1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/test/tools/javac/BadOptimization/DeadCode3.java Sat Dec 01 00:00:00 2007 +0000 1.3 @@ -0,0 +1,58 @@ 1.4 +/* 1.5 + * Copyright 1999 Sun Microsystems, Inc. All Rights Reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. 1.11 + * 1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.15 + * version 2 for more details (a copy is included in the LICENSE file that 1.16 + * accompanied this code). 1.17 + * 1.18 + * You should have received a copy of the GNU General Public License version 1.19 + * 2 along with this work; if not, write to the Free Software Foundation, 1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.21 + * 1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or 1.24 + * have any questions. 1.25 + */ 1.26 + 1.27 +/* 1.28 + * @test 1.29 + * @bug 4057345 4120016 4120014 1.30 + * @summary final void function: Verify that overzealous dead-code elimination 1.31 + * no longer removes live code. 1.32 + * @author dps 1.33 + * 1.34 + * @run clean DeadCode3 1.35 + * @run compile -O DeadCode3.java 1.36 + * @run main DeadCode3 1.37 + */ 1.38 + 1.39 +public class DeadCode3 1.40 +{ 1.41 + private final void fun1() { } 1.42 + 1.43 + private void fun2() { 1.44 + DeadCode3 r1 = null; 1.45 + fun1(); 1.46 + 1.47 + // we expect an NullPointerException because of this line 1.48 + r1.fun1(); 1.49 + } 1.50 + 1.51 + public static void main( String[] args ) { 1.52 + try { 1.53 + new DeadCode3() . fun2(); 1.54 + // if we got past the constructor, then there must be a problem 1.55 + throw new RuntimeException("accidental removal of live code"); 1.56 + } catch (NullPointerException e) { 1.57 + System.out.println("NullPointerException correctly thrown"); 1.58 + e.printStackTrace(); 1.59 + } 1.60 + } 1.61 +}