TestExitOnOutOfMemoryError.java

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/*
 * @test TestExitOnOutOfMemoryError
 * @summary Test using -XX:ExitOnOutOfMemoryError
 * @modules java.base/jdk.internal.misc
 * @library /test/lib
 * @run driver TestExitOnOutOfMemoryError
 * @bug 8138745
 */

import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;

public class TestExitOnOutOfMemoryError {

    public static void main(String[] args) throws Exception {
        if (args.length == 1) {
            // This should guarantee to throw:
            // java.lang.OutOfMemoryError: Requested array size exceeds VM limit
            try {
                Object[] oa = new Object[Integer.MAX_VALUE];
                throw new Error("OOME not triggered");
            } catch (OutOfMemoryError err) {
                throw new Error("OOME didn't terminate JVM!");
            }
        }

        // else this is the main test
        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+ExitOnOutOfMemoryError",
                "-Xmx64m", TestExitOnOutOfMemoryError.class.getName(), "throwOOME");
        OutputAnalyzer output = new OutputAnalyzer(pb.start());

        /*
         * Actual output should look like this:
         * Terminating due to java.lang.OutOfMemoryError: Requested array size exceeds VM limit
         */
        output.shouldHaveExitValue(3);
        output.stdoutShouldNotBeEmpty();
        output.shouldContain("Terminating due to java.lang.OutOfMemoryError: Requested array size exceeds VM limit");
        System.out.println("PASSED");
    }
}