--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/nio/charset/spi/Test.java	Wed Jan 27 19:39:55 2010 -0800
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2010 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.
+ */
+
+import java.io.*;
+import java.nio.charset.*;
+import java.util.*;
+
+
+public class Test {
+
+    private static PrintStream out = System.err;
+    private static final SortedMap available = Charset.availableCharsets();
+
+    private static void fail(String csn, String msg) {
+        throw new RuntimeException(csn + ": " + msg);
+    }
+
+    private static void testPositive(String csn) {
+        if (!Charset.isSupported(csn))
+            fail(csn, "Not supported");
+
+        Charset cs = Charset.forName(csn);
+        out.println(csn + " --> " + cs.getClass().getName());
+        out.println("  " + cs.name() + " " + cs.aliases());
+
+        if (!available.containsKey(cs.name()))
+            fail(csn, "Not in available charsets: " + available.keySet());
+        if (!((Charset)available.get(cs.name())).equals(cs))
+            fail(csn, "Available charset != looked-up charset");
+
+        if (csn.equalsIgnoreCase("FOO")) {
+            if (!(cs instanceof FooCharset))
+                fail(csn, "instanceof failed");
+        }
+    }
+
+    private static void testNegative(String csn) {
+        if (Charset.isSupported(csn))
+            fail(csn, "Supported");
+        if (available.containsKey(csn))
+            fail(csn, "Available");
+        try {
+            Charset.forName(csn);
+        } catch (UnsupportedCharsetException x) {
+            out.println(csn + " not supported, as expected");
+            return;
+        }
+        fail(csn, "Lookup succeeded");
+    }
+
+    public static void main(String [] args) {
+
+        out.println("Default: "
+                    + new InputStreamReader(System.in).getEncoding());
+
+        out.print("Available:");
+        for (Iterator i = available.keySet().iterator(); i.hasNext();)
+            out.print(" " + (String)i.next());
+        out.println();
+
+        for (int i = 0; i < args.length; i++) {
+            String a = args[i];
+            boolean not = a.startsWith("!");
+            String csn = (not ? a.substring(1) : a);
+            if (not)
+                testNegative(csn);
+            else
+                testPositive(csn);
+        }
+    }
+
+}