Java example source code file (JsrRewriting.java)

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Java - Java tags/keywords

exception, jsrrewriting, main, multipleormatch, oomcrashclass4000_1, output, outputanalyzer, processbuilder, string, stringbuilder, xx\:\+unlockdiagnosticvmoptions, xx\:mallocmaxtestwords

The JsrRewriting.java Java example source code

/*
 * Copyright (c) 2011, 2013, 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 JsrRewriting
 * @summary JSR (jump local subroutine)
 *      rewriting can overflow memory address size variables
 * @bug 7020373
 * @bug 7055247
 * @bug 7053586
 * @bug 7185550
 * @bug 7149464
 * @key cte_test
 * @library /testlibrary
 * @run main JsrRewriting
 */

import com.oracle.java.testlibrary.*;
import java.io.File;

public class JsrRewriting {

    public static void main(String[] args) throws Exception {

        // ======= Configure the test
        String jarFile = System.getProperty("test.src") +
            File.separator + "JsrRewritingTestCase.jar";
        String className = "OOMCrashClass4000_1";

        // limit is 768MB in native words
        int mallocMaxTestWords = (1024 * 1024 * 768 / 4);
        if (Platform.is64bit())
            mallocMaxTestWords = (mallocMaxTestWords / 2);

        // ======= extract the test class
        ProcessBuilder pb = new ProcessBuilder(new String[] {
            JDKToolFinder.getJDKTool("jar"),
            "xvf", jarFile } );
        OutputAnalyzer output = new OutputAnalyzer(pb.start());
        output.shouldHaveExitValue(0);

        // ======= execute the test
        pb = ProcessTools.createJavaProcessBuilder(
            "-cp", ".",
            "-XX:+UnlockDiagnosticVMOptions",
            "-XX:MallocMaxTestWords=" + mallocMaxTestWords,
            className);

        output = new OutputAnalyzer(pb.start());
        String[] expectedMsgs = {
            "java.lang.LinkageError",
            "java.lang.NoSuchMethodError",
            "Main method not found in class " + className,
            "insufficient memory"
        };

        MultipleOrMatch(output, expectedMsgs);
    }

    private static void
        MultipleOrMatch(OutputAnalyzer analyzer, String[] whatToMatch) {
            String output = analyzer.getOutput();

            for (String expected : whatToMatch)
                if (output.contains(expected))
                    return;

            String err =
                " stdout: [" + analyzer.getOutput() + "];\n" +
                " exitValue = " + analyzer.getExitValue() + "\n";
            System.err.println(err);

            StringBuilder msg = new StringBuilder("Output did not contain " +
                "any of the following expected messages: \n");
            for (String expected : whatToMatch)
                msg.append(expected).append(System.lineSeparator());
            throw new RuntimeException(msg.toString());
    }
}