1 /*
   2  * Copyright (c) 1996, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.lang.reflect;
  27 
  28 import jdk.internal.HotSpotIntrinsicCandidate;
  29 import jdk.internal.access.SharedSecrets;
  30 import jdk.internal.reflect.CallerSensitive;
  31 import jdk.internal.reflect.MethodAccessor;
  32 import jdk.internal.reflect.Reflection;
  33 import jdk.internal.vm.annotation.ForceInline;
  34 import sun.reflect.annotation.ExceptionProxy;
  35 import sun.reflect.annotation.TypeNotPresentExceptionProxy;
  36 import sun.reflect.generics.repository.MethodRepository;
  37 import sun.reflect.generics.factory.CoreReflectionFactory;
  38 import sun.reflect.generics.factory.GenericsFactory;
  39 import sun.reflect.generics.scope.MethodScope;
  40 import sun.reflect.annotation.AnnotationType;
  41 import sun.reflect.annotation.AnnotationParser;
  42 import java.lang.annotation.Annotation;
  43 import java.lang.annotation.AnnotationFormatError;
  44 import java.nio.ByteBuffer;
  45 import java.util.StringJoiner;
  46 
  47 /**
  48  * A {@code Method} provides information about, and access to, a single method
  49  * on a class or interface.  The reflected method may be a class method
  50  * or an instance method (including an abstract method).
  51  *
  52  * <p>A {@code Method} permits widening conversions to occur when matching the
  53  * actual parameters to invoke with the underlying method's formal
  54  * parameters, but it throws an {@code IllegalArgumentException} if a
  55  * narrowing conversion would occur.
  56  *
  57  * @see Member
  58  * @see java.lang.Class
  59  * @see java.lang.Class#getMethods()
  60  * @see java.lang.Class#getMethod(String, Class[])
  61  * @see java.lang.Class#getDeclaredMethods()
  62  * @see java.lang.Class#getDeclaredMethod(String, Class[])
  63  *
  64  * @author Kenneth Russell
  65  * @author Nakul Saraiya
  66  * @since 1.1
  67  */
  68 public final class Method extends Executable {
  69     private Class<?>            clazz;
  70     private int                 slot;
  71     // This is guaranteed to be interned by the VM in the 1.4
  72     // reflection implementation
  73     private String              name;
  74     private Class<?>            returnType;
  75     private Class<?>[]          parameterTypes;
  76     private Class<?>[]          exceptionTypes;
  77     private int                 modifiers;
  78     // Generics and annotations support
  79     private transient String              signature;
  80     // generic info repository; lazily initialized
  81     private transient MethodRepository genericInfo;
  82     private byte[]              annotations;
  83     private byte[]              parameterAnnotations;
  84     private byte[]              annotationDefault;
  85     private volatile MethodAccessor methodAccessor;
  86     // For sharing of MethodAccessors. This branching structure is
  87     // currently only two levels deep (i.e., one root Method and
  88     // potentially many Method objects pointing to it.)
  89     //
  90     // If this branching structure would ever contain cycles, deadlocks can
  91     // occur in annotation code.
  92     private Method              root;
  93 
  94     // Generics infrastructure
  95     private String getGenericSignature() {return signature;}
  96 
  97     // Accessor for factory
  98     private GenericsFactory getFactory() {
  99         // create scope and factory
 100         return CoreReflectionFactory.make(this, MethodScope.make(this));
 101     }
 102 
 103     // Accessor for generic info repository
 104     @Override
 105     MethodRepository getGenericInfo() {
 106         // lazily initialize repository if necessary
 107         if (genericInfo == null) {
 108             // create and cache generic info repository
 109             genericInfo = MethodRepository.make(getGenericSignature(),
 110                                                 getFactory());
 111         }
 112         return genericInfo; //return cached repository
 113     }
 114 
 115     /**
 116      * Package-private constructor
 117      */
 118     Method(Class<?> declaringClass,
 119            String name,
 120            Class<?>[] parameterTypes,
 121            Class<?> returnType,
 122            Class<?>[] checkedExceptions,
 123            int modifiers,
 124            int slot,
 125            String signature,
 126            byte[] annotations,
 127            byte[] parameterAnnotations,
 128            byte[] annotationDefault) {
 129         this.clazz = declaringClass;
 130         this.name = name;
 131         this.parameterTypes = parameterTypes;
 132         this.returnType = returnType;
 133         this.exceptionTypes = checkedExceptions;
 134         this.modifiers = modifiers;
 135         this.slot = slot;
 136         this.signature = signature;
 137         this.annotations = annotations;
 138         this.parameterAnnotations = parameterAnnotations;
 139         this.annotationDefault = annotationDefault;
 140     }
 141 
 142     /**
 143      * Package-private routine (exposed to java.lang.Class via
 144      * ReflectAccess) which returns a copy of this Method. The copy's
 145      * "root" field points to this Method.
