site command does not work correctly

13:11:10,278 ERROR [org.infinispan.cli.interpreter.Interpreter] (pool-1-thread-1) ISPN019003: Interpreter error: java.lang.NullPointerException
	at org.infinispan.cli.interpreter.statement.SiteStatement.execute(SiteStatement.java:56) [infinispan-cli-server-5.2.0.CR1-redhat-1.jar:5.2.0.CR1-redhat-1]
	at org.infinispan.cli.interpreter.Interpreter.execute(Interpreter.java:161) [infinispan-cli-server-5.2.0.CR1-redhat-1.jar:5.2.0.CR1-redhat-1]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_09]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_09]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_09]
	at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0_09]
	at org.infinispan.jmx.ResourceDMBean.invoke(ResourceDMBean.java:270) [infinispan-core-5.2.0.CR1-redhat-1.jar:5.2.0.CR1-redhat-1]
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [rt.jar:1.7.0_09]
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:791) [rt.jar:1.7.0_09]
	at org.jboss.as.jmx.PluggableMBeanServerImpl$TcclMBeanServer.invoke(PluggableMBeanServerImpl.java:498) [jboss-as-jmx-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4]
	at org.jboss.as.jmx.PluggableMBeanServerImpl.invoke(PluggableMBeanServerImpl.java:246) [jboss-as-jmx-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4]
	at org.jboss.remotingjmx.protocol.v1.ServerProxy$InvokeHandler.handle(ServerProxy.java:1034)
	at org.jboss.remotingjmx.protocol.v1.ServerProxy$MessageReciever$1.run(ServerProxy.java:215)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) [rt.jar:1.7.0_09]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) [rt.jar:1.7.0_09]
	at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_09]