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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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67
test/langtools/tools/javac/BadOptimization/DeadCode4.java Normal file
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/*
* Copyright (c) 1999, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 4057345 4120016 4120014
* @summary static init: Verify that overzealous dead-code elimination no
* longer removes live code.
* @author dps
*
* @run clean DeadCode4
* @run compile -O DeadCode4.java
* @run main DeadCode4
*/
class cls
{
static int arr[];
static {
arr = new int[2];
arr[0] = 0;
arr[1] = 2;
}
}
public class DeadCode4
{
final int x = 9;
private final void fun1() {
try {
int i = cls.arr[3];
// if we got here, then there must be a problem
throw new RuntimeException("accidental removal of live code");
} catch (ArrayIndexOutOfBoundsException e) {
System.out.println("ArrayIndexOutOfBoundsException correctly thrown");
e.printStackTrace();
}
}
public static void main( String[] args )
{
DeadCode4 r1 = new DeadCode4();
r1.fun1();
}
}