jdk/test/java/lang/invoke/ObjectMethodInInterfaceTest.java

/*
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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
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/* @test
 * @bug 8031502
 * @summary JSR292: IncompatibleClassChangeError in LambdaForm for CharSequence.toString() method handle type converter
 * @compile ObjectMethodInInterfaceTest.java
 * @run main/othervm -Djava.lang.invoke.MethodHandle.COMPILE_THRESHOLD=0 test.java.lang.invoke.ObjectMethodInInterfaceTest
 */
package test.java.lang.invoke;

import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;

public class ObjectMethodInInterfaceTest {
    public static void main(String[] args) throws Throwable {
        MethodHandle mh = MethodHandles.lookup().findVirtual(CharSequence.class, "toString", MethodType.methodType(String.class));
        MethodType mt = MethodType.methodType(Object.class, CharSequence.class);
        mh = mh.asType(mt);

        Object res = mh.invokeExact((CharSequence)"123");

        System.out.println("TEST PASSED");
    }
}