diff --git a/src/ooxml/interfaces-jdk15/org/apache/poi/ss/usermodel/FontUndeline.java b/src/ooxml/interfaces-jdk15/org/apache/poi/ss/usermodel/FontUndeline.java
deleted file mode 100755
index ec77af900..000000000
--- a/src/ooxml/interfaces-jdk15/org/apache/poi/ss/usermodel/FontUndeline.java
+++ /dev/null
@@ -1,123 +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.poi.xssf.usermodel;
-
-import org.apache.poi.ss.usermodel.Font;
-
-/**
- * the different types of possible underline formatting
- *
- * @author Gisella Bronzetti
- */
-public enum FontUnderline {
-
-    /**
-     * Single-line underlining under each character in the cell.
-     * The underline is drawn through the descenders of
-     * characters such as g and p..
-     */
-    SINGLE(1),
-
-    /**
-     * Double-line underlining under each character in the
-     * cell. underlines are drawn through the descenders of
-     * characters such as g and p.
-     */
-    DOUBLE(2),
-
-    /**
-     * Single-line accounting underlining under each
-     * character in the cell. The underline is drawn under the
-     * descenders of characters such as g and p.
-     */
-    SINGLE_ACCOUNTING(3),
-
-    /**
-     * Double-line accounting underlining under each
-     * character in the cell. The underlines are drawn under
-     * the descenders of characters such as g and p.
-     */
-    DOUBLE_ACCOUNTING(4),
-
-    /**
-     * No underline.
-     */
-    NONE(5);
-
-    private int value;
-
-
-    private FontUnderline(int val) {
-        value = val;
-    }
-
-    public int getValue() {
-        return value;
-    }
-
-    public byte getByteValue() {
-        switch (this) {
-            case DOUBLE:
-                return Font.U_DOUBLE;
-            case DOUBLE_ACCOUNTING:
-                return Font.U_DOUBLE_ACCOUNTING;
-            case SINGLE_ACCOUNTING:
-                return Font.U_SINGLE_ACCOUNTING;
-            case NONE:
-                return Font.U_NONE;
-            case SINGLE:
-                return Font.U_SINGLE;
-            default:
-                return Font.U_SINGLE;
-        }
-    }
-
-    private static FontUnderline[] _table = new FontUnderline[6];
-    static {
-        for (FontUnderline c : values()) {
-            _table[c.getValue()] = c;
-        }
-    }
-
-    public static FontUnderline valueOf(int value){
-        return _table[value];
-    }
-
-    public static FontUnderline valueOf(byte value){
-        FontUnderline val;
-        switch (value) {
-            case Font.U_DOUBLE:
-                val = FontUnderline.DOUBLE;
-                break;
-            case Font.U_DOUBLE_ACCOUNTING:
-                val = FontUnderline.DOUBLE_ACCOUNTING;
-                break;
-            case Font.U_SINGLE_ACCOUNTING:
-                val = FontUnderline.SINGLE_ACCOUNTING;
-                break;
-            case Font.U_SINGLE:
-                val = FontUnderline.SINGLE;
-                break;
-            default:
-                val = FontUnderline.NONE;
-                break;
-        }
-        return val;
-    }
-
-}