DeadCode1.java revision 0
/*
* 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 4057345 4120016 4120014
* @summary try-catch 1: Verify that overzealous dead-code elimination no
* longer removes live code.
* @author dps
*
* @run clean DeadCode1
* @run compile -O DeadCode1.java
* @run main DeadCode1
*/
public class DeadCode1
{
public static int test() {
Object[] arrayref = null;
try {
Object obj = arrayref[0];
return 2;
} catch (NullPointerException e) {
return 0;
}
}
public static void main(String[] args) {
int ret = test();
if (ret == 2)
throw new RuntimeException("test() = 2; accidental removal of live code");
else
System.out.println("correct dead-code elimination");
}
}