diff -r fd16c54261b3 -r 06bc494ca11e langtools/test/tools/javac/BadOptimization/Switch2.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/BadOptimization/Switch2.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,55 @@
+/*
+ * 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.
+ */
+
+/*
+ * @test
+ * @bug 4099995 4118025
+ * @summary Bad optimization of "switch" statement
+ * @author dps
+ *
+ * @run clean Switch2
+ * @run compile -O Switch2.java
+ * @run main Switch2
+ */
+
+public class Switch2
+{
+    private boolean isZero( int d ) {
+        switch (d) {
+        case 0:
+            return true;
+        default:
+            return false;
+        }
+    }
+
+    void useSecondArgument( String a, int b ) {
+        if ( !isZero( b ) )
+            throw new RuntimeException("isZero(0) returns false?!");
+    }
+
+    public static void main( String[] args ) {
+        Switch2 object = new Switch2();
+        object.useSecondArgument( "42", 0 );
+    }
+}