 146      */
 147     Method copy() {
 148         // This routine enables sharing of MethodAccessor objects
 149         // among Method objects which refer to the same underlying
 150         // method in the VM. (All of this contortion is only necessary
 151         // because of the "accessibility" bit in AccessibleObject,
 152         // which implicitly requires that new java.lang.reflect
 153         // objects be fabricated for each reflective call on Class
 154         // objects.)
 155         if (this.root != null)
 156             throw new IllegalArgumentException("Can not copy a non-root Method");
 157 
 158         Method res = new Method(clazz, name, parameterTypes, returnType,
 159                                 exceptionTypes, modifiers, slot, signature,
 160                                 annotations, parameterAnnotations, annotationDefault);
 161         res.root = this;
 162         // Might as well eagerly propagate this if already present
 163         res.methodAccessor = methodAccessor;
 164         return res;
 165     }
 166 
 167     /**
 168      * Make a copy of a leaf method.
 169      */
 170     Method leafCopy() {
 171         if (this.root == null)
 172             throw new IllegalArgumentException("Can only leafCopy a non-root Method");
 173 
 174         Method res = new Method(clazz, name, parameterTypes, returnType,
 175                 exceptionTypes, modifiers, slot, signature,
 176                 annotations, parameterAnnotations, annotationDefault);
 177         res.root = root;
 178         res.methodAccessor = methodAccessor;
 179         return res;
 180     }
 181 
 182     /**
 183      * @throws InaccessibleObjectException {@inheritDoc}
 184      * @throws SecurityException {@inheritDoc}
 185      */
 186     @Override
 187     @CallerSensitive
 188     public void setAccessible(boolean flag) {
 189         AccessibleObject.checkPermission();
 190         if (flag) checkCanSetAccessible(Reflection.getCallerClass());
 191         setAccessible0(flag);
 192     }
 193 
 194     @Override
 195     void checkCanSetAccessible(Class<?> caller) {
 196         checkCanSetAccessible(caller, clazz);
 197     }
 198 
 199     @Override
 200     Method getRoot() {
 201         return root;
 202     }
 203 
 204     @Override
 205     boolean hasGenericInformation() {
 206         return (getGenericSignature() != null);
 207     }
 208 
 209     @Override
 210     byte[] getAnnotationBytes() {
 211         return annotations;
 212     }
 213 
 214     /**
 215      * Returns the {@code Class} object representing the class or interface
 216      * that declares the method represented by this object.
 217      */
 218     @Override
 219     public Class<?> getDeclaringClass() {
 220         return clazz;
 221     }
 222 
 223     /**
 224      * Returns the name of the method represented by this {@code Method}
 225      * object, as a {@code String}.
 226      */
 227     @Override
 228     public String getName() {
 229         return name;
 230     }
 231 
 232     /**
 233      * {@inheritDoc}
 234      */
 235     @Override
 236     public int getModifiers() {
 237         return modifiers;
 238     }
 239 
 240     /**
 241      * {@inheritDoc}
 242      * @throws GenericSignatureFormatError {@inheritDoc}
 243      * @since 1.5
 244      */
 245     @Override
 246     @SuppressWarnings({"rawtypes", "unchecked"})
 247     public TypeVariable<Method>[] getTypeParameters() {
 248         if (getGenericSignature() != null)
 249             return (TypeVariable<Method>[])getGenericInfo().getTypeParameters();
 250         else
 251             return (TypeVariable<Method>[])new TypeVariable[0];
 252     }
 253 
 254     /**
 255      * Returns a {@code Class} object that represents the formal return type
 256      * of the method represented by this {@code Method} object.
 257      *
 258      * @return the return type for the method this object represents
 259      */
 260     public Class<?> getReturnType() {
 261         return returnType;
 262     }
 263 
 264     /**
 265      * Returns a {@code Type} object that represents the formal return
 266      * type of the method represented by this {@code Method} object.
