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/lang/IO/IO.java
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199
test/jdk/java/lang/IO/IO.java
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/*
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* Copyright (c) 2023, 2025, 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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import java.io.Writer;
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import java.lang.reflect.Method;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.util.ArrayList;
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import java.util.stream.Stream;
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.process.ProcessTools;
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import org.junit.jupiter.api.Assumptions;
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import org.junit.jupiter.api.BeforeAll;
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import org.junit.jupiter.api.Nested;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.condition.EnabledOnOs;
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import org.junit.jupiter.api.condition.OS;
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import org.junit.jupiter.api.extension.AfterTestExecutionCallback;
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import org.junit.jupiter.api.extension.BeforeTestExecutionCallback;
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import org.junit.jupiter.api.extension.ExtendWith;
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import org.junit.jupiter.api.extension.ExtensionContext;
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import org.junit.jupiter.params.ParameterizedTest;
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import org.junit.jupiter.params.provider.Arguments;
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import org.junit.jupiter.params.provider.MethodSource;
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import org.junit.jupiter.params.provider.ValueSource;
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import static org.junit.jupiter.api.Assertions.*;
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/*
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* @test
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* @bug 8305457 8342936 8351435 8344706 8361613
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* @summary java.lang.IO tests
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* @library /test/lib
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* @run junit IO
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*/
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@ExtendWith(IO.TimingExtension.class)
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public class IO {
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@Nested
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@EnabledOnOs({OS.LINUX, OS.MAC})
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public class OSSpecificTests {
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private static Path expect;
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@BeforeAll
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public static void prepareTTY() {
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expect = Paths.get("/usr/bin/expect"); // os-specific path
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if (!Files.exists(expect) || !Files.isExecutable(expect)) {
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Assumptions.abort("'" + expect + "' not found");
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}
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try {
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var outputAnalyzer = ProcessTools.executeProcess(
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expect.toAbsolutePath().toString(), "-version");
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outputAnalyzer.reportDiagnosticSummary();
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} catch (Exception _) { }
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}
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@ParameterizedTest
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@ValueSource(strings = {"println", "print"})
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public void outputTestInteractive(String mode) throws Exception {
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var testSrc = System.getProperty("test.src", ".");
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OutputAnalyzer output = ProcessTools.executeProcess(
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expect.toString(),
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Path.of(testSrc, "output.exp").toAbsolutePath().toString(),
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System.getProperty("test.jdk") + "/bin/java",
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Path.of(testSrc, "Output.java").toAbsolutePath().toString(),
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mode);
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assertEquals(0, output.getExitValue());
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assertTrue(output.getStderr().isEmpty());
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output.reportDiagnosticSummary();
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String out = output.getStdout();
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// The first half of the output is produced by Console, the second
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// half is produced by IO: those halves must match.
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// Executing Console and IO in the same VM (as opposed to
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// consecutive VM runs, which are cleaner) to be able to compare string
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// representation of objects.
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assertFalse(out.isBlank());
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assertEquals(out.substring(0, out.length() / 2),
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out.substring(out.length() / 2));
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}
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/*
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* This tests simulates terminal interaction (isatty), to check that the
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* prompt is output.
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*
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* To simulate a terminal, the test currently uses the EXPECT(1) Unix
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* command, which does not work for Windows. Later, a library like pty4j
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* or JPty might be used instead of EXPECT, to cover both Unix and Windows.
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*/
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@ParameterizedTest
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@MethodSource("args")
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public void inputTestInteractive(String prompt) throws Exception {
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var testSrc = System.getProperty("test.src", ".");
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var command = new ArrayList<String>();
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command.add(expect.toString());
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String expectInputName = PROMPT_NONE.equals(prompt) ? "input-no-prompt"
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: "input";
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command.add(Path.of(testSrc, expectInputName + ".exp").toAbsolutePath().toString());
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command.add(System.getProperty("test.jdk") + "/bin/java");
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command.add(Path.of(testSrc, "Input.java").toAbsolutePath().toString());
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command.add(prompt == null ? "0" : PROMPT_NONE.equals(prompt) ? "2" : "1");
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command.add(String.valueOf(prompt));
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OutputAnalyzer output = ProcessTools.executeProcess(command.toArray(new String[]{}));
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output.reportDiagnosticSummary();
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assertEquals(0, output.getExitValue());
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}
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private static final String PROMPT_NONE = "prompt-none";
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public static Stream<Arguments> args() {
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// prompts
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return Stream.of(null, "?", "%s", PROMPT_NONE).map(Arguments::of);
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}
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}
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@Test //JDK-8342936
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public void printlnNoParamsTest() throws Exception {
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var file = Path.of("PrintlnNoParams.java");
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try (Writer w = Files.newBufferedWriter(file)) {
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w.write("""
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import static java.lang.IO.*;
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void main() {
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print("1 ");
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print("2 ");
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print("3 ");
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println();
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}
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""");
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}
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var pb = ProcessTools.createTestJavaProcessBuilder("-Xlog:aot=off", "-Xlog:cds=off", file.toString());
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OutputAnalyzer output = ProcessTools.executeProcess(pb);
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assertEquals(0, output.getExitValue());
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assertTrue(output.getStderr().isEmpty());
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output.reportDiagnosticSummary();
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String out = output.getStdout();
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String nl = System.getProperty("line.separator");
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assertEquals("1 2 3 " + nl, out);
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}
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// adapted from https://junit.org/junit5/docs/current/user-guide/#extensions-lifecycle-callbacks-timing-extension
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// remove after CODETOOLS-7903752 propagates to jtreg that this test is routinely run by
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public static class TimingExtension implements BeforeTestExecutionCallback,
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AfterTestExecutionCallback {
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private static final System.Logger logger = System.getLogger(
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TimingExtension.class.getName());
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private static final String START_TIME = "start time";
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@Override
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public void beforeTestExecution(ExtensionContext context) {
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getStore(context).put(START_TIME, time());
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}
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@Override
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public void afterTestExecution(ExtensionContext context) {
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Method testMethod = context.getRequiredTestMethod();
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long startTime = getStore(context).remove(START_TIME, long.class);
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long duration = time() - startTime;
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logger.log(System.Logger.Level.INFO, () ->
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String.format("Method [%s] took %s ms.", testMethod.getName(), duration));
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}
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private ExtensionContext.Store getStore(ExtensionContext context) {
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return context.getStore(ExtensionContext.Namespace.create(getClass(),
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context.getRequiredTestMethod()));
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}
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private long time() {
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return System.nanoTime() / 1_000_000;
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}
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}
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}
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