--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/nio/channels/FileChannel/Size.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2000-2006 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 4563125
+ * @summary Test size method of FileChannel
+ */
+
+import java.io.*;
+import java.nio.MappedByteBuffer;
+import java.nio.channels.*;
+import java.util.Random;
+
+
+/**
+ * Testing FileChannel's size method.
+ */
+
+public class Size {
+
+    private static Random generator = new Random();
+
+    private static File blah;
+
+    public static void main(String[] args) throws Exception {
+        test1();
+        test2();
+    }
+
+    private static void test1() throws Exception {
+        blah = File.createTempFile("blah", null);
+        blah.deleteOnExit();
+        for(int i=0; i<100; i++) {
+            long testSize = generator.nextInt(1000);
+            initTestFile(blah, testSize);
+            FileInputStream fis = new FileInputStream(blah);
+            FileChannel c = fis.getChannel();
+            if (c.size() != testSize)
+                throw new RuntimeException("Size failed");
+            c.close();
+            fis.close();
+        }
+        blah.delete();
+    }
+
+    // Test for bug 4563125
+    private static void test2() throws Exception {
+        // Windows and Linux can't handle the really large file sizes for a truncate
+        // or a positional write required by the test for 4563125
+        String osName = System.getProperty("os.name");
+        if (osName.startsWith("SunOS")) {
+            blah = File.createTempFile("blah", null);
+            long testSize = ((long)Integer.MAX_VALUE) * 2;
+            initTestFile(blah, 10);
+            RandomAccessFile raf = new RandomAccessFile(blah, "rw");
+            FileChannel fc = raf.getChannel();
+            fc.size();
+            fc.map(FileChannel.MapMode.READ_WRITE, testSize, 10);
+            if (fc.size() != testSize + 10)
+                throw new RuntimeException("Size failed " + fc.size());
+            fc.close();
+            raf.close();
+            blah.delete();
+        }
+    }
+
+    /**
+     * Creates file blah of specified size in bytes.
+     *
+     */
+    private static void initTestFile(File blah, long size) throws Exception {
+        if (blah.exists())
+            blah.delete();
+        FileOutputStream fos = new FileOutputStream(blah);
+        BufferedWriter awriter
+            = new BufferedWriter(new OutputStreamWriter(fos, "8859_1"));
+
+        for(int i=0; i<size; i++) {
+            awriter.write("e");
+        }
+        awriter.flush();
+        awriter.close();
+    }
+}