tomcat5.5.23 运行中报java.net.BindException: Address already in use:8080
系统现状：
OS: AS4
tomcat: 5.5.23
jdk 1.5.
apache: 2.2.2
mysql: 5.0
采用mod_jk整合
问题描述：
系统运行一段时间后，大概是４到５个小时，在tomcat下发布的某个工程访问出现空白页面，而其他的工程都是正常的，restart tomcat后，就恢复正常，系统（catalina.out）有时报以下错误，同时还有ＮｕｌｌｐｏｉｎｔＥｘｃｅｐｔｉｏｎ，关于程序的问题已经全部梳理，程序中的异常都被监听程序捕捉。
问题目前在观察中，是否有ｔｘｊｍ遇到，望告知！ 谢谢！
严重: Error initializing endpoint
java.net.BindException: Address already in use:8080
at org.apache.tomcat.util.net.PoolTcpEndpoint.initEndpoint(PoolTcpEndpoint.java:298 )
at org.apache.coyote.http11.Http11BaseProtocol.init(Http11BaseProtocol.java:139 )
at org.apache.catalina.connector.Connector.initialize(Connector.java:1017 )
at org.apache.catalina.core.StandardService.initialize(StandardService.java:578 )
at org.apache.catalina.core.StandardServer.initialize(StandardServer.java:782 )
at org.apache.catalina.startup.Catalina.load(Catalina.java:504)
at org.apache.catalina.startup.Catalina.load(Catalina.java:524)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39 )
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25 )
at java.lang.reflect.Method.invoke(Method.java:585 )
at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:267 )
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432 )
2007-7-14 9:47:59 org.apache.catalina.startup.Catalina load
严重: Catalina.start
LifecycleException: Protocol handler initialization failed: java.net.BindException: Address already in use:8080
at org.apache.catalina.connector.Connector.initialize(Connector.java:1019 )
at org.apache.catalina.core.StandardService.initialize(StandardService.java:578 )
at org.apache.catalina.core.StandardServer.initialize(StandardServer.java:782 )
at org.apache.catalina.startup.Catalina.load(Catalina.java:504 )
at org.apache.catalina.startup.Catalina.load(Catalina.java:524 )
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method )
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java: 39 )
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25 )
at java.lang.reflect.Method.invoke(Method.java:585 )
at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:267 )
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432 )
