Jay Kumar SenSharma [https://community.jboss.org/people/jaysensharma] commented on the document "Add a global valve in AS7 (7.2.x)" To view all comments on this document, visit: https://community.jboss.org/docs/DOC-47954#comment-11711 -------------------------------------------------- (JBossAS7.2) I created a own Valve as following and altered the "org.apache.catalina.valves.ErrorReportValve" class a little bit just to hide some of the server specific information (like jboss web version in case of any error):             <valve name="globalErrorValve" module="my.global.valve" class-name="org.apache.catalina.valves.ErrorReportValve"/> And created module as following: <?xml version="1.0" ?> <module xmlns="urn:jboss:module:1.1" name="my.global.valve">     <properties>         <property name="jboss.api" value="private"/>     </properties>     <resources>         <resource-root path="GlobalErrorReportValve.jar"/>     </resources>     <dependencies>         <module name="sun.jdk"/>         <module name="javax.servlet.api"/>         <module name="org.jboss.as.web"/>     </dependencies> </module> Still in case of any Error (4xx or 5xx httop Response errors)  JBoss uses the class which is present inside the class "org.apache.catalina.valves.ErrorReportValve" which is present inside the "$JBOSS_HOME/modules/system/layers/base/org/jboss/as/web/main/jbossweb-7.2.0.Final.jar"    Why ? --------------------------------------------------