Source Code Cross Referenced for InstrumentationSpec.java in  » Net » Terracotta » com » tc » object » bytecode » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » Terracotta » com.tc.object.bytecode 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * All content copyright (c) 2003-2006 Terracotta, Inc., except as may otherwise be noted in a separate copyright
003:         * notice. All rights reserved.
004:         */
005:        package com.tc.object.bytecode;
006:
007:        import com.tc.asm.Type;
008:        import com.tc.aspectwerkz.reflect.ClassInfo;
009:        import com.tc.aspectwerkz.reflect.ConstructorInfo;
010:        import com.tc.aspectwerkz.reflect.FieldInfo;
011:        import com.tc.aspectwerkz.reflect.MethodInfo;
012:        import com.tc.aspectwerkz.reflect.impl.asm.AsmClassInfo;
013:        import com.tc.aspectwerkz.reflect.impl.java.JavaClassInfo;
014:        import com.tc.backport175.bytecode.AnnotationElement.Annotation;
015:        import com.tc.exception.TCLogicalSubclassNotPortableException;
016:        import com.tc.object.LiteralValues;
017:        import com.tc.object.Portability;
018:        import com.tc.object.config.TransparencyClassSpec;
019:        import com.tc.object.config.TransparencyClassSpecUtil;
020:        import com.tc.util.Assert;
021:
022:        import java.lang.reflect.Field;
023:        import java.lang.reflect.Method;
024:        import java.lang.reflect.Modifier;
025:        import java.util.Collection;
026:        import java.util.HashMap;
027:        import java.util.HashSet;
028:        import java.util.Map;
029:        import java.util.Set;
030:
031:        class InstrumentationSpec {
032:            public static final byte IS_NOT_NEEDED = 0x04;
033:            public static final byte IS_NEEDED = 0x05;
034:
035:            private static final LiteralValues literalValues = new LiteralValues();
036:
037:            private byte instrumentationAction = TransparencyClassSpec.NOT_ADAPTABLE;
038:
039:            private byte managedMethods = IS_NOT_NEEDED;
040:            private byte valuesGetterMethod = IS_NOT_NEEDED;
041:            private byte valuesSetterMethod = IS_NOT_NEEDED;
042:            private byte managedValuesGetterMethod = IS_NOT_NEEDED;
043:            private byte managedValuesSetterMethod = IS_NOT_NEEDED;
044:            private byte managedField = IS_NOT_NEEDED;
045:            private byte delegateLogicalField = IS_NOT_NEEDED;
046:            private byte writeObjectSerializedMethod = IS_NOT_NEEDED;
047:            private byte readObjectSerializedMethod = IS_NOT_NEEDED;
048:
049:            private String classNameSlashes;
050:            private String super NameSlashes;
051:            private String classNameDots;
052:            private String super NameDots;
053:            private boolean isInterface;
054:            private ParentClassInfo parentClassInfo;
055:            private boolean classHierarchyInitialized = false;
056:            private int classAccess;
057:            private String classSignature;
058:            private String[] classInterfaces;
059:            private int classVersion;
060:            private boolean hasVisitedField;
061:            private boolean isSubclassOfLogicalClass;
062:            private TransparencyClassSpec super ClassSpec;
063:
064:            private final ClassInfo classInfo;
065:            private final Map fieldInfoMap;
066:            private final TransparencyClassSpec spec;
067:            private final ManagerHelper mgrHelper;
068:
069:            private final Set classHierarchy;
070:            private final Map shouldOverrideMethods;
071:            private final Set logicalExtendingMethodSpec;
072:            private final Set logicalExtendingFieldSpec;
073:            private final ClassLoader caller;
074:
075:            InstrumentationSpec(ClassInfo classInfo,
076:                    TransparencyClassSpec spec, ManagerHelper mgrHelper,
077:                    ClassLoader caller) {
