[esb-issues] [JBoss JIRA] Work logged: (JBESB-1069) GDP deployer servlet not working

[ http://jira.jboss.com/jira/browse/JBESB-1069?page=worklog#action_12377989 ] Bruno Unna logged work on JBESB-1069: ------------------------------------- Time Spent: 2 hours Remaining Estimate: 0 minutes Time Spent: 2 hours When starting up JBoss AS an exception used to apper in the log: 17:54:36,291 ERROR [[/jbpm-console]] Servlet /jbpm-console threw load() exception java.lang.NoClassDefFoundError: org/apache/commons/fileupload/FileUploadException at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2357) at java.lang.Class.getConstructor0(Class.java:2671) at java.lang.Class.newInstance0(Class.java:321) at java.lang.Class.newInstance(Class.java:303) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1104) ... Even though the apache-commons upload utility library is clearly contained in the lib directory of the jbpm-console war file. It seems that the java.lang.NoClassDefFoundError thrown when starting up the AS is the cause of the process uploading problem. The upload servlet definition, in file ${JBOSSESB_HOME}/lib/jbpm.esb/jbpm-console.war/WEB-INF/web.xml , contains this lines: <!-- This is the GDP's deployer servlet --> <servlet> <servlet-name>GDP Deployer Servlet</servlet-name> <servlet-class>org.jbpm.web.ProcessUploadServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> The value '1' in element "load-on-startup" means this servlet must be loaded ASAP by the container. And I believe for some reason this happens before the classloader has access to the apache-commons upload utility class. I commented out the load-on-startup element, thus allowing the container to load the class whenever it deemed convenient, after which the problem went away (as well as the startup error). I haven't found as of now any secondary effects of my action, so I dare to believe it is an acceptable solution to the error. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira