Hi,

I am getting a weird issue with Spring 2.5+JDK 1.6..here is scenario....we are using MBeanProxyFactoryBean to inject the PojoCache and TreeCache of Jboss. It is working perfectly with Spring 2.5+JDK 5 without any issues. But the moment i change the compile setting and Java version to JDK 1.6, the Tree cache and Pojo Cache was not injected by Spring and i am getting the below given NPE.

My jmxcontext.xml is given below:-

Code:
	<!--  JBOSS Cache -->
 	<bean id="jbossServer" class="org.springframework.jmx.support.MBeanServerFactoryBean">
	     <!-- indicate to first look for a server -->
	     <property name="locateExistingServerIfPossible" value="true"/>
   	</bean>
	
	<bean id="PojoCacheMBean" class="org.springframework.jmx.access.MBeanProxyFactoryBean" >
	    <property name="objectName">
	      <value>jboss.cache:service=PojoCache</value>
	    </property>
	    <property name="proxyInterface" >
	    	<value>org.jboss.cache.aop.PojoCacheMBean</value>
	    </property>
	    
	    <property name="server" ref="jbossServer"/>
	    
	</bean>
	<bean id="TreeCacheMBean" class="org.springframework.jmx.access.MBeanProxyFactoryBean">
	    <property name="objectName">
	      <value>jboss.cache:service=TreeCache</value>
	    </property>
	    <property name="proxyInterface" >
	    	<value>org.jboss.cache.TreeCacheMBean</value>
	    </property>
	</bean>
	
	<bean id="treeCache" class="org.ets.ibis.core.cache.JbossCacheServiceImpl" autowire="byName">
	     <!-- set reference to appropriate cache proxy -->
	     <property name="cacheProxy" ref="TreeCacheMBean"/>
	     <property name="appPrefix" value="/app"/>
   	</bean>
   	<bean id="clusterCache" class="org.ets.ibis.core.cache.JbossCacheClusteredServiceImpl" autowire="byName">
	     <!-- set reference to appropriate cache proxy -->
	     <property name="cacheProxy" ref="PojoCacheMBean"/>
	     <property name="appPrefix" value="/app"/>
   	</bean>
   	
   	<!-- Cache edit lock manager -->
   	<bean id="lockManager" class="org.ets.ibis.core.JbossCacheLockManager" lazy-init="true">
	     <!-- set reference to appropriate cache proxy -->
	     <property name="clusterCache" ref="clusterCache"/>
	     <property name="editMapKey" value="allEditObjMap"/>
   	</bean>
   	
   	<!-- Ibis cache manager -->
   	<bean id="ibisCacheManager" class="org.ets.ibis.core.cache.IBISCacheManager" factory-method="getInstance" autowire="byName" >
	     <!-- set reference to appropriate cache proxy -->
	     
	     <property name="localCache" ref="treeCache"/>
	     <property name="clusterCache" ref="clusterCache"/>
	     	      
   	</bean>
The error log is given below:-
Code:
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'treeCache' defined in class path resource [conf/spring/jmxContext.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1338)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByName(AbstractAutowireCapableBeanFactory.java:1029)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:977)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
	... 204 more
Caused by: java.lang.NullPointerException
	at javax.management.MBeanServerInvocationHandler.isLocal(MBeanServerInvocationHandler.java:455)
	at javax.management.MBeanServerInvocationHandler.shouldDoLocally(MBeanServerInvocationHandler.java:405)
	at javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:242)
	at org.springframework.jmx.access.MBeanClientInterceptor.doInvoke(MBeanClientInterceptor.java:405)
	at org.springframework.jmx.access.MBeanClientInterceptor.invoke(MBeanClientInterceptor.java:353)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	at $Proxy61.toString(Unknown Source)
	at java.lang.String.valueOf(String.java:2826)
	at java.lang.StringBuilder.append(StringBuilder.java:115)
	at org.ets.ibis.core.cache.JbossCacheServiceImpl.afterPropertiesSet(JbossCacheServiceImpl.java:40)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1369)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
	... 216 more
Again when we change the settings into JDK5, the application is deployed and running fine...

No clue why i am getting this issue with JDK6. I am using Spring 2.5+JDK6_16+JBoss EAP 4.3+Windows XP.

thanks in advance
Saikiran