Index: tomahawk/build/build.xml
===================================================================
--- tomahawk/build/build.xml	(revision 210020)
+++ tomahawk/build/build.xml	(working copy)
@@ -424,6 +424,23 @@
                classpathref="compile.classpath">
         </javac>
     </target>
+	
+	<!--
+ 	For the use of caching in the included resources it is needed to update
+	the property lastModified from a properties.file. It is used in Used in the resources URL, 
+	to enable caching the resources on the client
+	-->
+	<target name="compile-updating-lastmodified" depends="compile" if="update.lastmodified">
+		<tstamp>
+	        <format property="lastModified" pattern="yyyy-MM-dd HH:mm:ss Z"/>
+	    </tstamp>
+		<copy todir="${classes.dir}" filtering="on">
+	    	<fileset dir="${jar.fileset2.dir}" includes="**/*.properties"/>
+			<filterset>
+				<filter token="lastModified" value="${lastModified}"/>
+			</filterset>
+		</copy>
+	</target>
 
     <!--
     Clean all subprojects (plus top-level stuff).
@@ -455,7 +472,7 @@
     <!--
     Jar current subproject.
     -->
-    <target name="jar" depends="compile,resolve-tld-entities" if="jar.file">
+	<target name="jar" depends="compile-updating-lastmodified,resolve-tld-entities" if="jar.file">
 
         <mkdir dir="${dist.dir}"/>