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hotspot/test/runtime/valhalla/valuetypes/DeriveValueTypeCreation.java

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   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   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 package runtime.valhalla.valuetypes;
  24 

  25 import java.lang.reflect.Field;
  26 import java.lang.reflect.InvocationTargetException;
  27 import java.lang.reflect.Method;
  28 import static java.lang.reflect.Modifier.*;
  29 import java.net.URL;
  30 import java.util.ArrayList;
  31 import java.util.HashMap;
  32 
  33 import jdk.experimental.bytecode.*;
  34 import jdk.experimental.value.ValueType;
  35 
  36 import jdk.internal.org.objectweb.asm.*;
  37 import static jdk.internal.org.objectweb.asm.Opcodes.*;
  38 
  39 import static jdk.test.lib.Asserts.*;
  40 
  41 /*
  42  * @test DeriveValueTypeCreation
  43  * @summary Derive Value Type creation test
  44  * @library /test/lib
  45  * @compile DeriveValueTypeCreation.java
  46  * @modules java.base/jdk.internal.org.objectweb.asm


  47  * @build runtime.valhalla.valuetypes.ValueCapableClass
  48  * @run main/othervm -Xint -XX:+EnableMVT runtime.valhalla.valuetypes.DeriveValueTypeCreation
  49  * @run main/othervm -Xcomp -XX:+EnableMVT runtime.valhalla.valuetypes.DeriveValueTypeCreation
  50  */
  51 public class DeriveValueTypeCreation {
  52 
  53     public static final String VCC_CLASSNAME = "runtime.valhalla.valuetypes.ValueCapableClass";
  54     public static final String DVT_SUFFIX = "$Value";
  55 
  56     public static final int TEST_DEF_CLASS_ACCESS = ACC_SUPER | ACC_PUBLIC | ACC_FINAL;
  57     public static final int TEST_DEF_FIELD_ACCESS = ACC_PUBLIC | ACC_FINAL;
  58     public static final String OBJECT_CLASS_DESC  = "java/lang/Object";
  59 
  60     public static void main(String[] args) {
  61         DeriveValueTypeCreation test = new DeriveValueTypeCreation();
  62         test.run();
  63     }
  64 
  65     public void run() {
  66         loadAndRunTest();


  79         catch (Throwable t) { fail("Failed to invoke VCC.test()", t); }
  80 
  81         checkValueCapableClass(clazz);
  82     }
  83 
  84     void checkValueCapableClass(Class<?> clazz) {
  85         if (!ValueType.classHasValueType(clazz)) {
  86             fail("!classHasValueType: " + clazz);
  87         }
  88 
  89         ValueType<?> vt = ValueType.forClass(clazz);
  90         if (vt == null) {
  91             fail("ValueType.forClass failed");
  92         }
  93 
  94         System.out.println("ValueType: " + vt);
  95 
  96         if (vt.boxClass() != clazz) {
  97             fail("ValueType.boxClass() failed");
  98         }
  99         if (vt.sourceClass() != clazz) {
 100             fail("ValueType.sourceClass() failed");
 101         }
 102 
 103         // DVT class matches our expectations for the current implementation...
 104         Class<?> vtClass = vt.valueClass();
 105         if (!vtClass.getName().equals(clazz.getName() + DVT_SUFFIX)) {
 106             fail("ValueType.valueClass() failed");
 107         }
 108         if (!vtClass.getSuperclass().getName().equals("java.lang.__Value")) {
 109             fail("ValueType.valueClass() isn't a Value Type class");
 110         }
 111 
 112         // Exercise "Class.getSimpleName()", we've cause problems with it before
 113         String sn = vtClass.getSimpleName();
 114         System.out.println("SimpleName: " + sn);
 115 
 116         if (clazz.getClassLoader() != vtClass.getClassLoader()) {
 117             fail("ClassLoader mismatch");
 118         }
 119         if (clazz.getProtectionDomain() != vtClass.getProtectionDomain()) {
 120             fail("ProtectionDomain mismatch");
 121         }


 162         return createTestVccClassBytes(name, TEST_DEF_CLASS_ACCESS, vccAnnotation, OBJECT_CLASS_DESC, "I", TEST_DEF_FIELD_ACCESS);
 163     }
 164 
 165     byte[] createTestVccClassBytes(String name,
 166                                 int klassAccess,
 167                                 String superKlass,
 168                                 String fieldType,
 169                                 int fieldAccess)  {
 170         return createTestVccClassBytes(name, klassAccess, true, superKlass, fieldType, fieldAccess);
 171     }
 172 
 173     byte[] createTestVccClassBytes(String name,
 174                                 int klassAccess,
 175                                 boolean vccAnnotation,
 176                                 String superKlass,
 177                                 String fieldType,
 178                                 int fieldAccess)  {
 179         ClassWriter cw = new ClassWriter(0);
 180         cw.visit(52, klassAccess, name, null, superKlass, null);
 181         if (vccAnnotation ) {
 182             cw.visitAnnotation("Ljvm/internal/value/ValueCapableClass;", true);
 183         }
 184         if (fieldType != null) {
 185             cw.visitField(fieldAccess, "x", fieldType, null, null);
 186         }
 187         cw.visitEnd();
 188         return cw.toByteArray();
 189     }
 190 
 191     Class<?> createTestVccClass(String name,
 192                              int klassAccess,
 193                              String superKlass,
 194                              String fieldType,
 195                              int fieldAccess) throws ClassNotFoundException {
 196         return new TestClassLoader(name,
 197                                    createTestVccClassBytes(name, klassAccess, superKlass, fieldType, fieldAccess)).loadClass(name);
 198     }
 199 
 200     class TestClassLoader extends ClassLoader {
 201 
 202         HashMap<String, byte[]> namedBytes = new HashMap<>();




