InstantiationException in CrowdSecurityFilter while apache server starts

[Johnson]

SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.filterStart Exception starting filter CrowdSecurityFilter
java.lang.InstantiationException: com.atlassian.crowd.integration.http.filter.CrowdSecurityFilter
at java.lang.Class.newInstance(Unknown Source)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:151)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258)

[Ann Worley]

I understand you are seeing an error in the log when Tomcat starts. Is there any issue with the performance of the instance or is it a case of proactively checking the logs?

Please see the first point Chris Fuller makes on Exception starting filter CrowdSecurityFilter. Have you made changes to the Tomcat web.xml file?