jboss启动发生以下异常是为什么呢?
08:56:45,015   INFO     [Server]   Starting   JBoss   (MX   MicroKernel)...
08:56:45,015   INFO     [Server]   Release   ID:   JBoss   [Zion]   4.0.2   (build:   CVSTag=JBoss_4_0_2   date=200505022023)
08:56:45,015   INFO     [Server]   Home   Dir:   E:\jboss-4.0.2
08:56:45,015   INFO     [Server]   Home   URL:   file:/E:/jboss-4.0.2/
08:56:45,015   INFO     [Server]   Library   URL:   file:/E:/jboss-4.0.2/lib/
08:56:45,015   INFO     [Server]   Patch   URL:   null
08:56:45,015   INFO     [Server]   Server   Name:   default
08:56:45,015   INFO     [Server]   Server   Home   Dir:   E:\jboss-4.0.2\server\default
08:56:45,015   INFO     [Server]   Server   Home   URL:   file:/E:/jboss-4.0.2/server/default/
08:56:45,015   INFO     [Server]   Server   Data   Dir:   E:\jboss-4.0.2\server\default\data
08:56:45,015   INFO     [Server]   Server   Temp   Dir:   E:\jboss-4.0.2\server\default\tmp
08:56:45,015   INFO     [Server]   Server   Config   URL:   file:/E:/jboss-4.0.2/server/default/conf/
08:56:45,015   INFO     [Server]   Server   Library   URL:   file:/E:/jboss-4.0.2/server/default/lib/
08:56:45,015   INFO     [Server]   Root   Deployment   Filename:   jboss-service.xml
08:56:45,015   INFO     [Server]   Starting   General   Purpose   Architecture   (GPA)...
08:56:45,312   INFO     [ServerInfo]   Java   version:   1.6.0_01,Sun   Microsystems   Inc.
08:56:45,312   INFO     [ServerInfo]   Java   VM:   Java   HotSpot(TM)   Client   VM   1.6.0_01-b06,Sun   Microsystems   Inc.
08:56:45,312   INFO     [ServerInfo]   OS-System:   Windows   XP   5.1,x86
08:56:45,750   INFO     [Server]   Core   system   initialized
08:56:47,093   INFO     [Log4jService$URLWatchTimerTask]   Configuring   from   URL:   resource:log4j.xml
08:56:47,171   INFO     [WebService]   Using   RMI   server   codebase:   http://USER-CE6B996370:8083/
08:56:47,312   ERROR   [NamingService]   Starting   failed   jboss:service=Naming
java.rmi.server.ExportException:   Port   already   in   use:   1098;   nested   exception   is:  
java.net.BindException:   Address   already   in   use:   JVM_Bind
at   sun.rmi.transport.tcp.TCPTransport.listen(TCPTransport.java:310)
at   sun.rmi.transport.tcp.TCPTransport.exportObject(TCPTransport.java:218)
at   sun.rmi.transport.tcp.TCPEndpoint.exportObject(TCPEndpoint.java:393)
at   sun.rmi.transport.LiveRef.exportObject(LiveRef.java:129)
at   sun.rmi.server.UnicastServerRef.exportObject(UnicastServerRef.java:190)
at   java.rmi.server.UnicastRemoteObject.exportObject(UnicastRemoteObject.java:293)
at   java.rmi.server.UnicastRemoteObject.exportObject(UnicastRemoteObject.java:256)
at   org.jnp.serve