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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 *

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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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 *

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 * 2 along with this work; if not, write to the Free Software Foundation,

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 */

/*

 * @test

 * @bug 8181171

 * @summary Test deleting static method pointing to by a jmethod

 * @library /test/lib

 * @modules java.base/jdk.internal.misc

 * @modules java.compiler

 *          java.instrument

 *          jdk.jartool/sun.tools.jar

 * @run main RedefineClassHelper

 * @run main/native/othervm -javaagent:redefineagent.jar -Xlog:redefine+class*=trace RedefineDeleteJmethod

 */

class B {

    private static int deleteMe() { System.out.println("deleteMe called"); return 5; }

    public static int callDeleteMe() { return deleteMe(); }

}

public class RedefineDeleteJmethod {

    public static String newB =

        "class B {" +

            "public static int callDeleteMe() { return 6; }" +

        "}";

    public static String newerB =

        "class B {" +

            "private static int deleteMe() { System.out.println(\"deleteMe (2) called\"); return 7; }" +

            "public static int callDeleteMe() { return deleteMe(); }" +

        "}";

    static {

        System.loadLibrary("RedefineDeleteJmethod");

    }

    static native int jniCallDeleteMe();

    static void test(int expected, boolean nsme_expected) throws Exception {

        // Call through static method

        int res = B.callDeleteMe();

        System.out.println("Result = " + res);

        if (res != expected) {

            throw new Error("returned " + res + " expected " + expected);

        }

        // Call through jmethodID, saved from first call.

        try {

            res = jniCallDeleteMe();

            if (nsme_expected) {

                throw new RuntimeException("Failed, NoSuchMethodError expected");

            }

            if (res != expected) {

                throw new Error("returned " + res + " expected " + expected);

            }

        } catch (NoSuchMethodError ex) {

            if (!nsme_expected) {

                throw new RuntimeException("Failed, NoSuchMethodError not expected");

            }

            System.out.println("Passed, NoSuchMethodError expected");

        }

    }

    public static void main(String[] args) throws Exception {

        test(5, false);

        RedefineClassHelper.redefineClass(B.class, newB);

        test(6, true);

        RedefineClassHelper.redefineClass(B.class, newerB);

        test(7, true);

    }

}