078:                this .classInfo = classInfo;
079:                this .spec = spec;
080:                this .mgrHelper = mgrHelper;
081:                this .caller = caller;
082:                this .classHierarchy = new HashSet();
083:                this .shouldOverrideMethods = new HashMap();
084:                this .logicalExtendingMethodSpec = new HashSet();
085:                this .logicalExtendingFieldSpec = new HashSet();
086:                this .fieldInfoMap = buildFieldInfoMap();
087:            }
088:
089:            ClassLoader getCaller() {
090:                return caller;
091:            }
092:
093:            private Map buildFieldInfoMap() {
094:                Map rv = new HashMap();
095:
096:                FieldInfo[] fields = this .getClassInfo().getFields();
097:                for (int i = 0; i < fields.length; i++) {
098:                    FieldInfo fieldInfo = fields[i];
099:                    Object prev = rv.put(fieldInfo.getName(), fieldInfo);
100:                    if (prev != null) {
101:                        throw new AssertionError("replaced mapping for "
102:                                + fieldInfo.getName());
103:                    }
104:                }
105:
106:                return rv;
107:            }
108:
109:            public ClassInfo getClassInfo() {
110:                return classInfo;
111:            }
112:
113:            // XXX: Most of this info is already in ClassInfo -- but not class verison ;-)
114:            void initialize(int version, int access, String name,
115:                    String signature, String super Name, String[] interfaces,
116:                    Portability portability) {
117:                this .classNameSlashes = name;
118:                this .super NameSlashes = super Name;
119:                this .classNameDots = name.replace('/', '.');
120:                this .super NameDots = super Name.replace('/', '.');
121:                this .classHierarchy.add(this .classNameSlashes);
122:                this .classHierarchy.add(this .super NameSlashes);
123:                this .classAccess = access;
124:                this .classSignature = signature;
125:                this .classInterfaces = interfaces;
126:                this .classVersion = version;
127:                decideOnInstrumentationAction(portability);
128:                handleSubclassOfLogicalClass(access, classNameDots,
129:                        super NameDots);
130:            }
131:
132:            private boolean isArray(String className) {
133:                return literalValues.valueForClassName(className) == LiteralValues.ARRAY;
134:            }
135:
136:            private void handleSubclassOfLogicalClass(int access,
137:                    String className, String super Name) {
138:                if (isLogical()) {
139:                    return;
140:                }
141:                if (isArray(className)) {
142:                    return;
143:                }
144:                if (TransparencyClassSpecUtil.ignoreChecks(className)) {
145:                    return;
146:                }
147:                if (TransparencyClassSpecUtil.ignoreChecks(super Name)) {
148:                    return;
149:                }
150:
151:                super ClassSpec = spec.getClassSpec(super Name);
152:                if (super ClassSpec != null && super ClassSpec.isLogical()) {
153:                    isSubclassOfLogicalClass = true;
154:                }
155:            }
156:
157:            public int getClassVersion() {
158:                return classVersion;
159:            }
160:
161:            public int getClassAccess() {
162:                return classAccess;
163:            }
164:
165:            private void initClassHierarchy() {
166:                String super ClassName = super NameSlashes.replace('/', '.');
167:                try {
168:                    // As long as we are instrumenting anything other than Object, we are fine.