 267      *
 268      * <p>If the return type is a parameterized type,
 269      * the {@code Type} object returned must accurately reflect
 270      * the actual type arguments used in the source code.
 271      *
 272      * <p>If the return type is a type variable or a parameterized type, it
 273      * is created. Otherwise, it is resolved.
 274      *
 275      * @return  a {@code Type} object that represents the formal return
 276      *     type of the underlying  method
 277      * @throws GenericSignatureFormatError
 278      *     if the generic method signature does not conform to the format
 279      *     specified in
 280      *     <cite>The Java&trade; Virtual Machine Specification</cite>
 281      * @throws TypeNotPresentException if the underlying method's
 282      *     return type refers to a non-existent type declaration
 283      * @throws MalformedParameterizedTypeException if the
 284      *     underlying method's return typed refers to a parameterized
 285      *     type that cannot be instantiated for any reason
 286      * @since 1.5
 287      */
 288     public Type getGenericReturnType() {
 289       if (getGenericSignature() != null) {
 290         return getGenericInfo().getReturnType();
 291       } else { return getReturnType();}
 292     }
 293 
 294     @Override
 295     Class<?>[] getSharedParameterTypes() {
 296         return parameterTypes;
 297     }
 298 
 299     @Override
 300     Class<?>[] getSharedExceptionTypes() {
 301         return exceptionTypes;
 302     }
 303 
 304     /**
 305      * {@inheritDoc}
 306      */
 307     @Override
 308     public Class<?>[] getParameterTypes() {
 309         return parameterTypes.clone();
 310     }
 311 
 312     /**
 313      * {@inheritDoc}
 314      * @since 1.8
 315      */
 316     public int getParameterCount() { return parameterTypes.length; }
 317 
 318 
 319     /**
 320      * {@inheritDoc}
 321      * @throws GenericSignatureFormatError {@inheritDoc}
 322      * @throws TypeNotPresentException {@inheritDoc}
 323      * @throws MalformedParameterizedTypeException {@inheritDoc}
 324      * @since 1.5
 325      */
 326     @Override
 327     public Type[] getGenericParameterTypes() {
 328         return super.getGenericParameterTypes();
 329     }
 330 
 331     /**
 332      * {@inheritDoc}
 333      */
 334     @Override
 335     public Class<?>[] getExceptionTypes() {
 336         return exceptionTypes.clone();
 337     }
 338 
 339     /**
 340      * {@inheritDoc}
 341      * @throws GenericSignatureFormatError {@inheritDoc}
 342      * @throws TypeNotPresentException {@inheritDoc}
 343      * @throws MalformedParameterizedTypeException {@inheritDoc}
 344      * @since 1.5
 345      */
 346     @Override
 347     public Type[] getGenericExceptionTypes() {
 348         return super.getGenericExceptionTypes();
 349     }
 350 
 351     /**
 352      * Compares this {@code Method} against the specified object.  Returns
 353      * true if the objects are the same.  Two {@code Methods} are the same if
 354      * they were declared by the same class and have the same name
 355      * and formal parameter types and return type.
 356      */
 357     public boolean equals(Object obj) {
 358         if (obj != null && obj instanceof Method) {
 359             Method other = (Method)obj;
 360             if ((getDeclaringClass() == other.getDeclaringClass())
 361                 && (getName() == other.getName())) {
 362                 if (!returnType.equals(other.getReturnType()))
 363                     return false;
 364                 return equalParamTypes(parameterTypes, other.parameterTypes);
 365             }
 366         }
 367         return false;
 368     }
 369 
 370     /**
 371      * Returns a hashcode for this {@code Method}.  The hashcode is computed
 372      * as the exclusive-or of the hashcodes for the underlying
 373      * method's declaring class name and the method's name.
 374      */
 375     public int hashCode() {
 376         return getDeclaringClass().getName().hashCode() ^ getName().hashCode();
 377     }
 378 
 379     /**
 380      * Returns a string describing this {@code Method}.  The string is
 381      * formatted as the method access modifiers, if any, followed by
 382      * the method return type, followed by a space, followed by the
 383      * class declaring the method, followed by a period, followed by
 384      * the method name, followed by a parenthesized, comma-separated
 385      * list of the method's formal parameter types. If the method
 386      * throws checked exceptions, the parameter list is followed by a
 387      * space, followed by the word "{@code throws}" followed by a
 388      * comma-separated list of the thrown exception types.
