--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/io/File/IsAbsolute.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,63 @@
+/*
+ * Copyright 1997-1998 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.
+ */
+
+/* @test
+   @bug 4022397
+   @summary General test for isAbsolute
+ */
+
+import java.io.*;
+
+
+public class IsAbsolute {
+
+    private static void ck(String path, boolean ans) throws Exception {
+        File f = new File(path);
+        boolean x = f.isAbsolute();
+        if (x != ans)
+            throw new Exception(path + ": expected " + ans + ", got " + x);
+        System.err.println(path + " ==> " + x);
+    }
+
+    private static void testWin32() throws Exception {
+        ck("/foo/bar", false);
+        ck("\\foo\\bar", false);
+        ck("c:\\foo\\bar", true);
+        ck("c:/foo/bar", true);
+        ck("c:foo\\bar", false);
+        ck("\\\\foo\\bar", true);
+    }
+
+    private static void testUnix() throws Exception {
+        ck("foo", false);
+        ck("foo/bar", false);
+        ck("/foo", true);
+        ck("/foo/bar", true);
+    }
+
+    public static void main(String[] args) throws Exception {
+        if (File.separatorChar == '\\') testWin32();
+        if (File.separatorChar == '/') testUnix();
+    }
+
+}