--- /dev/null	Mon Jan 26 16:14:21 2009
+++ new/test/java/math/BigDecimal/ToPlainStringTests.java	Mon Jan 26 16:14:20 2009
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2004 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 4984872
+ * @summary Basic tests of toPlainString method
+ * @author Joseph D. Darcy
+ * @compile -source 1.5 ToPlainStringTests.java
+ * @run main ToPlainStringTests
+ */
+
+import java.math.*;
+
+public class ToPlainStringTests {
+    public static void main(String argv[]) {
+        String [][] testCases = {
+            {"0",                       "0"},
+            {"1",                       "1"},
+            {"10",                      "10"},
+            {"2e1",                     "20"},
+            {"3e2",                     "300"},
+            {"4e3",                     "4000"},
+            {"5e4",                     "50000"},
+            {"6e5",                     "600000"},
+            {"7e6",                     "7000000"},
+            {"8e7",                     "80000000"},
+            {"9e8",                     "900000000"},
+            {"1e9",                     "1000000000"},
+
+            {".0",                      "0.0"},
+            {".1",                      "0.1"},
+            {".10",                     "0.10"},
+            {"1e-1",                    "0.1"},
+            {"1e-1",                    "0.1"},
+            {"2e-2",                    "0.02"},
+            {"3e-3",                    "0.003"},
+            {"4e-4",                    "0.0004"},
+            {"5e-5",                    "0.00005"},
+            {"6e-6",                    "0.000006"},
+            {"7e-7",                    "0.0000007"},
+            {"8e-8",                    "0.00000008"},
+            {"9e-9",                    "0.000000009"},
+            {"9000e-12",                "0.000000009000"},
+        };
+
+        int errors = 0;
+        for(String[] testCase: testCases) {
+            BigDecimal bd = new BigDecimal(testCase[0]);
+            String s;
+
+            if (!(s=bd.toPlainString()).equals(testCase[1])) {
+                errors++;
+                System.err.println("Unexpected plain result ``" +
+                                   s + "'' from BigDecimal " +
+                                   bd);
+            }
+
+            if (!(s=("-"+bd.toPlainString())).equals("-"+testCase[1])) {
+                errors++;
+                System.err.println("Unexpected plain result ``" +
+                                   s + "'' from BigDecimal " +
+                                   bd);
+            }
+        }
+
+        if(errors > 0)
+            throw new RuntimeException(errors + " errors during run.");
+    }
+}