After you operated on the Transaction Object page in AEM, for example, you clicked the link of the application name or the Update or Test button on the Transaction Object page, you will find the following error displayed in the JBoss console or the JBoss server log file. This is a bug in JBoss AS 7.0.2 (for more, please see http://community.jboss.org/message/641888#641888). However, this error will not have any impact to Appeon Server, therefore, you can simply ignore it if you confirmed that this error occurs only after you operate on the AEM >Transactions > Transaction Objects page.
00:40:53,301 INFO [org.xnio.nio] (pool-4-thread-1) XNIO NIO Implementation Version 3.0.0.Beta3 00:40:55,219 ERROR [org.jboss.remoting.remote] (XNIO NIO Read 1) JBREM00200: Remote connection failed: java.io.IOException: Message data for non-existent channel 00:41:06,290 ERROR [org.jboss.remoting.remote] (XNIO NIO Read 5) JBREM00200: Remote connection failed: java.io.IOException: Window open for non-existent channel 00:41:06,606 ERROR [org.jboss.remoting.remote] (XNIO NIO Read 6) JBREM00200: Remote connection failed: java.io.IOException: Window open for non-existent channel 00:41:17,287 ERROR [org.jboss.remoting.remote] (XNIO NIO Read 8) JBREM00200: Remote connection failed: java.io.IOException: Window open for non-existent channel