help for jahia pluto Branch

Hi
  Anyone helps me ?
I have checked out the jahia-pluto-branch ,and now ant deploy-all,When I start the tomcat ,but some wrongs displayed.so why?
   766032 [Thread-14] DEBUG org.jahia.services.webapps_deployer.JahiaTomcatWebAppsD
eployerBaseService.deploy:453 - Found new application to deploy : demo.war
766547 [Thread-14] ERROR org.jahia.services.deamons.filewatcher.webappobserver.W
ebAppsObserver.update:215 - Web apps observer error :
java.lang.VerifyError: (class: org/apache/jetspeed/tools/pamanager/PortletApplic
ationManager, method: deployServer signature: (Ljava/lang/String;Ljava/lang/Stri
ng;Ljava/lang/String;Ljava/lang/String;ILjava/lang/String;Ljava/lang/String;)V)
Incompatible object argument for functih0?g??????霉2?煤2
        at org.jahia.services.webapps_deployer.JahiaTomcatWebAppsDeployerBaseSer
vice.deployPortletWarFile(JahiaTomcatWebAppsDeployerBaseService.java:345)
        at org.jahia.services.webapps_deployer.JahiaTomcatWebAppsDeployerBaseSer
vice.deploy(JahiaTomcatWebAppsDeployerBaseService.java:175)
        at org.jahia.services.webapps_deployer.JahiaTomcatWebAppsDeployerBaseSer
vice.deploy(JahiaTomcatWebAppsDeployerBaseService.java:462)
        at org.jahia.services.deamons.filewatcher.webappobserver.WebAppsObserver
.update(WebAppsObserver.java:210)
        at java.util.Observable.notifyObservers(Observable.java:142)
        at org.jahia.tools.files.FileWatcher$FileWatcherTask.run(FileWatcher.jav
a:97)
        at java.util.TimerThread.mainLoop(Timer.java:432)
        at java.util.TimerThread.run(Timer.java:382)
766547 [Thread-14]  INFO org.jahia.services.database.ConnectionDispenser.abortCo
nnection:235 - abortConnection : null