hotspot/test/gc/g1/Test2GbHeap.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test Test2GbHeap
 * @bug 8031686
 * @summary Regression test to ensure we can start G1 with 2gb heap.
 * Skip test on 32 bit system: it typically does not support the many and large virtual memory reservations needed.
 * @requires vm.gc.G1
 * @requires vm.bits != "32"
 * @key gc
 * @key regression
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 *          java.management
 */

import java.util.ArrayList;

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

public class Test2GbHeap {
  public static void main(String[] args) throws Exception {
    ArrayList<String> testArguments = new ArrayList<String>();

    testArguments.add("-XX:+UseG1GC");
    testArguments.add("-Xmx2g");
    testArguments.add("-version");

    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(testArguments.toArray(new String[0]));

    OutputAnalyzer output = new OutputAnalyzer(pb.start());
    output.shouldHaveExitValue(0);
  }
}