Mercurial > jdk8-mips64-public > langtools / file revision

 /*

  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.

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

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.  Oracle designates this

  * particular file as subject to the "Classpath" exception as provided

  * by Oracle in the LICENSE file that accompanied this code.

  *

  * 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).

  *

  * You should have received a copy of the GNU General Public License version

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

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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  */

 /**

  * @test

  * @ignore 8007517: DefaultMethodRegressionTests.java fail in TL

  * @bug 8003639

  * @summary convert lambda testng tests to jtreg and add them

  * @run testng DefaultMethodRegressionTests

  */

 import java.util.ArrayList;

 import java.util.Arrays;

 import java.util.List;

 import org.testng.annotations.Test;

 import static org.testng.Assert.*;

 /**

  * This set of classes/interfaces (K/I/C) is specially designed to expose a

  * bug in the JVM where it did not find some overloaded methods in some

  * specific situations. (fixed by hotspot changeset ffb9316fd9ed)

  */

 interface K {

     int bbb(Long l);

 }

 interface I extends K {

     default void aaa() {}

     default void aab() {}

     default void aac() {}

     default int bbb(Integer i) { return 22; }

     default int bbb(Float f) { return 33; }

     default int bbb(Long l) { return 44; }

     default int bbb(Double d) { return 55; }

     default int bbb(String s) { return 66; }

     default void caa() {}

     default void cab() {}

     default void cac() {}

 }

 class C implements I {}

 public class DefaultMethodRegressionTests {

     @Test(groups = "vm")

     public void testLostOverloadedMethod() {

         C c = new C();

         assertEquals(c.bbb(new Integer(1)), 22);

         assertEquals(c.bbb(new Float(1.1)), 33);

         assertEquals(c.bbb(new Long(1L)), 44);

         assertEquals(c.bbb(new Double(0.01)), 55);

         assertEquals(c.bbb(new String("")), 66);

     }

     // Test to ensure that the inference verifier accepts older classfiles

     // with classes that implement interfaces with defaults.

     @Test(groups = "vm")

     public void testInferenceVerifier() {

         // interface I { int m() default { return 99; } }

         byte I_bytes[] = {

             (byte)0xca, (byte)0xfe, (byte)0xba, (byte)0xbe, 0x00, 0x00, 0x00, 0x33,

             0x00, 0x08, 0x07, 0x00, 0x06, 0x07, 0x00, 0x07,

             0x01, 0x00, 0x03, 0x66, 0x6f, 0x6f, 0x01, 0x00,

             0x03, 0x28, 0x29, 0x49, 0x01, 0x00, 0x04, 0x43,

             0x6f, 0x64, 0x65, 0x01, 0x00, 0x01, 0x49, 0x01,

             0x00, 0x10, 0x6a, 0x61, 0x76, 0x61, 0x2f, 0x6c,

             0x61, 0x6e, 0x67, 0x2f, 0x4f, 0x62, 0x6a, 0x65,

             0x63, 0x74, 0x06, 0x00, 0x00, 0x01, 0x00, 0x02,

             0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x01,

             0x00, 0x03, 0x00, 0x04, 0x00, 0x01, 0x00, 0x05,

             0x00, 0x00, 0x00, 0x0f, 0x00, 0x01, 0x00, 0x01,

             0x00, 0x00, 0x00, 0x03, 0x10, 0x63, (byte)0xac, 0x00,

             0x00, 0x00, 0x00, 0x00, 0x00

         };

         // public class C implements I {}  /* -target 1.5 */

         byte C_bytes[] = {

             (byte)0xca, (byte)0xfe, (byte)0xba, (byte)0xbe, 0x00, 0x00, 0x00, 0x31,

             0x00, 0x0c, 0x0a, 0x00, 0x03, 0x00, 0x08, 0x07,

             0x00, 0x09, 0x07, 0x00, 0x0a, 0x07, 0x00, 0x0b,

             0x01, 0x00, 0x06, 0x3c, 0x69, 0x6e, 0x69, 0x74,

             0x3e, 0x01, 0x00, 0x03, 0x28, 0x29, 0x56, 0x01,

             0x00, 0x04, 0x43, 0x6f, 0x64, 0x65, 0x0c, 0x00,

             0x05, 0x00, 0x06, 0x01, 0x00, 0x01, 0x43, 0x01,

             0x00, 0x10, 0x6a, 0x61, 0x76, 0x61, 0x2f, 0x6c,

             0x61, 0x6e, 0x67, 0x2f, 0x4f, 0x62, 0x6a, 0x65,

             0x63, 0x74, 0x01, 0x00, 0x01, 0x49, 0x00, 0x21,

             0x00, 0x02, 0x00, 0x03, 0x00, 0x01, 0x00, 0x04,

             0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x05,

             0x00, 0x06, 0x00, 0x01, 0x00, 0x07, 0x00, 0x00,

             0x00, 0x11, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00,

             0x00, 0x05, 0x2a, (byte)0xb7, 0x00, 0x01, (byte)0xb1, 0x00,

             0x00, 0x00, 0x00, 0x00, 0x00

         };

         ClassLoader cl = new ClassLoader() {

             protected Class<?> findClass(String name) {

                 if (name.equals("I")) {

                     return defineClass("I", I_bytes, 0, I_bytes.length);

                 } else if (name.equals("C")) {

                     return defineClass("C", C_bytes, 0, C_bytes.length);

                 } else {

                     return null;

                 }

             }

         };

         try {

             Class.forName("C", true, cl);

         } catch (Exception e) {

             // unmodified verifier will throw VerifyError

             fail("No exception should be thrown");

         }

     }

 }