- use java 5 generics

git-svn-id: https://svn.apache.org/repos/asf/lenya/trunk@1027495 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/org.apache.lenya.core.usecase/src/main/java/org/apache/lenya/cms/usecase/Usecase.java b/org.apache.lenya.core.usecase/src/main/java/org/apache/lenya/cms/usecase/Usecase.java
index d53919c..ebf8744 100644
--- a/org.apache.lenya.core.usecase/src/main/java/org/apache/lenya/cms/usecase/Usecase.java
+++ b/org.apache.lenya.core.usecase/src/main/java/org/apache/lenya/cms/usecase/Usecase.java
@@ -144,14 +144,14 @@
      * from being executed.
      * @return A list of {@link UsecaseMessage} objects.
      */
-    List getErrorMessages();
+    List<UsecaseMessage> getErrorMessages();
 
     /**
      * Returns the info messages from the previous operation. Info messages do not prevent the
      * operation from being executed.
      * @return A list of {@link UsecaseMessage} objects.
      */
-    List getInfoMessages();
+    List<UsecaseMessage> getInfoMessages();
 
     /**
      * Determine if the usecase has error messages. Provides a way of checking for errors without