jdk-24/test/langtools/jdk/jshell/TerminalNoExecTest.java
2024-06-28 09:31:14 +00:00

97 lines
3.6 KiB
Java

/*
* Copyright (c) 2024, 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 8334433
* @summary Verify that when running JShell on platforms that support FFMTerminalProvider,
* no new processes are spawned.
* @requires os.family == "windows" | os.family == "mac" | os.family == "linux"
* @library /tools/lib
* @modules jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.main
* jdk.compiler/com.sun.tools.javac.util
* @build toolbox.ToolBox toolbox.JavaTask TerminalNoExecTest
* @run main TerminalNoExecTest
*/
import java.io.Writer;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import jdk.jfr.consumer.RecordingStream;
import jdk.jshell.tool.JavaShellToolBuilder;
import toolbox.ToolBox;
public class TerminalNoExecTest {
public static void main(String... args) throws Exception {
if (args.length > 0) {
AtomicBoolean spawnedNewProcess = new AtomicBoolean();
try (var rs = new RecordingStream()) {
rs.enable("jdk.ProcessStart").withoutThreshold();
rs.onEvent(evt -> {
System.err.println("evt: " + evt);
spawnedNewProcess.set(true);
});
rs.startAsync();
JavaShellToolBuilder.builder().run("--execution=local", "--no-startup");
rs.stop();
}
if (spawnedNewProcess.get()) {
System.err.println("Spawned a new process!");
System.exit(1);
}
System.exit(0);
} else {
Path testScript = Paths.get("do-exit");
try (Writer w = Files.newBufferedWriter(testScript)) {
w.append("/exit\n");
}
ToolBox tb = new ToolBox();
Process target =
new ProcessBuilder(tb.getJDKTool("java").toString(),
"-classpath", System.getProperty("java.class.path"),
TerminalNoExecTest.class.getName(),
"run-test")
.redirectError(ProcessBuilder.Redirect.INHERIT)
.redirectOutput(ProcessBuilder.Redirect.INHERIT)
.redirectInput(testScript.toFile())
.start();
target.waitFor();
int exitCode = target.exitValue();
if (exitCode != 0) {
throw new AssertionError("Incorrect exit value, expected 0, got: " + exitCode);
}
}
}
}