add static INSTANCE

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/proxy/branches/version-2.0-work@1000294 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/stub/src/main/java/org/apache/commons/proxy2/stub/AnnotationFactory.java b/stub/src/main/java/org/apache/commons/proxy2/stub/AnnotationFactory.java
index b4a6029..ae6dc37 100644
--- a/stub/src/main/java/org/apache/commons/proxy2/stub/AnnotationFactory.java
+++ b/stub/src/main/java/org/apache/commons/proxy2/stub/AnnotationFactory.java
@@ -44,6 +44,9 @@
  * @author Matt Benson
  */
 public class AnnotationFactory {
+    /** Statically available instance */
+    public static final AnnotationFactory INSTANCE = new AnnotationFactory();
+
     //underlying proxyfactory implementation based on org.apache.commons.proxy2.jdk.JdkProxyFactory
 
     private static class InterceptorInvocationHandler implements InvocationHandler, Serializable {