When I input url of tomcat server , it show those code.
Why?
[INFO,Default] JBoss-2.4.4 Started in 0m:6s.157
[INFO,EmbeddedCatalinaServiceSX] StandardHost[localhost]: MAPPING configuration
error for request URI
[ERROR,EmbeddedCatalinaServiceSX] HttpProcessor[8080][4] process.invoke
java.lang.NullPointerException
at org.apache.catalina.valves.ErrorDispatcherValve.status(ErrorDispatche
rValve.java:280)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatche
rValve.java:180)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
.java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:163)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline
.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcesso
r.java:1011)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.ja
va:1106)
at java.lang.Thread.run(Thread.java:484)
