JBossDeveloper

hi everyone

when i edit the (infinispandemo.form)  using intellij idea and build it using (mvn clean package -DskipTests) command ,it is build success

after tacking the infinispan-demo.jar from the target to my distribution and try to run (runguidemo.bat) it give me an error as below:

log4j:WARN No appenders could be found for logger (org.jboss.logging).

log4j:WARN Please initialize the log4j system properly.

log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more in

fo.

Exception in thread "main" java.lang.NullPointerException

        at org.infinispan.demo.InfinispanDemo.$$$setupUI$$$(InfinispanDemo.java)

        at org.infinispan.demo.InfinispanDemo.<init>(InfinispanDemo.java:120)

        at org.infinispan.demo.InfinispanDemo.main(InfinispanDemo.java:132)

Sorry how i can solve that error message or what the meaning of it ?

Thanks for your co-operation

medo