put generics back in Struts2Factory.

git-svn-id: https://google-guice.googlecode.com/svn/trunk@1439 d779f126-a31b-0410-b53b-1d3aecad763e
diff --git a/extensions/struts2/src/com/google/inject/struts2/Struts2Factory.java b/extensions/struts2/src/com/google/inject/struts2/Struts2Factory.java
index 5b57396..8ae0f00 100644
--- a/extensions/struts2/src/com/google/inject/struts2/Struts2Factory.java
+++ b/extensions/struts2/src/com/google/inject/struts2/Struts2Factory.java
@@ -97,7 +97,7 @@
   }
 
   @Override @SuppressWarnings("unchecked")
-  public Object buildBean(Class clazz, Map extraContext) {
+  public Object buildBean(Class clazz, Map<String, Object> extraContext) {
     if (strutsInjector == null) {
       synchronized (this) {
         if (strutsInjector == null) {