169:                    // Class superClazz = Class.forName(superClassName, false, this.caller).getSuperclass();
170:                    Class super Clazz = Class.forName(super ClassName, false,
171:                            this .classInfo.getClassLoader()).getSuperclass();
172:                    while (super Clazz != null) {
173:                        String super Name = super Clazz.getName();
174:                        classHierarchy.add(super Name.replace('.', '/'));
175:                        super Clazz = super Clazz.getSuperclass();
176:                    }
177:                } catch (ClassNotFoundException e) {
178:                    e.printStackTrace();
179:                } finally {
180:                    classHierarchyInitialized = true;
181:                }
182:            }
183:
184:            String getClassNameSlashes() {
185:                return this .classNameSlashes;
186:            }
187:
188:            String getClassNameDots() {
189:                return this .classNameDots;
190:            }
191:
192:            String getSuperClassNameSlashes() {
193:                return this .super NameSlashes;
194:            }
195:
196:            String getSuperClassNameDots() {
197:                return this .super NameDots;
198:            }
199:
200:            String[] getClassInterfaces() {
201:                return classInterfaces;
202:            }
203:
204:            String getClassSignature() {
205:                return classSignature;
206:            }
207:
208:            void decideOnInstrumentationAction(Portability portability) {
209:                Assert.assertNotNull(classNameSlashes);
210:                Assert.assertNotNull(super NameSlashes);
211:
212:                this .isInterface = Modifier.isInterface(classAccess);
213:
214:                if (isInterface) {
215:                    this .instrumentationAction = TransparencyClassSpec.NOT_ADAPTABLE;
216:                } else if (spec.getInstrumentationAction() == TransparencyClassSpec.PORTABLE) {
217:                    this .instrumentationAction = TransparencyClassSpec.PORTABLE;
218:                } else if (spec.getInstrumentationAction() == TransparencyClassSpec.ADAPTABLE) {
219:                    this .instrumentationAction = TransparencyClassSpec.ADAPTABLE;
220:                } else if (spec.isLogical() || spec.ignoreChecks()) {
221:                    // Logically managed classes need not have all super classes instrumented.
222:                    // currently THashMap and THashSet are not in boot jar and are instrumented during runtime.
223:                    this .instrumentationAction = TransparencyClassSpec.PORTABLE;
224:                } else if (super ClassChecks(portability)) {
225:                    this .instrumentationAction = TransparencyClassSpec.ADAPTABLE;
226:                } else {
227:                    this .instrumentationAction = TransparencyClassSpec.PORTABLE;
228:                }
229:                decideOnInstrumentationsToDo(portability);
230:            }
231:
232:            private void decideOnInstrumentationsToDo(Portability portability) {
233:                if (this .instrumentationAction == TransparencyClassSpec.PORTABLE) {
234:                    if (!isLogical()) {
235:                        valuesGetterMethod = IS_NEEDED;
236:                        valuesSetterMethod = IS_NEEDED;
237:                        managedValuesGetterMethod = IS_NEEDED;
238:                        managedValuesSetterMethod = IS_NEEDED;
239:                    }
240:                    managedField = isNeedManagedField(portability);
241:                    managedMethods = managedField;
242:                }
243:            }
244:
245:            /**
246:             * If the superclass does not need to be instrumented, we need to generate the managed field and method for the class.
247:             * If there does not exist a portable specs for the superclass, we need to generate the managed field and method for
248:             * the class. If the class is logically instrumented, we need to generate the managed field and method. If it is a
249:             * subclass of a logically instrumented class, we do not need to generate the field.
250:             */
251:            private byte isNeedManagedField(Portability portability) {
252:                if (isSubclassOfLogicalClass) {
253:                    return IS_NOT_NEEDED;
254:                }
255:                ClassInfo super ClassInfo = classInfo.getSuperclass();
256:                if (portability.isInstrumentationNotNeeded(super ClassInfo
257:                        .getName())) {
258:                    return IS_NEEDED;
259:                }
260:                if (!spec.hasPhysicallyPortableSpecs(super ClassInfo)) {
261:                    return IS_NEEDED;
