Index: applications/editors/josm/plugins/terracer/build.xml
===================================================================
--- applications/editors/josm/plugins/terracer/build.xml	(revision 18923)
+++ applications/editors/josm/plugins/terracer/build.xml	(revision 18924)
@@ -1,2 +1,27 @@
+<!--
+** This is a template build file for the terracer plugin
+**
+** Maintaining versions
+** ====================
+** see README.template
+**
+** Usage
+** =====
+** To build it run
+**
+**    > ant  dist
+**
+** To install the generated plugin locally (in your default plugin directory) run
+**
+**    > ant  install
+**
+** To build against the core in ../../core, create a correct manifest and deploy to
+** SVN, 
+**    set the properties commit.message and plugin.main.version
+** and run
+**    > ant  publish
+**
+**
+-->
 <project name="terracer" default="dist" basedir=".">
     <property name="josm"                   location="../../core/dist/josm-custom.jar"/>
@@ -5,4 +30,10 @@
     <property name="plugin.jar"             value="${plugin.dist.dir}/${ant.project.name}.jar"/>
     <property name="ant.build.javac.target" value="1.5"/>
+	
+
+    <property name="commit.message" value="Updated to new referrer support in OsmPrimitive" />		
+    <property name="plugin.main.version" value="2565" />
+    	
+    	
     <target name="init">
         <mkdir dir="${plugin.build.dir}"/>
@@ -26,5 +57,5 @@
                 <attribute name="Plugin-Description" value="Make terraced houses out of single blocks."/>
                 <attribute name="Plugin-Link" value="http://wiki.openstreetmap.org/wiki/JOSM/Plugins/Terracer"/>
-                <attribute name="Plugin-Mainversion" value="2219"/>
+                <attribute name="Plugin-Mainversion" value="${plugin.main.version}"/>
                 <attribute name="Plugin-Version" value="${version.entry.commit.revision}"/>
             </manifest>
@@ -54,3 +85,80 @@
         <copy file="${plugin.jar}" todir="${josm.plugins.dir}"/>
     </target>
+	
+	<!--
+		 ************************** Publishing the plugin *********************************** 
+		-->
+			<!--
+			  ** extracts the JOSM release for the JOSM version in ../core and saves it in the 
+			  ** property ${coreversion.info.entry.revision}
+			  **
+			-->
+			<target name="core-info">
+		        <exec append="false" output="core.info.xml" executable="svn" failifexecutionfails="false">
+		                    <env key="LANG" value="C"/>
+		                    <arg value="info"/>
+		                    <arg value="--xml"/>
+		                    <arg value="../../core"/>
+		        </exec>
+		        <xmlproperty file="core.info.xml" prefix="coreversion" keepRoot="true" collapseAttributes="true"/>
+				<echo>Building against core revision ${coreversion.info.entry.revision}.</echo>			
+				<echo>Plugin-Mainversion is set to ${plugin.main.version}.</echo>
+				<delete file="core.info.xml" />
+			</target>
+
+			<!--
+			 ** commits the source tree for this plugin
+			-->
+			<target name="commit-current">
+				<echo>Commiting the plugin source with message '${commit.message}' ...</echo>
+			    <exec append="true" output="svn.log" executable="svn" failifexecutionfails="false">
+			                    <env key="LANG" value="C"/>
+			                    <arg value="commit"/>
+			                    <arg value="-m '${commit.message}'"/>
+			                    <arg value="."/>
+			    </exec>	    
+			</target>
+
+			<!--
+			** updates (svn up) the source tree for this plugin
+			-->
+			<target name="update-current">
+				<echo>Updating plugin source ...</echo>
+			    <exec append="true" output="svn.log" executable="svn" failifexecutionfails="false">
+			                    <env key="LANG" value="C"/>
+			                    <arg value="up"/>
+			                    <arg value="."/>
+			    </exec>	    
+				<echo>Updating ${plugin.jar} ...</echo>
+			    <exec append="true" output="svn.log" executable="svn" failifexecutionfails="false">
+			                    <env key="LANG" value="C"/>
+			                    <arg value="up"/>
+			                    <arg value="../dist/${plugin.jar}"/>
+			    </exec>	    
+			</target>
+			
+			<!--
+			 ** commits the plugin.jar 
+			 -->
+			<target name="commit-dist">
+					<echo>
+	***** Properties of published ${plugin.jar} *****
+	Commit message    : '${commit.message}'					
+	Plugin-Mainversion: ${plugin.main.version}
+	JOSM build version: ${coreversion.info.entry.revision}
+	Plugin-Version    : ${version.entry.commit.revision}
+	***** / Properties of published ${plugin.jar} *****					
+						
+	Now commiting ${plugin.jar} ...
+	</echo>					
+				    <exec append="true" output="svn.log" executable="svn" failifexecutionfails="false">
+				                    <env key="LANG" value="C"/>
+					    			<arg value="-m '${commit.message}'"/>
+				    				<arg value="commit"/>	                			
+	            			        <arg value="${plugin.jar}"/>
+				    </exec>	    
+		   	</target>
+					
+			<target name="publish" depends="core-info,commit-current,update-current,clean,dist,commit-dist">
+			</target>		
 </project>
Index: applications/editors/josm/plugins/terracer/src/terracer/ReverseTerraceAction.java
===================================================================
--- applications/editors/josm/plugins/terracer/src/terracer/ReverseTerraceAction.java	(revision 18923)
+++ applications/editors/josm/plugins/terracer/src/terracer/ReverseTerraceAction.java	(revision 18924)
@@ -17,5 +17,4 @@
 import org.openstreetmap.josm.data.osm.OsmPrimitive;
 import org.openstreetmap.josm.data.osm.Way;
-import org.openstreetmap.josm.data.osm.visitor.CollectBackReferencesVisitor;
 import org.openstreetmap.josm.tools.Shortcut;
 
@@ -84,7 +83,5 @@
 			for (Node n : w.getNodes()) {
 				if (!visitedNodes.contains(n)) {
-					CollectBackReferencesVisitor v = new CollectBackReferencesVisitor(Main.main.getCurrentDataSet());
-					v.visit(n);
-					for (OsmPrimitive prim : v.getData()) {
+					for (OsmPrimitive prim : n.getReferrers()) {
 						if (prim.keySet().contains("building") && prim instanceof Way) {
 							front.add((Way)prim);