jdk-24/test/hotspot/jtreg/vmTestbase/nsk/jvmti/AttachOnDemand/attach010/attach010Agent00.java

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/*
* Copyright (c) 2007, 2018, 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.
*/
package nsk.jvmti.AttachOnDemand.attach010;
import nsk.share.aod.AbstractJarAgent;
import java.io.*;
import java.lang.instrument.Instrumentation;
public class attach010Agent00 extends AbstractJarAgent {
private static final String outStreamFileName = "AttachOnDemand.attach010.out";
private static final String errStreamFileName = "AttachOnDemand.attach010.err";
private static final String inStreamFileName = "AttachOnDemand.attach010.in";
protected void agentActions() throws Throwable {
PrintStream newOutStream = new PrintStream(outStreamFileName);
PrintStream newErrStream = new PrintStream(errStreamFileName);
System.setOut(newOutStream);
System.out.println("Print to the new System.out");
System.setErr(newErrStream);
System.err.println("Print to the new System.err");
/*
* Check input stream
*/
final int valueToWrite = 100;
PrintStream inputFileStream = new PrintStream(inStreamFileName);
try {
inputFileStream.println(valueToWrite);
} finally {
inputFileStream.close();
}
FileInputStream newInputStream = new FileInputStream(inStreamFileName);
System.setIn(newInputStream);
BufferedReader inputStreamReader = new BufferedReader(new InputStreamReader(System.in));
int readValue = Integer.parseInt(inputStreamReader.readLine());
if (readValue != valueToWrite) {
setStatusFailed("Unexpected value was read from input stream: " + readValue + ", expected value is " + valueToWrite);
}
}
public static void agentmain(String options, Instrumentation inst) {
new attach010Agent00().runJarAgent(options, inst);
}
}