undefect. CWE-407 — 63 sites patched across 27 ecosystems
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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test/jdk/java/util/logging/ParentLoggersTest.java
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test/jdk/java/util/logging/ParentLoggersTest.java
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/*
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* Copyright (c) 2012, 2026, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 6498300 8377457 8379548
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*
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* @summary regression: parent loggers are not properly registered
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* @author ss45998
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*
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* @build ParentLoggersTest
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* @run main/othervm ParentLoggersTest
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*/
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/*
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* There are several original tests which were failed when
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* this regression was introduced. This is an extra test
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* to ensure that the parent loggers with the defined
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* .level property are implicitly registered.
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*/
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import java.util.*;
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import java.io.*;
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import java.util.logging.*;
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public class ParentLoggersTest {
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static final LogManager logMgr = LogManager.getLogManager();
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static final PrintStream out = System.out;
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static final boolean PASSED = true;
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static final boolean FAILED = false;
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static final String MSG_PASSED = "ParentLoggersTest: passed";
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static final String MSG_FAILED = "ParentLoggersTest: failed";
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/* Properties */
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static final String TST_SRC_PROP = "test.src";
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static final String CFG_FILE_PROP = "java.util.logging.config.file";
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static final String LM_PROP_FNAME = "ParentLoggersTest.props";
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/* Logger names */
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static final String PARENT_NAME_1 = "myParentLogger";
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static final String PARENT_NAME_2 = "abc.xyz.foo";
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static final String LOGGER_NAME_1 = PARENT_NAME_1 + ".myLogger";
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static final String LOGGER_NAME_2 = PARENT_NAME_2 + ".myBar.myLogger";
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static final List<String> initialLoggerNames = new ArrayList<>();
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static final List<Logger> createdLoggers = new ArrayList<>();
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public static void main(String args[]) throws Exception {
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// cache the initial set of loggers before this test begins
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// to add any loggers
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Enumeration<String> e = logMgr.getLoggerNames();
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List<String> defaultLoggers = getDefaultLoggerNames();
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while (e.hasMoreElements()) {
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String logger = e.nextElement();
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if (!defaultLoggers.contains(logger)) {
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initialLoggerNames.add(logger);
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}
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}
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System.out.println("# default loggers are: " + defaultLoggers);
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System.out.println("# initial loggers are: " + initialLoggerNames);
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String tstSrc = System.getProperty(TST_SRC_PROP);
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File fname = new File(tstSrc, LM_PROP_FNAME);
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String prop = fname.getCanonicalPath();
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System.setProperty(CFG_FILE_PROP, prop);
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logMgr.readConfiguration();
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System.out.println();
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if (checkLoggers() == PASSED) {
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System.out.println(MSG_PASSED);
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} else {
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System.out.println(MSG_FAILED);
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throw new Exception(MSG_FAILED);
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}
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}
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public static List<String> getDefaultLoggerNames() {
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List<String> expectedLoggerNames = new ArrayList<>();
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// LogManager always creates two loggers:
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expectedLoggerNames.add(""); // root logger: ""
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expectedLoggerNames.add("global"); // global logger: "global"
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return expectedLoggerNames;
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}
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/* Check: getLoggerNames() must return correct names
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* for registered loggers and their parents.
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* Returns boolean values: PASSED or FAILED
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*/
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public static boolean checkLoggers() {
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String failMsg = "# checkLoggers: getLoggerNames() returned unexpected loggers";
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List<String> expectedLoggerNames = new ArrayList<>(getDefaultLoggerNames());
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// Create the logger LOGGER_NAME_1
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createdLoggers.add(Logger.getLogger(LOGGER_NAME_1));
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expectedLoggerNames.add(PARENT_NAME_1);
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expectedLoggerNames.add(LOGGER_NAME_1);
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// Create the logger LOGGER_NAME_2
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createdLoggers.add(Logger.getLogger(LOGGER_NAME_2));
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expectedLoggerNames.add(PARENT_NAME_2);
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expectedLoggerNames.add(LOGGER_NAME_2);
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Enumeration<String> returnedLoggersEnum = logMgr.getLoggerNames();
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List<String> returnedLoggerNames = new ArrayList<>(0);
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while (returnedLoggersEnum.hasMoreElements()) {
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String logger = returnedLoggersEnum.nextElement();
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if (!initialLoggerNames.contains(logger)) {
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// filter out the loggers that have been added before this test runs
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returnedLoggerNames.add(logger);
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}
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}
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System.out.println("# Created loggers are: " +
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createdLoggers.stream().map(Logger::getName).toList());
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System.out.println("# Expected loggers are: " + expectedLoggerNames);
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System.out.println("# Returned loggers are: " + returnedLoggerNames);
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return checkNames(expectedLoggerNames, returnedLoggerNames, failMsg);
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}
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// Returns boolean values: PASSED or FAILED
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private static boolean checkNames(List<String> expNames,
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List<String> retNames,
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String failMsg) {
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boolean status = PASSED;
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if (expNames.size() != retNames.size()) {
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status = FAILED;
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} else if (!new HashSet<>(expNames).equals(new HashSet<>(retNames))) {
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status = FAILED;
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}
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if (!status) {
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printFailMsg(expNames, retNames, failMsg);
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}
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return status;
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}
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private static void printFailMsg(List<String> expNames,
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List<String> retNames,
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String failMsg) {
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out.println();
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out.println(failMsg);
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if (expNames.isEmpty()) {
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out.println("# there are NO expected logger names");
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} else {
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out.println("# expected logger names (" + expNames.size() + "):");
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for (int i = 0; i < expNames.size(); i++) {
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out.println(" expNames[" + i + "] = " + expNames.get(i));
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}
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}
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if (retNames.isEmpty()) {
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out.println("# there are NO returned logger names");
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} else {
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out.println("# returned logger names (" + retNames.size() + "):");
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for (int i = 0; i < retNames.size(); i++) {
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out.println(" retNames[" + i + "] = " + retNames.get(i));
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}
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}
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}
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}
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