test/jdk/jdk/jfr/event/runtime/TestThrowableInstrumentation.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
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 * 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).
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package jdk.jfr.event.runtime;

import sun.hotspot.WhiteBox;
import java.util.Objects;
import jdk.test.lib.Platform;

/*
 * @test
 * @bug 8153324
 * @summary Verify instrumented Throwable bytecode by compiling it with C1.
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 *          java.management
 * @requires vm.compMode!="Xint"
 * @build  sun.hotspot.WhiteBox
 * @run main ClassFileInstaller sun.hotspot.WhiteBox
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
 *                   -Xbatch -XX:StartFlightRecording=dumponexit=true jdk.jfr.event.runtime.TestThrowableInstrumentation
 */
public class TestThrowableInstrumentation {
    private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
    private static int COMP_LEVEL_SIMPLE = 1;

    private static boolean isTieredCompilationEnabled() {
        return Boolean.valueOf(Objects.toString(WHITE_BOX.getVMFlag("TieredCompilation")));
    }

    public static void main(String[] args) {
        // Compile Throwable::<clinit> with C1 (if available)
        if (!WHITE_BOX.enqueueInitializerForCompilation(java.lang.Throwable.class, COMP_LEVEL_SIMPLE)) {
          if (!Platform.isServer() || isTieredCompilationEnabled() || Platform.isEmulatedClient()) {
            throw new RuntimeException("Unable to compile Throwable::<clinit> with C1");
          }
        }
    }
}