--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/tools/MakeDeps/FileName.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,119 @@
+/*
+ * Copyright 1999 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+public class FileName {
+    private String dir;
+    private String prefix;
+    private String stem;
+    private String suffix;
+    private String inverseDir;
+    private String altSuffix;
+
+    private String dpss;
+    private String psa;
+    private String dpsa;
+    private String pss;
+
+    private Platform plat;
+
+    /** None of the passed strings may be null. */
+
+    public FileName(Platform plat, String dir, String prefix,
+                    String stem, String suffix,
+                    String inverseDir, String altSuffix) {
+        if ((dir == null) ||
+            (prefix == null) ||
+            (stem == null) ||
+            (suffix == null) ||
+            (inverseDir == null) ||
+            (altSuffix == null)) {
+            throw new NullPointerException("All arguments must be non-null");
+        }
+
+        this.plat = plat;
+
+        this.dir = dir;
+        this.prefix = prefix;
+        this.stem = stem;
+        this.suffix = suffix;
+        this.inverseDir = inverseDir;
+        this.altSuffix = altSuffix;
+
+        pss = prefix + stem + suffix;
+        dpss = dir + prefix + stem + suffix;
+        psa = prefix + stem + altSuffix;
+        dpsa = dir + prefix + stem + altSuffix;
+
+        checkLength(plat);
+    }
+
+    public void checkLength(Platform p) {
+        int len;
+        String s;
+        int suffLen = suffix.length();
+        int altSuffLen = altSuffix.length();
+        if (suffLen >= altSuffLen) {
+            len = suffLen;
+            s = suffix;
+        } else {
+            len = altSuffLen;
+            s = altSuffix;
+        }
+        len += prefix.length() + stem.length();
+        int lim = p.fileNameLengthLimit();
+        if (len > lim) {
+            p.fatalError(prefix + stem + s + " is too long: " +
+                         len + " >= " + lim);
+        }
+    }
+
+    public String dirPreStemSuff() {
+        return dpss;
+    }
+
+    public String preStemSuff() {
+        return pss;
+    }
+
+    public String dirPreStemAltSuff() {
+        return dpsa;
+    }
+
+    public String preStemAltSuff() {
+        return psa;
+    }
+
+    public FileName copyStem(String newStem) {
+        return new FileName(plat, dir, prefix, newStem,
+                            suffix, inverseDir, altSuffix);
+    }
+
+    String nameOfList() {
+        return stem;
+    }
+
+    String getInvDir() {
+        return inverseDir;
+    }
+}