- Don't do 'mtn list changed' if not in a workspace or not needed

router/java/build.xml

@@ -53,7 +53,7 @@
         </javac>
     </target>
 
-    <target name="jar" depends="compile, jarUpToDate" unless="jar.uptodate" >
+    <target name="listChangedFiles" if="mtn.available" >
         <exec executable="mtn" outputproperty="workspace.changes" errorproperty="mtn.error2" failifexecutionfails="false" >
             <arg value="list" />
             <arg value="changed" />
@@ -65,6 +65,11 @@
             <arg value="[:space:]" />
             <arg value="," />
         </exec>
+    </target>
+
+    <target name="jar" depends="compile, jarUpToDate, listChangedFiles" unless="jar.uptodate" >
+        <!-- set if unset -->
+        <property name="workspace.changes.tr" value="" />
         <jar destfile="./build/router.jar" basedir="./build/obj" includes="**/*.class" >
             <manifest>
                 <attribute name="Build-Date" value="${build.timestamp}" />

router/java/src/net/i2p/router/RouterVersion.java

@@ -18,7 +18,7 @@ public class RouterVersion {
     /** deprecated */
     public final static String ID = "Monotone";
     public final static String VERSION = CoreVersion.VERSION;
-    public final static long BUILD = 19;
+    public final static long BUILD = 20;
 
     /** for example "-test" */
     public final static String EXTRA = "";