   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   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 package runtime.valhalla.valuetypes;
  24 
  25 import jdk.incubator.mvt.ValueType;
  26 import java.lang.reflect.Field;
  27 import java.lang.reflect.InvocationTargetException;
  28 import java.lang.reflect.Method;
  29 import static java.lang.reflect.Modifier.*;
  30 import java.net.URL;
  31 import java.util.ArrayList;
  32 import java.util.HashMap;
  33 
  34 import jdk.experimental.bytecode.*;

  35 
  36 import jdk.internal.org.objectweb.asm.*;
  37 import static jdk.internal.org.objectweb.asm.Opcodes.*;
  38 
  39 import static jdk.test.lib.Asserts.*;
  40 
  41 /*
  42  * @test DeriveValueTypeCreation
  43  * @summary Derive Value Type creation test
  44  * @library /test/lib
  45  * @compile DeriveValueTypeCreation.java
  46  * @modules java.base/jdk.experimental.bytecode
  47  *          java.base/jdk.internal.org.objectweb.asm
  48  *          jdk.incubator.mvt
  49  * @build runtime.valhalla.valuetypes.ValueCapableClass
  50  * @run main/othervm -Xint -XX:+EnableMVT runtime.valhalla.valuetypes.DeriveValueTypeCreation
  51  * @run main/othervm -Xcomp -XX:+EnableMVT runtime.valhalla.valuetypes.DeriveValueTypeCreation
  52  */
  53 public class DeriveValueTypeCreation {
  54 
  55     public static final String VCC_CLASSNAME = "runtime.valhalla.valuetypes.ValueCapableClass";
  56     public static final String DVT_SUFFIX = "$Value";
  57 
  58     public static final int TEST_DEF_CLASS_ACCESS = ACC_SUPER | ACC_PUBLIC | ACC_FINAL;
  59     public static final int TEST_DEF_FIELD_ACCESS = ACC_PUBLIC | ACC_FINAL;
  60     public static final String OBJECT_CLASS_DESC  = "java/lang/Object";
  61 
  62     public static void main(String[] args) {
  63         DeriveValueTypeCreation test = new DeriveValueTypeCreation();
  64         test.run();
  65     }
  66 
  67     public void run() {
  68         loadAndRunTest();


  81         catch (Throwable t) { fail("Failed to invoke VCC.test()", t); }
  82 
  83         checkValueCapableClass(clazz);
  84     }
  85 
  86     void checkValueCapableClass(Class<?> clazz) {
  87         if (!ValueType.classHasValueType(clazz)) {
  88             fail("!classHasValueType: " + clazz);
  89         }
  90 
  91         ValueType<?> vt = ValueType.forClass(clazz);
  92         if (vt == null) {
  93             fail("ValueType.forClass failed");
  94         }
  95 
  96         System.out.println("ValueType: " + vt);
  97 
  98         if (vt.boxClass() != clazz) {
  99             fail("ValueType.boxClass() failed");
 100         }



 101 
 102         // DVT class matches our expectations for the current implementation...
 103         Class<?> vtClass = vt.valueClass();
 104         if (!vtClass.getName().equals(clazz.getName() + DVT_SUFFIX)) {
 105             fail("ValueType.valueClass() failed");
 106         }
 107         if (!vtClass.getSuperclass().getName().equals("java.lang.__Value")) {
 108             fail("ValueType.valueClass() isn't a Value Type class");
 109         }
 110 
 111         // Exercise "Class.getSimpleName()", we've cause problems with it before
 112         String sn = vtClass.getSimpleName();
 113         System.out.println("SimpleName: " + sn);
 114 
 115         if (clazz.getClassLoader() != vtClass.getClassLoader()) {
 116             fail("ClassLoader mismatch");
 117         }
 118         if (clazz.getProtectionDomain() != vtClass.getProtectionDomain()) {
 119             fail("ProtectionDomain mismatch");
 120         }


 161         return createTestVccClassBytes(name, TEST_DEF_CLASS_ACCESS, vccAnnotation, OBJECT_CLASS_DESC, "I", TEST_DEF_FIELD_ACCESS);
 162     }
 163 
 164     byte[] createTestVccClassBytes(String name,
 165                                 int klassAccess,
 166                                 String superKlass,
 167                                 String fieldType,
 168                                 int fieldAccess)  {
 169         return createTestVccClassBytes(name, klassAccess, true, superKlass, fieldType, fieldAccess);
 170     }
 171 
 172     byte[] createTestVccClassBytes(String name,
 173                                 int klassAccess,
 174                                 boolean vccAnnotation,
 175                                 String superKlass,
 176                                 String fieldType,
 177                                 int fieldAccess)  {
 178         ClassWriter cw = new ClassWriter(0);
 179         cw.visit(52, klassAccess, name, null, superKlass, null);
 180         if (vccAnnotation ) {
 181             cw.visitAnnotation("Ljdk/incubator/mvt/ValueCapableClass;", true);
 182         }
 183         if (fieldType != null) {
 184             cw.visitField(fieldAccess, "x", fieldType, null, null);
 185         }
 186         cw.visitEnd();
 187         return cw.toByteArray();
 188     }
 189 
 190     Class<?> createTestVccClass(String name,
 191                              int klassAccess,
 192                              String superKlass,
 193                              String fieldType,
 194                              int fieldAccess) throws ClassNotFoundException {
 195         return new TestClassLoader(name,
 196                                    createTestVccClassBytes(name, klassAccess, superKlass, fieldType, fieldAccess)).loadClass(name);
 197     }
 198 
 199     class TestClassLoader extends ClassLoader {
 200 
 201         HashMap<String, byte[]> namedBytes = new HashMap<>();


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