apache tomcat启动问题，跟大家探讨一下！

我在通过eclipse启动tomcat6.0的时候，经常会遇到一个问题。
有时启动的时候，控制台如下：
2012-1-17 10:48:20 org.apache.tomcat.util.digester.SetPropertiesRule begin
警告: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.j2ee.server:hangame-casual' did not find a matching property.
2012-1-17 10:48:20 org.apache.catalina.core.AprLifecycleListener init
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:\MyLucy\java\jdk1.6.0_18\bin;.;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;D:\MyLucy\java\jdk1.6.0_18\jre\bin;D:\oracle\product\10.2.0\db_1\bin;D:\MyLucy\Java\jdk1.5.0_06\bin;C:\Program Files\NVIDIA Corporation\PhysX\Common;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\Common Files\Thunder Network\KanKan\Codecs;C:\Program Files\MySQL\MySQL Server 5.0\bin;C:\Program Files\TortoiseSVN\bin
2012-1-17 10:48:20 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2012-1-17 10:48:20 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 306 ms
然后就没了，server显示启动完了，实际上是没有正常启动的。

然后删除server或者重启eclipse又或者重新添加project以后，服务可以正常启动。

上网搜索N久未果，特此寻求大家帮助！