262:                }
263:                if (spec.isLogical()) {
264:                    return IS_NEEDED;
265:                }
266:                return IS_NOT_NEEDED;
267:            }
268:
269:            private boolean super ClassChecks(Portability portability) {
270:                String super ClassName = super NameSlashes.replace('/', '.');
271:                if (portability.isInstrumentationNotNeeded(super ClassName)) {
272:                    return false;
273:                }
274:
275:                final Class super Clazz;
276:                try {
277:                    super Clazz = Class.forName(super ClassName, false,
278:                            this .classInfo.getClassLoader());
279:                } catch (ClassNotFoundException e) {
280:                    throw new RuntimeException(e);
281:                }
282:
283:                if (!portability.isPortableClass(super Clazz)) {
284:                    return true;
285:                }
286:                return false;
287:            }
288:
289:            boolean isInClassHierarchy(String classname) {
290:                boolean inClassHierarchy = classHierarchy.contains(classname);
291:                if (inClassHierarchy || classHierarchyInitialized)
292:                    return inClassHierarchy;
293:                initClassHierarchy();
294:                return classHierarchy.contains(classname);
295:            }
296:
297:            boolean isClassNotAdaptable() {
298:                return this .instrumentationAction == TransparencyClassSpec.NOT_ADAPTABLE;
299:            }
300:
301:            boolean isClassAdaptable() {
302:                return this .instrumentationAction == TransparencyClassSpec.ADAPTABLE;
303:            }
304:
305:            boolean isClassPortable() {
306:                return this .instrumentationAction == TransparencyClassSpec.PORTABLE;
307:            }
308:
309:            boolean isSubclassofLogicalClass() {
310:                return this .isSubclassOfLogicalClass;
311:            }
312:
313:            void moveToLogicalIfNecessary() {
314:                if (isSubclassOfLogicalClass && !hasVisitedField) {
315:                    spec.moveToLogical(super ClassSpec);
316:                }
317:            }
318:
319:            boolean hasDelegatedToLogicalClass() {
320:                return needDelegateField();
321:            }
322:
323:            boolean needDelegateField() {
324:                return this .delegateLogicalField == IS_NEEDED;
325:            }
326:
327:            boolean isWriteObjectMethodNeeded() {
328:                return this .writeObjectSerializedMethod == IS_NEEDED;
329:            }
330:
331:            boolean isReadObjectMethodNeeded() {
332:                return this .readObjectSerializedMethod == IS_NEEDED;
333:            }
334:
335:            void handleSubclassOfLogicalClassWithFieldsIfNecessary(int access) {
336:                if (ByteCodeUtil.isSynthetic(access)
337:                        || Modifier.isStatic(access)) {
338:                    return;
339:                } else if (isSubclassOfLogicalClass && !hasVisitedField) {
340:                    hasVisitedField = true;
341:                    try {
342:                        Class super Clazz = Class.forName(super NameDots, false,
343:                                this .classInfo.getClassLoader());
344:
345:                        Method[] methods = super Clazz.getMethods();
346:                        for (int i = 0; i < methods.length; i++) {
347:                            Method m = methods[i];
348:                            String methodName = m.getName();
349:                            int modifier = m.getModifiers();
350:                            if (!shouldVisitMethod(modifier, methodName)
351:                                    || Modifier.isFinal(modifier)) {
352:                                continue;
353:                            }
354:
355:                            String methodDesc = Type.getMethodDescriptor(m);
356:                            shouldOverrideMethods.put(methodName + methodDesc,
357:                                    m);
358:                        }
359:
360:                        methods = super Clazz.getDeclaredMethods();
361:                        for (int i = 0; i < methods.length; i++) {
362:                            Method m = methods[i];
363:                            String methodName = m.getName();
364:                            int modifier = m.getModifiers();
365:                            if (shouldVisitMethod(modifier, methodName)
366:                                    && !Modifier.isFinal(modifier)
367:                                    && Modifier.isProtected(modifier)) {
368:                                String methodDesc = Type.getMethodDescriptor(m);
