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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
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63
test/jdk/java/util/Formatter/NullArg.java Normal file
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/*
* Copyright (c) 2015, 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 8039390
* @summary Basic test for null argument
*/
import java.util.Formatter;
import java.util.Locale;
public class NullArg {
public static void main(String [] args) {
char[] cs = new char[] {
'b', 'B', 'h', 'H', 's', 'S', 'c', 'C', 'd', 'o', 'x', 'X',
'e', 'E', 'f', 'g', 'G', 'a', 'A', 't', 'T',
};
char[] tcs = new char[] {
'H', 'I', 'k', 'l', 'l', 'M', 'S', 'L', 'N', 'p', 'z', 'Z', 's',
'Q', 'B', 'b', 'h', 'A', 'a', 'C', 'Y', 'y', 'j', 'm', 'd', 'e',
'R', 'T', 'r', 'D', 'F', 'c'
};
for (char c : cs) {
String expected = (c == 'b' || c == 'B') ? "false" : "null";
if (Character.isUpperCase(c)) {
expected = expected.toUpperCase(Locale.ROOT);
}
if (c == 't' || c == 'T') {
for (char ct : tcs) {
if (!String.format("%" + c + ct, null).equals(expected)) {
throw new RuntimeException("%t" + ct + "null check failed.");
}
}
} else {
if (!String.format("%" + c , null).equals(expected)) {
throw new RuntimeException("%" + c + "null check failed.");
}
}
}
}
}