 389      * For example:
 390      * <pre>
 391      *    public boolean java.lang.Object.equals(java.lang.Object)
 392      * </pre>
 393      *
 394      * <p>The access modifiers are placed in canonical order as
 395      * specified by "The Java Language Specification".  This is
 396      * {@code public}, {@code protected} or {@code private} first,
 397      * and then other modifiers in the following order:
 398      * {@code abstract}, {@code default}, {@code static}, {@code final},
 399      * {@code synchronized}, {@code native}, {@code strictfp}.
 400      *
 401      * @return a string describing this {@code Method}
 402      *
 403      * @jls 8.4.3 Method Modifiers
 404      * @jls 9.4 Method Declarations
 405      * @jls 9.6.1 Annotation Type Elements
 406      */
 407     public String toString() {
 408         return sharedToString(Modifier.methodModifiers(),
 409                               isDefault(),
 410                               parameterTypes,
 411                               exceptionTypes);
 412     }
 413 
 414     @Override
 415     void specificToStringHeader(StringBuilder sb) {
 416         sb.append(getReturnType().getTypeName()).append(' ');
 417         sb.append(getDeclaringClass().getTypeName()).append('.');
 418         sb.append(getName());
 419     }
 420 
 421     @Override
 422     String toShortString() {
 423         StringBuilder sb = new StringBuilder("method ");
 424         sb.append(getDeclaringClass().getTypeName()).append('.');
 425         sb.append(getName());
 426         sb.append('(');
 427         StringJoiner sj = new StringJoiner(",");
 428         for (Class<?> parameterType : getParameterTypes()) {
 429             sj.add(parameterType.getTypeName());
 430         }
 431         sb.append(sj);
 432         sb.append(')');
 433         return sb.toString();
 434     }
 435 
 436     /**
 437      * Returns a string describing this {@code Method}, including type
 438      * parameters.  The string is formatted as the method access
 439      * modifiers, if any, followed by an angle-bracketed
 440      * comma-separated list of the method's type parameters, if any,
 441      * including informative bounds of the type parameters, if any,
 442      * followed by the method's generic return type, followed by a
 443      * space, followed by the class declaring the method, followed by
 444      * a period, followed by the method name, followed by a
 445      * parenthesized, comma-separated list of the method's generic
 446      * formal parameter types.
 447      *
 448      * If this method was declared to take a variable number of
 449      * arguments, instead of denoting the last parameter as
 450      * "<code><i>Type</i>[]</code>", it is denoted as
 451      * "<code><i>Type</i>...</code>".
 452      *
 453      * A space is used to separate access modifiers from one another
 454      * and from the type parameters or return type.  If there are no
 455      * type parameters, the type parameter list is elided; if the type
 456      * parameter list is present, a space separates the list from the
 457      * class name.  If the method is declared to throw exceptions, the
 458      * parameter list is followed by a space, followed by the word
 459      * "{@code throws}" followed by a comma-separated list of the generic
 460      * thrown exception types.
 461      *
 462      * <p>The access modifiers are placed in canonical order as
 463      * specified by "The Java Language Specification".  This is
 464      * {@code public}, {@code protected} or {@code private} first,
 465      * and then other modifiers in the following order:
 466      * {@code abstract}, {@code default}, {@code static}, {@code final},
 467      * {@code synchronized}, {@code native}, {@code strictfp}.
 468      *
 469      * @return a string describing this {@code Method},
 470      * include type parameters
 471      *
 472      * @since 1.5
 473      *
 474      * @jls 8.4.3 Method Modifiers
 475      * @jls 9.4 Method Declarations
 476      * @jls 9.6.1 Annotation Type Elements
 477      */
 478     @Override
 479     public String toGenericString() {
 480         return sharedToGenericString(Modifier.methodModifiers(), isDefault());
 481     }
 482 
 483     @Override
 484     void specificToGenericStringHeader(StringBuilder sb) {
 485         Type genRetType = getGenericReturnType();
 486         sb.append(genRetType.getTypeName()).append(' ');
 487         sb.append(getDeclaringClass().getTypeName()).append('.');
 488         sb.append(getName());
 489     }
 490 
 491     /**
 492      * Invokes the underlying method represented by this {@code Method}
 493      * object, on the specified object with the specified parameters.
 494      * Individual parameters are automatically unwrapped to match
 495      * primitive formal parameters, and both primitive and reference
 496      * parameters are subject to method invocation conversions as
 497      * necessary.
