this is meant only for when the bootup fails

changelog.html

@@ -62,7 +62,10 @@ Upcoming changes</a>
 <!-- these changes are controlled by the release process. DO NOT MODIFY -->
 <div id="rc" style="display:none;"><!--=BEGIN=-->
 <h3><a name=v1.423>What's new in 1.423</a> <!--=DATE=--></h3>
-<!--=RC-CHANGES=-->
+<ul class=image>
+  <li class='major bug'>
+    Fixed a boot problem in 1.422.
+</ul>
 </div><!--=END=-->
 <h3><a name=v1.422>What's new in 1.422</a> (2011/07/25)</h3>
 <ul class=image>

core/src/main/java/hudson/WebAppMain.java

@@ -212,6 +212,7 @@ public final class WebAppMain implements ServletContextListener {
             initThread = new Thread("hudson initialization thread") {
                 @Override
                 public void run() {
+                    boolean success = false;
                     try {
                         Jenkins instance = new Hudson(home, context);
                         context.setAttribute(APP, instance);
@@ -224,6 +225,7 @@ public final class WebAppMain implements ServletContextListener {
                                 User.getUnknown().getBuilds();
                             }
                         }, 1000*10);
+                        success = true;
                     } catch (Error e) {
                         LOGGER.log(Level.SEVERE, "Failed to initialize Jenkins",e);
                         context.setAttribute(APP,new HudsonFailedToLoad(e));
@@ -233,7 +235,7 @@ public final class WebAppMain implements ServletContextListener {
                         context.setAttribute(APP,new HudsonFailedToLoad(e));
                     } finally {
                         Jenkins instance = Jenkins.getInstance();
-                        if(instance!=null)
+                        if(!success && instance!=null)
                             instance.cleanUp();
                     }
                 }