369:                                logicalExtendingMethodSpec.add(methodName
370:                                        + methodDesc);
371:                            }
372:                        }
373:
374:                        Field[] fields = super Clazz.getDeclaredFields();
375:                        for (int i = 0; i < fields.length; i++) {
376:                            Field f = fields[i];
377:                            String fieldName = f.getName();
378:                            int modifier = f.getModifiers();
379:                            if (!shouldVisitField(fieldName)
380:                                    || Modifier.isFinal(modifier)
381:                                    || Modifier.isPrivate(modifier)) {
382:                                continue;
383:                            }
384:                            String fieldDesc = Type.getDescriptor(f.getType());
385:                            logicalExtendingFieldSpec
386:                                    .add(fieldName + fieldDesc);
387:                        }
388:                    } catch (ClassNotFoundException e) {
389:                        e.printStackTrace();
390:                    }
391:                    delegateLogicalField = IS_NEEDED;
392:                    writeObjectSerializedMethod = IS_NEEDED;
393:                    readObjectSerializedMethod = IS_NEEDED;
394:                }
395:            }
396:
397:            void recordExistingFields(String name, String desc, String signature) {
398:                if (ByteCodeUtil.isParent(name)) {
399:                    Assert.assertNull(parentClassInfo);
400:                    this .parentClassInfo = new ParentClassInfo(name, desc);
401:                }
402:            }
403:
404:            void recordExistingMethods(String name, String desc,
405:                    String signature) {
406:                if (LogicalClassSerializationAdapter.READ_OBJECT_SIGNATURE
407:                        .equals(name + desc)) {
408:                    readObjectSerializedMethod = IS_NOT_NEEDED;
409:                } else if (LogicalClassSerializationAdapter.WRITE_OBJECT_SIGNATURE
410:                        .equals(name + desc)) {
411:                    writeObjectSerializedMethod = IS_NOT_NEEDED;
412:                }
413:                shouldOverrideMethods.remove(name + desc);
414:            }
415:
416:            boolean shouldVisitField(String name) {
417:                return !(name.startsWith(ByteCodeUtil.TC_FIELD_PREFIX));
418:            }
419:
420:            boolean shouldVisitMethod(int methodAccess, String name) {
421:                if (name.startsWith(ByteCodeUtil.TC_METHOD_PREFIX)) {
422:                    return false;
423:                }
424:                if (Modifier.isAbstract(methodAccess)
425:                        || Modifier.isNative(methodAccess)) {
426:                    return false;
427:                }
428:                return true;
429:            }
430:
431:            boolean isManagedMethodsNeeded() {
432:                return (managedMethods == IS_NEEDED);
433:            }
434:
435:            boolean isValuesGetterMethodNeeded() {
436:                return (valuesGetterMethod == IS_NEEDED);
437:            }
438:
439:            boolean isValuesSetterMethodNeeded() {
440:                return (valuesSetterMethod == IS_NEEDED);
441:            }
442:
443:            boolean isManagedValuesGetterMethodNeeded() {
444:                return (managedValuesGetterMethod == IS_NEEDED);
445:            }
446:
447:            boolean isManagedValuesSetterMethodNeeded() {
448:                return (managedValuesSetterMethod == IS_NEEDED);
449:            }
450:
451:            boolean isManagedFieldNeeded() {
452:                return (managedField == IS_NEEDED);
453:            }
454:
455:            TransparencyClassSpec getTransparencyClassSpec() {
456:                return spec;
457:            }
458:
459:            TransparencyClassSpec getSuperclassTransparencyClassSpec() {
460:                return spec.getClassSpec(super NameDots);
461:            }
462:
463:            boolean isLogical() {
464:                return spec.isLogical();
465:            }
466:
467:            boolean needInstrumentFieldInsn() {
468:                return !spec.isLogical()
469:                        && !(isSubclassOfLogicalClass && !hasVisitedField);
470:            }
471:
472:            void shouldProceedInstrumentation(int access, String name,
473:                    String desc) {
474:                if (isSubclassOfLogicalClass && shouldVisitMethod(access, name)
475:                        && logicalExtendingMethodSpec.contains(name + desc)) {
476:                    // Subclass of Logical class cannot override protected method. So, ignore all instrumentation.