 498      *
 499      * <p>If the underlying method is static, then the specified {@code obj}
 500      * argument is ignored. It may be null.
 501      *
 502      * <p>If the number of formal parameters required by the underlying method is
 503      * 0, the supplied {@code args} array may be of length 0 or null.
 504      *
 505      * <p>If the underlying method is an instance method, it is invoked
 506      * using dynamic method lookup as documented in The Java Language
 507      * Specification, section 15.12.4.4; in particular,
 508      * overriding based on the runtime type of the target object may occur.
 509      *
 510      * <p>If the underlying method is static, the class that declared
 511      * the method is initialized if it has not already been initialized.
 512      *
 513      * <p>If the method completes normally, the value it returns is
 514      * returned to the caller of invoke; if the value has a primitive
 515      * type, it is first appropriately wrapped in an object. However,
 516      * if the value has the type of an array of a primitive type, the
 517      * elements of the array are <i>not</i> wrapped in objects; in
 518      * other words, an array of primitive type is returned.  If the
 519      * underlying method return type is void, the invocation returns
 520      * null.
 521      *
 522      * @param obj  the object the underlying method is invoked from
 523      * @param args the arguments used for the method call
 524      * @return the result of dispatching the method represented by
 525      * this object on {@code obj} with parameters
 526      * {@code args}
 527      *
 528      * @exception IllegalAccessException    if this {@code Method} object
 529      *              is enforcing Java language access control and the underlying
 530      *              method is inaccessible.
 531      * @exception IllegalArgumentException  if the method is an
 532      *              instance method and the specified object argument
 533      *              is not an instance of the class or interface
 534      *              declaring the underlying method (or of a subclass
 535      *              or implementor thereof); if the number of actual
 536      *              and formal parameters differ; if an unwrapping
 537      *              conversion for primitive arguments fails; or if,
 538      *              after possible unwrapping, a parameter value
 539      *              cannot be converted to the corresponding formal
 540      *              parameter type by a method invocation conversion.
 541      * @exception InvocationTargetException if the underlying method
 542      *              throws an exception.
 543      * @exception NullPointerException      if the specified object is null
 544      *              and the method is an instance method.
 545      * @exception ExceptionInInitializerError if the initialization
 546      * provoked by this method fails.
 547      */
 548     @CallerSensitive
 549     @ForceInline // to ensure Reflection.getCallerClass optimization
 550     @HotSpotIntrinsicCandidate
 551     public Object invoke(Object obj, Object... args)
 552         throws IllegalAccessException, IllegalArgumentException,
 553            InvocationTargetException
 554     {
 555         if (!override) {
 556             Class<?> caller = Reflection.getCallerClass();
 557             checkAccess(caller, clazz,
 558                         Modifier.isStatic(modifiers) ? null : obj.getClass(),
 559                         modifiers);
 560         }
 561         MethodAccessor ma = methodAccessor;             // read volatile
 562         if (ma == null) {
 563             ma = acquireMethodAccessor();
 564         }
 565         return ma.invoke(obj, args);
 566     }
 567 
 568     /**
 569      * Returns {@code true} if this method is a bridge
 570      * method; returns {@code false} otherwise.
 571      *
 572      * @return true if and only if this method is a bridge
 573      * method as defined by the Java Language Specification.
 574      * @since 1.5
 575      */
 576     public boolean isBridge() {
 577         return (getModifiers() & Modifier.BRIDGE) != 0;
 578     }
 579 
 580     /**
 581      * {@inheritDoc}
 582      * @since 1.5
 583      */
 584     @Override
 585     public boolean isVarArgs() {
 586         return super.isVarArgs();
 587     }
 588 
 589     /**
 590      * {@inheritDoc}
 591      * @jls 13.1 The Form of a Binary
 592      * @since 1.5
 593      */
 594     @Override
 595     public boolean isSynthetic() {
 596         return super.isSynthetic();
 597     }
 598 
 599     /**
 600      * Returns {@code true} if this method is a default
 601      * method; returns {@code false} otherwise.
 602      *
 603      * A default method is a public non-abstract instance method, that
 604      * is, a non-static method with a body, declared in an interface
 605      * type.
 606      *
 607      * @return true if and only if this method is a default
 608      * method as defined by the Java Language Specification.
 609      * @since 1.8
 610      */
 611     public boolean isDefault() {
 612         // Default methods are public non-abstract instance methods
 613         // declared in an interface.
