java - liferay on tomcat don't load a class -



java - liferay on tomcat don't load a class -

i'm making portlet on liferay deployed on jboss. today changed library , starts happens problem. when deploy portlet have restart liferay otherwise have exception:

17:09:36,325 error [dispatcherportlet:554] not finish request java.lang.nullpointerexception @ org.apache.catalina.loader.webappclassloader.findresources(webappclassloader.java:1245) @ java.lang.classloader.getresources(classloader.java:1041) @ org.apache.commons.logging.logfactory$4.run(logfactory.java:1317) @ java.security.accesscontroller.doprivileged(native method) @ org.apache.commons.logging.logfactory.getresources(logfactory.java:1336) @ org.apache.commons.logging.logfactory.getconfigurationfile(logfactory.java:1398) @ org.apache.commons.logging.logfactory.getfactory(logfactory.java:417) @ org.apache.commons.logging.logfactory.getlog(logfactory.java:645) @ org.springframework.security.portlet.portletauthenticationdetails.(portletauthenticationdetails.java:14)

this morning had similar problem when tried utilize logger of log4j...and problem mutual log...someone can help me?

i think met bug in tomcat. because should not throw runtimeexception nullpointerexception. how deal it? read source code of tomcat @ line 1245...

java tomcat logging liferay

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