81     {
  82         JavaLangAccess jla = sun.misc.SharedSecrets.getJavaLangAccess();
  83         AnnotationType result = jla.getAnnotationType(annotationClass); // volatile read
  84         if (result == null) {
  85             result = new AnnotationType(annotationClass);
  86             // try to CAS the AnnotationType: null -> result
  87             if (!jla.casAnnotationType(annotationClass, null, result)) {
  88                 // somebody was quicker -> read it's result
  89                 result = jla.getAnnotationType(annotationClass);
  90                 assert result != null;
  91             }
  92         }
  93 
  94         return result;
  95     }
  96 
  97     /**
  98      * Sole constructor.
  99      *
 100      * @param annotationClass the class object for the annotation type
 101      * @throw IllegalArgumentException if the specified class object for
 102      *     does not represent a valid annotation type
 103      */
 104     private AnnotationType(final Class<? extends Annotation> annotationClass) {
 105         if (!annotationClass.isAnnotation())
 106             throw new IllegalArgumentException("Not an annotation type");
 107 
 108         Method[] methods =
 109             AccessController.doPrivileged(new PrivilegedAction<>() {
 110                 public Method[] run() {
 111                     // Initialize memberTypes and defaultValues
 112                     return annotationClass.getDeclaredMethods();
 113                 }
 114             });
 115 
 116         memberTypes = new HashMap<>(methods.length+1, 1.0f);
 117         memberDefaults = new HashMap<>(0);
 118         members = new HashMap<>(methods.length+1, 1.0f);
 119 
 120         for (Method method : methods) {
 121             if (method.getParameterTypes().length != 0)

  81     {
  82         JavaLangAccess jla = sun.misc.SharedSecrets.getJavaLangAccess();
  83         AnnotationType result = jla.getAnnotationType(annotationClass); // volatile read
  84         if (result == null) {
  85             result = new AnnotationType(annotationClass);
  86             // try to CAS the AnnotationType: null -> result
  87             if (!jla.casAnnotationType(annotationClass, null, result)) {
  88                 // somebody was quicker -> read it's result
  89                 result = jla.getAnnotationType(annotationClass);
  90                 assert result != null;
  91             }
  92         }
  93 
  94         return result;
  95     }
  96 
  97     /**
  98      * Sole constructor.
  99      *
 100      * @param annotationClass the class object for the annotation type
 101      * @throws IllegalArgumentException if the specified class object for
 102      *         does not represent a valid annotation type
 103      */
 104     private AnnotationType(final Class<? extends Annotation> annotationClass) {
 105         if (!annotationClass.isAnnotation())
 106             throw new IllegalArgumentException("Not an annotation type");
 107 
 108         Method[] methods =
 109             AccessController.doPrivileged(new PrivilegedAction<>() {
 110                 public Method[] run() {
 111                     // Initialize memberTypes and defaultValues
 112                     return annotationClass.getDeclaredMethods();
 113                 }
 114             });
 115 
 116         memberTypes = new HashMap<>(methods.length+1, 1.0f);
 117         memberDefaults = new HashMap<>(0);
 118         members = new HashMap<>(methods.length+1, 1.0f);
 119 
 120         for (Method method : methods) {
 121             if (method.getParameterTypes().length != 0)