477:                    throw new TCLogicalSubclassNotPortableException(
478:                            classNameDots, super NameDots);
479:                }
480:            }
481:
482:            void shouldProceedInstrumentation(String fieldName, String fieldDesc) {
483:                if (isSubclassOfLogicalClass
484:                        && shouldVisitField(fieldName)
485:                        && logicalExtendingFieldSpec.contains(fieldName
486:                                + fieldDesc)) {
487:                    throw new TCLogicalSubclassNotPortableException(
488:                            classNameDots, super NameDots);
489:                }
490:            }
491:
492:            boolean isPhysical() {
493:                return spec.isPhysical();
494:            }
495:
496:            Collection getShouldOverrideMethods() {
497:                return shouldOverrideMethods.values();
498:            }
499:
500:            ManagerHelper getManagerHelper() {
501:                return mgrHelper;
502:            }
503:
504:            boolean isInner() {
505:                return this .parentClassInfo != null;
506:            }
507:
508:            String getParentClassType() {
509:                Assert.assertTrue(isInner());
510:                return parentClassInfo.getType();
511:            }
512:
513:            String getParentClassFieldName() {
514:                Assert.assertTrue(isInner());
515:                return parentClassInfo.getFieldName();
516:            }
517:
518:            private static class ParentClassInfo {
519:                private final String type;
520:                private final String fieldName;
521:
522:                ParentClassInfo(String fieldName, String type) {
523:                    this .fieldName = fieldName;
524:                    this .type = type;
525:                }
526:
527:                String getFieldName() {
528:                    return fieldName;
529:                }
530:
531:                String getType() {
532:                    return type;
533:                }
534:
535:            }
536:
537:            public MethodInfo getMethodInfo(int access, String name, String desc) {
538:                if (!"<init>".equals(name)) {
539:                    MethodInfo[] methods = classInfo.getMethods();
540:                    for (int i = 0; i < methods.length; i++) {
541:                        MethodInfo methodInfo = methods[i];
542:                        if (methodInfo.getName().equals(name)
543:                                && methodInfo.getSignature().equals(desc)) {
544:                            return methodInfo;
545:                        }
546:                    }
547:                } else {
548:                    ConstructorInfo[] constructors = classInfo
549:                            .getConstructors();
550:                    for (int i = 0; i < constructors.length; i++) {
551:                        ConstructorInfo info = constructors[i];
552:                        if (info.getName().equals(name)
553:                                && info.getSignature().equals(desc)) {
554:                            return new ConstructorInfoWrapper(info);
555:                        }
556:                    }
557:                    // reflecting old DSO hack (see com.tc.object.bytecode.aspectwerkz.AsmMethodInfo)
558:                    name = "__INIT__";
559:                }
560:
561:                return new StubMethodInfo(name, desc, access, classInfo);
562:            }
563:
564:            public FieldInfo getFieldInfo(String fieldName) {
565:                return (FieldInfo) fieldInfoMap.get(fieldName);
566:            }
567:
568:            private static final class StubMethodInfo implements  MethodInfo {
569:                private final String name;
570:                private final String desc;
571:                private final int access;
572:                private final ClassInfo declaringClassInfo;
573:
574:                private StubMethodInfo(String name, String desc, int access,
575:                        ClassInfo classInfo) {
576:                    this .name = name;
577:                    this .desc = desc;
578:                    this .access = access;
579:                    this .declaringClassInfo = classInfo;
580:                }
581:
582:                public ClassInfo[] getExceptionTypes() {
583:                    return new ClassInfo[0];
584:                }
585:
586:                public String[] getParameterNames() {
587:                    return new String[0];
588:                }
589:
590:                public ClassInfo[] getParameterTypes() {
591:                    Type[] types = Type.getArgumentTypes(desc);
592:                    ClassInfo[] parameterTypes = new ClassInfo[types.length];
593:                    for (int i = 0; i < types.length; i++) {
594:                        parameterTypes[i] = AsmClassInfo.getClassInfo(types[i]
595:                                .getClassName(), declaringClassInfo
596:                                .getClassLoader());
597:                    }
598:                    return parameterTypes;
599:                }
600:
601:                public ClassInfo getReturnType() {
