8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @bug 8015436
27 * @summary the IK _initial_method_idnum value must be adjusted if overpass methods are added
28 * @run main Test8015436
29 *
30 */
31
32 /*
33 * The test checks that a MemberName for the defaultMethod() is cached in
34 * the class MemberNameTable without a crash in the VM fastdebug mode.
35 * The original issue was that the InstanceKlass _initial_method_idnum was
36 * not adjusted properly when the overpass methods are added to the class.
37 * The expected/correct behavior: The test does not crash nor throw any exceptions.
38 * All the invocations of the defaultMethod() must be completed successfully.
39 */
40
41 import java.lang.invoke.*;
42
43 interface InterfaceWithDefaultMethod {
44 public void someMethod();
45
46 default public void defaultMethod(String str){
47 System.out.println("defaultMethod() " + str);
48 }
49 }
50
51 public class Test8015436 implements InterfaceWithDefaultMethod {
52 @Override
53 public void someMethod() {
54 System.out.println("someMethod() invoked");
55 }
56
57 public static void main(String[] args) throws Throwable {
58 Test8015436 testObj = new Test8015436();
59 testObj.someMethod();
60 testObj.defaultMethod("invoked directly");
61
62 MethodHandles.Lookup lookup = MethodHandles.lookup();
63 MethodType mt = MethodType.methodType(void.class, String.class);
64 MethodHandle mh = lookup.findVirtual(Test8015436.class, "defaultMethod", mt);
65 mh.invokeExact(testObj, "invoked via a MethodHandle");
66 }
67 }
68
69 /*
70 * A successful execution gives the output:
71 * someMethod() invoked
72 * defaultMethod() invoked directly
73 * defaultMethod() invoked via a MethodHandle
74 */
|
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @bug 8015436
27 * @summary the IK _initial_method_idnum value must be adjusted if overpass methods are added
28 *
29 * @run main compiler.runtime.cr8015436.Test8015436
30 */
31
32 /*
33 * The test checks that a MemberName for the defaultMethod() is cached in
34 * the class MemberNameTable without a crash in the VM fastdebug mode.
35 * The original issue was that the InstanceKlass _initial_method_idnum was
36 * not adjusted properly when the overpass methods are added to the class.
37 * The expected/correct behavior: The test does not crash nor throw any exceptions.
38 * All the invocations of the defaultMethod() must be completed successfully.
39 */
40
41 package compiler.runtime.cr8015436;
42
43 import java.lang.invoke.MethodHandle;
44 import java.lang.invoke.MethodHandles;
45 import java.lang.invoke.MethodType;
46
47 public class Test8015436 implements InterfaceWithDefaultMethod {
48 @Override
49 public void someMethod() {
50 System.out.println("someMethod() invoked");
51 }
52
53 public static void main(String[] args) throws Throwable {
54 Test8015436 testObj = new Test8015436();
55 testObj.someMethod();
56 testObj.defaultMethod("invoked directly");
57
58 MethodHandles.Lookup lookup = MethodHandles.lookup();
59 MethodType mt = MethodType.methodType(void.class, String.class);
60 MethodHandle mh = lookup.findVirtual(Test8015436.class, "defaultMethod", mt);
61 mh.invokeExact(testObj, "invoked via a MethodHandle");
62 }
63 }
64
65 interface InterfaceWithDefaultMethod {
66 public void someMethod();
67
68 default public void defaultMethod(String str){
69 System.out.println("defaultMethod() " + str);
70 }
71 }
72 /*
73 * A successful execution gives the output:
74 * someMethod() invoked
75 * defaultMethod() invoked directly
76 * defaultMethod() invoked via a MethodHandle
77 */
|