Index: trunk/build.xml
===================================================================
--- trunk/build.xml	(revision 1751)
+++ trunk/build.xml	(revision 1941)
@@ -67,4 +67,5 @@
 				target="1.5" source="1.5" debug="on" encoding="UTF-8">
 			<compilerarg value="-Xlint:deprecation"/>
+			<compilerarg value="-Xlint:unchecked"/>
 		</javac>
 	</target>
@@ -103,4 +104,5 @@
 				target="1.5" source="1.5" debug="on" encoding="UTF-8">
 			<compilerarg value="-Xlint:deprecation"/>
+			<compilerarg value="-Xlint:unchecked"/>
 		</javac>
 	</target>