[ https://issues.jboss.org/browse/RF-13548?page=com.atlassian.jira.plugin.s... ] Juraj Húska commented on RF-13548: ---------------------------------- Showcase and Metamer can not be deployed to Tomcat 8, that is what I have noticed. I can not find the root cause of the problem, since there is no meaningful error logged to Tomcat log files (_catalina.out_, _localhost.log_) - I have also tried to increase logging level in apache-tomcat-8.0.3/conf/logging.properties. But still there is only: {code} 19-Feb-2014 10:19:00.168 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.startInternal Error listenerStart 19-Feb-2014 10:19:00.177 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.startInternal Context [/richfaces-showcase-tomcat6] startup failed due to previous errors {code} Which says basically nothing. The behavior is slightly different (have no clue why) when I am trying to deploy showcase via Arquillian test to Tomcat 8. Error described in [this|https://community.jboss.org/thread/236951] thread is thrown. You said that it is related to guava, but IMHO it is related to something else because: * Tomcat 8 does not bundle guava.jar and does not contain classes from that library. I have used: {code} find -name "*.java" -exec grep "import com.google.common" {} \; | sort | uniq -c find -name "*.java" -exec grep "ListeningExecutorService" {} \; | sort | uniq -c {code} over Tomcat 8 sources with no results. * I have tried to deploy showcase with various guava libraries bundled (16, 15, 13), but still the same error. Should I file another issue specifically for Showcase deployment ? -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira