src/share/classes/sun/reflect/annotation/AnnotationType.java

@@ -43,23 +43,22 @@
      * Member name -> type mapping. Note that primitive types
      * are represented by the class objects for the corresponding wrapper
      * types.  This matches the return value that must be used for a
      * dynamic proxy, allowing for a simple isInstance test.
      */
-    private final Map<String, Class<?>> memberTypes = new HashMap<String,Class<?>>();
+    private final Map<String, Class<?>> memberTypes;
 
     /**
      * Member name -> default value mapping.
      */
-    private final Map<String, Object> memberDefaults =
-        new HashMap<String, Object>();
+    private final Map<String, Object> memberDefaults;
 
     /**
      * Member name -> Method object mapping. This (and its assoicated
      * accessor) are used only to generate AnnotationTypeMismatchExceptions.
      */
-    private final Map<String, Method> members = new HashMap<String, Method>();
+    private final Map<String, Method> members;
 
     /**
      * The retention policy for this annotation type.
      */
     private RetentionPolicy retention = RetentionPolicy.RUNTIME;;

@@ -103,10 +102,13 @@
                     // Initialize memberTypes and defaultValues
                     return annotationClass.getDeclaredMethods();
                 }
             });
 
+        memberTypes = new HashMap<String,Class<?>>(methods.length+1, 1.0f);
+        memberDefaults = new HashMap<String, Object>(0);
+        members = new HashMap<String, Method>(methods.length+1, 1.0f);
 
         for (Method method :  methods) {
             if (method.getParameterTypes().length != 0)
                 throw new IllegalArgumentException(method + " has params");
             String name = method.getName();