602:                    Type type = Type.getReturnType(desc);
603:                    return AsmClassInfo.getClassInfo(type.getClassName(),
604:                            declaringClassInfo.getClassLoader());
605:                }
606:
607:                public ClassInfo getDeclaringType() {
608:                    return declaringClassInfo;
609:                }
610:
611:                public Annotation[] getAnnotations() {
612:                    return new Annotation[0];
613:                }
614:
615:                public String getGenericsSignature() {
616:                    return null;
617:                }
618:
619:                public int getModifiers() {
620:                    return access;
621:                }
622:
623:                public String getName() {
624:                    return name;
625:                }
626:
627:                public String getSignature() {
628:                    return desc;
629:                }
630:            }
631:
632:            public class StubConstructorInfo implements  ConstructorInfo {
633:                private final String name;
634:                private final String desc;
635:                private final int access;
636:                private final ClassInfo declaringClassInfo;
637:
638:                private StubConstructorInfo(String name, String desc,
639:                        int access, ClassInfo classInfo) {
640:                    this .name = name;
641:                    this .desc = desc;
642:                    this .access = access;
643:                    this .declaringClassInfo = classInfo;
644:                }
645:
646:                public ClassInfo[] getExceptionTypes() {
647:                    return new ClassInfo[0];
648:                }
649:
650:                public ClassInfo[] getParameterTypes() {
651:                    Type[] types = Type.getArgumentTypes(desc);
652:                    ClassInfo[] parameterTypes = new ClassInfo[types.length];
653:                    for (int i = 0; i < types.length; i++) {
654:                        parameterTypes[i] = AsmClassInfo.getClassInfo(types[i]
655:                                .getClassName(), declaringClassInfo
656:                                .getClassLoader());
657:                    }
658:                    return parameterTypes;
659:                }
660:
661:                public ClassInfo getDeclaringType() {
662:                    return declaringClassInfo;
663:                }
664:
665:                public Annotation[] getAnnotations() {
666:                    return new Annotation[0];
667:                }
668:
669:                public String getGenericsSignature() {
670:                    return null;
671:                }
672:
673:                public int getModifiers() {
674:                    return access;
675:                }
676:
677:                public String getName() {
678:                    return name;
679:                }
680:
681:                public String getSignature() {
682:                    return desc;
683:                }
684:
685:            }
686:
687:            public class ConstructorInfoWrapper implements  MethodInfo {
688:
689:                private final ConstructorInfo constructorInfo;
690:
691:                public ConstructorInfoWrapper(ConstructorInfo constructorInfo) {
692:                    this .constructorInfo = constructorInfo;
693:                }
694:
695:                public String getName() {
696:                    // return constructorInfo.getName();
697:                    // reflecting old DSO hack (see com.tc.object.bytecode.aspectwerkz.AsmMethodInfo)
698:                    return "__INIT__";
699:                }
700:
701:                public int getModifiers() {
702:                    return constructorInfo.getModifiers();
703:                }
704:
705:                public ClassInfo[] getParameterTypes() {
706:                    return constructorInfo.getParameterTypes();
707:                }
708:
709:                public String getSignature() {
710:                    return constructorInfo.getSignature();
711:                }
712:
713:                public String getGenericsSignature() {
714:                    return constructorInfo.getGenericsSignature();
715:                }
716:
717:                public ClassInfo[] getExceptionTypes() {
718:                    return constructorInfo.getExceptionTypes();
719:                }
720:
721:                public Annotation[] getAnnotations() {
722:                    return constructorInfo.getAnnotations();
723:                }
724:
725:                public ClassInfo getDeclaringType() {
726:                    return constructorInfo.getDeclaringType();
727:                }
728:
729:                // specific to MethodInfo
730:
731:                public String[] getParameterNames() {
732:                    return new String[0];
733:                }
734:
735:                public ClassInfo getReturnType() {
736:                    return JavaClassInfo.getClassInfo(void.class);
737:                }
738:
739:            }
740:
741:        }
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