CODEWITHSUNDEEP
javatomcatintellij-ideanullpointerexceptioneditor
Hüseyin BABAL
Hüseyin BABAL

Reputation: 15550

Intellij Idea null pointer exception

I am getting following error in every 10 seconds at idea's output panel while tomcat server is running:

    Jul 1, 2013 9:38:35 AM org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor processChildren
SEVERE: Exception invoking periodic operation: 
java.lang.NullPointerException
    at org.apache.catalina.startup.HostConfig.filterAppPaths(HostConfig.java:527)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:500)
    at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1385)
    at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:306)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
    at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1389)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1653)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1662)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1642)
    at java.lang.Thread.run(Thread.java:662)

Is there anyone faced this problem before?

Thanks in advance

Upvotes: 0

Views: 3849

Answers (1)

Hüseyin BABAL
Hüseyin BABAL

Reputation: 15550

This problem is due to missing appBase directory in tomcat server.xml. In server.xml, 

<Host appBase="/path/to/valide/dir/webapps" autoDeploy="false" name="localhost" unpackWARs="true" xmlNamespaceAware="false" xmlValidation="false">

appBase attribute must be valid directory. It can be absolute path or relative path to CATALINA_HOME

There is an issue for this as @Stefan Beike specified above;

https://issues.apache.org/bugzilla/show_bug.cgi?id=51654

Also you can see documentation for Host config here

Upvotes: 1

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