1 /*
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  3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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  6  * under the terms of the GNU General Public License version 2 only, as
  7  * published by the Free Software Foundation.
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  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
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 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
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 22  */
 23 
 24 /*
 25  * @test
 26  * @summary Test JVMTI GetClassModifiers with value classes
 27  * @enablePreview
 28  * @modules java.base/jdk.internal.misc
 29  * @run junit/othervm/native --enable-native-access=ALL-UNNAMED ${test.main.class}
 30  */
 31 
 32 import java.lang.classfile.ClassFile;
 33 import java.util.stream.Stream;
 34 
 35 import org.junit.jupiter.api.Test;
 36 import org.junit.jupiter.params.ParameterizedTest;
 37 import org.junit.jupiter.params.provider.MethodSource;
 38 import static org.junit.jupiter.api.Assertions.*;
 39 
 40 class GetValueClassModifiersTest {
 41 
 42     // member classes to test
 43 
 44     public abstract value class A_V1 { }
 45     abstract value class A_V2 { }
 46     public value class V1 { }
 47     value class V2 { }
 48     public value record R_V1() { }
 49     value record R_V2() { }
 50 
 51     static Stream<Class<?>> testClasses() {
 52         // local classes
 53         value class L_V { }
 54         abstract value class L_A_V { }
 55 
 56         return Stream.of(
 57                 Integer.class,
 58                 Integer[].class,
 59 
 60                 A_V1.class,
 61                 A_V1[].class,
 62                 A_V2.class,
 63                 A_V2[].class,
 64                 V1.class,
 65                 V1[].class,
 66                 V2.class,
 67                 V2.class,
 68                 R_V1.class,
 69                 R_V1[].class,
 70                 R_V2.class,
 71                 R_V2[].class,
 72 
 73                 // local classes
 74                 L_V.class,
 75                 L_V[].class,
 76                 L_A_V.class,
 77                 L_A_V[].class
 78         );
 79     }
 80 
 81     static Stream<Class<?>> valueClasses() {
 82         return testClasses().filter(Class::isValue);
 83     }
 84 
 85     static Stream<Class<?>> arrayClasses() {
 86         return testClasses().filter(Class::isArray);
 87     }
 88 
 89     @ParameterizedTest
 90     @MethodSource("valueClasses")
 91     void testValueClass(Class<?> clazz) {
 92         assertTrue(clazz.isValue());
 93         int mods = jvmtiGetClassModifiers(clazz);
 94         assertEquals(0, (mods & ClassFile.ACC_IDENTITY), "ACC_IDENTITY set");
 95         assertEquals(clazz.getModifiers(), jvmtiGetClassModifiers(clazz));
 96     }
 97 
 98     @ParameterizedTest
 99     @MethodSource("arrayClasses")
100     void testArrayClass(Class<?> clazz) {
101         assertTrue(clazz.isArray());
102         int mods = jvmtiGetClassModifiers(clazz);
103         assertEquals(ClassFile.ACC_IDENTITY, (mods & ClassFile.ACC_IDENTITY), "ACC_IDENTITY not set");
104         assertEquals(clazz.getModifiers(), jvmtiGetClassModifiers(clazz));
105     }
106 
107     private int jvmtiGetClassModifiers(Class<?> clazz) {
108         return GetClassModifiers.getClassModifiers(clazz);
109     }
110 }