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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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
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/*
 * @test id=debug
 * @bug 8251158
 * @library /test/lib
 * @modules java.base/jdk.internal.misc java.management
 * @build jdk.test.whitebox.WhiteBox
 * @requires (vm.debug == true)
 * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI  -XX:VerifyMetaspaceInterval=10                                        TestMetaspaceAllocation
 */

/*
 * @test id=ndebug
 * @bug 8251158
 * @library /test/lib
 * @modules java.base/jdk.internal.misc java.management
 * @build jdk.test.whitebox.WhiteBox
 * @requires (vm.debug == false)
 * @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI TestMetaspaceAllocation
 */

import jdk.test.lib.Unit;

public class TestMetaspaceAllocation {

    public static void main(String[] args) {

        MetaspaceTestContext context = new MetaspaceTestContext();
        MetaspaceTestArena arena1 = context.createArena(false, 32L * Unit.M.size());
        MetaspaceTestArena arena2 = context.createArena(true, 32L * Unit.M.size());

        Allocation a1 = arena1.allocate(800);
        Allocation a2 = arena2.allocate(800);

        long used = context.usedBytes();
        long committed = context.committedBytes();

        System.out.println("used " + used + " committed " + committed);

        arena1.deallocate(a1);

        context.destroyArena(arena2);
        context.destroyArena(arena1);

        context.purge();

        context.destroy();

    }
}