 614         return ((getModifiers() & (Modifier.ABSTRACT | Modifier.PUBLIC | Modifier.STATIC)) ==
 615                 Modifier.PUBLIC) && getDeclaringClass().isInterface();
 616     }
 617 
 618     // NOTE that there is no synchronization used here. It is correct
 619     // (though not efficient) to generate more than one MethodAccessor
 620     // for a given Method. However, avoiding synchronization will
 621     // probably make the implementation more scalable.
 622     private MethodAccessor acquireMethodAccessor() {
 623         // First check to see if one has been created yet, and take it
 624         // if so
 625         MethodAccessor tmp = null;
 626         if (root != null) tmp = root.getMethodAccessor();
 627         if (tmp != null) {
 628             methodAccessor = tmp;
 629         } else {
 630             // Otherwise fabricate one and propagate it up to the root
 631             tmp = reflectionFactory.newMethodAccessor(this);
 632             setMethodAccessor(tmp);
 633         }
 634 
 635         return tmp;
 636     }
 637 
 638     // Returns MethodAccessor for this Method object, not looking up
 639     // the chain to the root
 640     MethodAccessor getMethodAccessor() {
 641         return methodAccessor;
 642     }
 643 
 644     // Sets the MethodAccessor for this Method object and
 645     // (recursively) its root
 646     void setMethodAccessor(MethodAccessor accessor) {
 647         methodAccessor = accessor;
 648         // Propagate up
 649         if (root != null) {
 650             root.setMethodAccessor(accessor);
 651         }
 652     }
 653 
 654     /**
 655      * Returns the default value for the annotation member represented by
 656      * this {@code Method} instance.  If the member is of a primitive type,
 657      * an instance of the corresponding wrapper type is returned. Returns
 658      * null if no default is associated with the member, or if the method
 659      * instance does not represent a declared member of an annotation type.
 660      *
 661      * @return the default value for the annotation member represented
 662      *     by this {@code Method} instance.
 663      * @throws TypeNotPresentException if the annotation is of type
 664      *     {@link Class} and no definition can be found for the
 665      *     default class value.
 666      * @since  1.5
 667      */
 668     public Object getDefaultValue() {
 669         if  (annotationDefault == null)
 670             return null;
 671         Class<?> memberType = AnnotationType.invocationHandlerReturnType(
 672             getReturnType());
 673         Object result = AnnotationParser.parseMemberValue(
 674             memberType, ByteBuffer.wrap(annotationDefault),
 675             SharedSecrets.getJavaLangAccess().
 676                 getConstantPool(getDeclaringClass()),
 677             getDeclaringClass());
 678         if (result instanceof ExceptionProxy) {
 679             if (result instanceof TypeNotPresentExceptionProxy) {
 680                 TypeNotPresentExceptionProxy proxy = (TypeNotPresentExceptionProxy)result;
 681                 throw new TypeNotPresentException(proxy.typeName(), proxy.getCause());
 682             }
 683             throw new AnnotationFormatError("Invalid default: " + this);
 684         }
 685         return result;
 686     }
 687 
 688     /**
 689      * {@inheritDoc}
 690      * @throws NullPointerException  {@inheritDoc}
 691      * @since 1.5
 692      */
 693     public <T extends Annotation> T getAnnotation(Class<T> annotationClass) {
 694         return super.getAnnotation(annotationClass);
 695     }
 696 
 697     /**
 698      * {@inheritDoc}
 699      * @since 1.5
 700      */
 701     public Annotation[] getDeclaredAnnotations()  {
 702         return super.getDeclaredAnnotations();
 703     }
 704 
 705     /**
 706      * {@inheritDoc}
 707      * @since 1.5
 708      */
 709     @Override
 710     public Annotation[][] getParameterAnnotations() {
 711         return sharedGetParameterAnnotations(parameterTypes, parameterAnnotations);
 712     }
 713 
 714     /**
 715      * {@inheritDoc}
 716      * @since 1.8
 717      */
 718     @Override
 719     public AnnotatedType getAnnotatedReturnType() {
 720         return getAnnotatedReturnType0(getGenericReturnType());
 721     }
 722 
 723     @Override
 724     boolean handleParameterNumberMismatch(int resultLength, int numParameters) {
 725         throw new AnnotationFormatError("Parameter annotations don't match number of parameters");
 726     }
 727 }