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/*
* Copyright (c) 2024, 2025, 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.
*/
import jdk.test.lib.JDKToolFinder;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
import java.nio.file.Files;
import java.nio.file.Path;
/*
* @test
* @bug 8336382
* @summary Test that in absence of isHeadless method, the JDK throws a meaningful error message.
* @library /test/lib
* @requires os.family == "linux"
* @build HeadlessMalfunctionAgent
* @run driver jdk.test.lib.helpers.ClassFileInstaller
* HeadlessMalfunctionAgent
* HeadlessMalfunctionAgent$1
* @run driver HeadlessMalfunctionTest
*/
public class HeadlessMalfunctionTest {
public static void main(String[] args) throws Exception {
// Package agent
Files.writeString(Path.of("MANIFEST.MF"), "Premain-Class: HeadlessMalfunctionAgent\n");
final ProcessBuilder pbJar = new ProcessBuilder()
.command(JDKToolFinder.getJDKTool("jar"), "cmf", "MANIFEST.MF", "agent.jar",
"HeadlessMalfunctionAgent.class",
"HeadlessMalfunctionAgent$1.class");
ProcessTools.executeProcess(pbJar).shouldHaveExitValue(0);
// Run test
final ProcessBuilder pbJava = ProcessTools.createTestJavaProcessBuilder(
"-javaagent:agent.jar",
"HeadlessMalfunctionTest$Runner"
);
final OutputAnalyzer output = ProcessTools.executeProcess(pbJava);
// Unpatched JDK logs: "FATAL ERROR in native method: Could not allocate library name"
// Patched should mention that isHeadless is missing, log message differs between OSes;
// e.g. LWCToolkit toolkit path on MacOS and Win32GraphicsEnvironment code path on Windows
// logs "java.lang.NoSuchMethodError: 'boolean java.awt.GraphicsEnvironment.isHeadless()'",
// whereas Linux logs "FATAL ERROR in native method: GetStaticMethodID isHeadless failed"
output.shouldContain("FATAL ERROR in native method: GetStaticMethodID isHeadless failed");
output.shouldNotHaveExitValue(0);
}
public static class Runner {
public static void main(String[] args) {
System.out.println(java.awt.GraphicsEnvironment
.getLocalGraphicsEnvironment()
.getMaximumWindowBounds());
}
}
}
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