Test6859338.java

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/**
 * @test
 * @bug 6859338
 * @summary Assertion failure in sharedRuntime.cpp
 *
 * @requires vm.compiler1.enabled | !vm.graal.enabled
 * @run main/othervm -Xcomp -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions
 *      -XX:-InlineObjectHash -Xbatch -XX:-ProfileInterpreter
 *      compiler.runtime.Test6859338
 */

package compiler.runtime;

public class Test6859338 {
    static Object[] o = new Object[] { new Object(), null };
    public static void main(String[] args) {
        int total = 0;
        try {
            // Exercise the implicit null check in the unverified entry point
            for (int i = 0; i < 40000; i++) {
                int limit = o.length;
                if (i < 20000) limit = 1;
                for (int j = 0; j < limit; j++) {
                    total += o[j].hashCode();
                }
            }

        } catch (NullPointerException e) {
            // this is expected.  A true failure causes a crash
        }
    }
}