Needs mailer 1.4 to avoid cyclic dependencies

core/src/main/java/jenkins/model/JenkinsLocationConfiguration.java

 package jenkins.model;
 
 import hudson.Extension;
+import hudson.Util;
 import hudson.XmlFile;
 import net.sf.json.JSONObject;
 import org.kohsuke.stapler.StaplerRequest;
@@ -66,11 +67,14 @@ public class JenkinsLocationConfiguration extends GlobalConfiguration {
     }
 
     public String getUrl() {
-        return hudsonUrl;
+        return jenkinsUrl;
     }
 
     public void setUrl(String hudsonUrl) {
-        this.hudsonUrl = hudsonUrl;
+        String url = Util.nullify(hudsonUrl);
+        if(url!=null && !url.endsWith("/"))
+            url += '/';
+        this.jenkinsUrl = url;
         save();
     }
 

test/pom.xml

@@ -79,7 +79,7 @@ THE SOFTWARE.
     <dependency>
       <groupId>org.jenkins-ci.plugins</groupId>
       <artifactId>mailer</artifactId>
-      <version>1.2</version>
+      <version>1.4-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>org.mortbay.jetty</groupId>

war/pom.xml

@@ -319,7 +319,7 @@ THE SOFTWARE.
                 <artifactItem>
                   <groupId>org.jenkins-ci.plugins</groupId>
                   <artifactId>mailer</artifactId>
-                  <version>1.3</version>
+                  <version>1.4-SNAPSHOT</version>
                   <type>hpi</type>
                 </artifactItem>
               </artifactItems>