web connectors metrics uses long value as int in JBoss EAP 6.4

Issue

• In JBoss EAP 6.4, the 'bytesSent' metrics on web subsystem connectors is defined in the code to be ModelType.INT, but the data it received from the JBossWeb is a long.
• We see the following exception checking bytesSent via CLI once it exceeds the int range:

java.lang.NumberFormatException: For input string: "2219513327"
at org.jboss.as.jmx.model.TypeConverters$IntegerValueAccessor.fromModelNode(TypeConverters.java:778)
at org.jboss.as.jmx.model.TypeConverters$SimpleTypeConverter.fromModelNode(TypeConverters.java:223)
at org.jboss.as.jmx.model.TypeConverters.fromModelNode(TypeConverters.java:114)
at org.jboss.as.jmx.model.ModelControllerMBeanHelper.getAttribute(ModelControllerMBeanHelper.java:257)
at org.jboss.as.jmx.model.ModelControllerMBeanHelper.getAttribute(ModelControllerMBeanHelper.java:212)
at org.jboss.as.jmx.model.ModelControllerMBeanServerPlugin.getAttribute(ModelControllerMBeanServerPlugin.java:127)
at org.jboss.as.jmx.PluggableMBeanServerImpl.getAttribute(PluggableMBeanServerImpl.java:356)
at org.jboss.as.jmx.BlockingNotificationMBeanServer.getAttribute(BlockingNotificationMBeanServer.java:148)
at org.jboss.remotingjmx.protocol.v2.ServerProxy$GetAttributeHandler.handle(ServerProxy.java:691)
at org.jboss.remotingjmx.protocol.v2.ServerCommon$MessageReciever$1$1.run(ServerCommon.java:153)
at org.jboss.as.jmx.ServerInterceptorFactory$Interceptor$1.run(ServerInterceptorFactory.java:75)
at org.jboss.as.jmx.ServerInterceptorFactory$Interceptor$1.run(ServerInterceptorFactory.java:70)
at org.jboss.as.jmx.ServerInterceptorFactory$Interceptor.handleEvent(ServerInterceptorFactory.java:70)
at org.jboss.remotingjmx.protocol.v2.ServerCommon$MessageReciever$1.run(ServerCommon.java:149)