitive, case-insensitive or
- * system dependant case sensitive way. A number of singleton instances
- * are provided for the various case sensitivity options (using {@link IOCase})
- * and the reverse of those options.
- * <p>
- * Example of a <i>case-sensitive</i> file path sort using the
- * {@link #PATH_COMPARATOR} singleton instance:
- * <pre>
- *       List&lt;File&gt; list = ...
- *       Collections.sort(list, PathFileComparator.PATH_COMPARATOR);
- * </pre>
- * <p>
- * Example of a <i>reverse case-insensitive</i> file path sort using the
- * {@link #PATH_INSENSITIVE_REVERSE} singleton instance:
- * <pre>
- *       File[] array = ...
- *       Arrays.sort(array, PathFileComparator.PATH_INSENSITIVE_REVERSE);
- * </pre>
- * <p>
- *
- * @version $Revision: 609243 $ $Date: 2008-01-06 00:30:42 +0000 (Sun, 06 Jan 2008) $
- * @since Commons IO 1.4
- */
-public class PathFileComparator implements Comparator<File>, Serializable {
-
-    /** Case-sensitive path comparator instance (see {@link IOCase#SENSITIVE}) */
-    public static final Comparator<File> PATH_COMPARATOR = new PathFileComparator();
-
-    /** Reverse case-sensitive path comparator instance (see {@link IOCase#SENSITIVE}) */
-    public static final Comparator<File> PATH_REVERSE = new ReverseComparator<File>(PATH_COMPARATOR);
-
-    /** Case-insensitive path comparator instance (see {@link IOCase#INSENSITIVE}) */
-    public static final Comparator<File> PATH_INSENSITIVE_COMPARATOR = new PathFileComparator(IOCase.INSENSITIVE);
-
-    /** Reverse case-insensitive path comparator instance (see {@link IOCase#INSENSITIVE}) */
-    public static final Comparator<File> PATH_INSENSITIVE_REVERSE = new ReverseComparator<File>(PATH_INSENSITIVE_COMPARATOR);
-
-    /** System sensitive path comparator instance (see {@link IOCase#SYSTEM}) */
-    public static final Comparator<File> PATH_SYSTEM_COMPARATOR = new PathFileComparator(IOCase.SYSTEM);
-
-    /** Reverse system sensitive path comparator instance (see {@link IOCase#SYSTEM}) */
-    public static final Comparator<File> PATH_SYSTEM_REVERSE = new ReverseComparator<File>(PATH_SYSTEM_COMPARATOR);
-
-    /** Whether the comparison is case sensitive. */
-    private final IOCase caseSensitivity;
-
-    /**
-     * Construct a case sensitive file path comparator instance.
-     */
-    public PathFileComparator() {
-        this.caseSensitivity = IOCase.SENSITIVE;
-    }
-
-    /**
-     * Construct a file path comparator instance with the specified case-sensitivity.
-     *
-     * @param caseSensitivity  how to handle case sensitivity, null means case-sensitive
-     */
-    public PathFileComparator(IOCase caseSensitivity) {
-        this.caseSensitivity = caseSensitivity == null ? IOCase.SENSITIVE : caseSensitivity;
-    }
-
-    /**
-     * Compare the paths of two files the specified case sensitivity.
-     *
-     * @param obj1 The first file to compare
-     * @param obj2 The second file to compare
-     * @return a negative value if the first file's path
-     * is less than the second, zero if the paths are the
-     * same and a positive value if the first files path
-     * is greater than the second file.
-     *
-     */
-    public int compare(File file1, File file2) {
-        return caseSensitivity.checkCompareTo(file1.getPath(), file2.getPath());
-    }
-}