I am trying to deploy the kie-drools-wb on Tomcat7, but I keep getting these errors. SEVERE: Error listenerStart Jul 23, 2014 10:03:26 AM org.apache.catalina.core.StandardContext startInternal SEVERE: Context [/rule-mgnt-6.0.1] startup failed due to previous errors Jul 23, 2014 10:03:26 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/rule-mgnt-6.0.1] appears to have started a thread named [pool-4-thread-1] but has failed to stop it. This is very likely to create a memory leak. Jul 23, 2014 10:03:26 AM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks SEVERE: The web application [/rule-mgnt-6.0.1] created a ThreadLocal with key of type [org.jboss.solder.servlet.beanManager.ServletContextAttributeProvider$1] (value [org.jboss.solder.servlet.beanManager.ServletContextAttributeProvider$1@323acc6f]) and a value of type [org.apache.catalina.core.ApplicationContextFacade] (value [org.apache.catalina.core.ApplicationContextFacade@3243a52c]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak. Jul 23, 2014 10:03:26 AM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks SEVERE: The web application [/rule-mgnt-6.0.1] created a ThreadLocal with key of type [org.jboss.errai.config.util.ClassScanner$1] (value [org.jboss.errai.config.util.ClassScanner$1@7711057b]) and a value of type [java.lang.Boolean] (value [true]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak. I have follow the instructions provided from this link:http://drools.46999.n3.nabble.com/rules-users-Problems-deploying-war... 1. I have added these 3 jar files in my tomcat_home/lib directory a. javax.security.jacc-api-1.5.jar b. kie-tomcat-integration-6.1.0.CR2.jar c. slf4j-api-1.7.7.jar 2. Modified the server.xml in tomcat_home/conf directory by adding the line below in the <Host> tag <Valve className="org.kie.integration.tomcat.JACCValve" /> 3. Added the following in tomcat-users.xml <role rolename="admin"/> <role rolename="analyst"/> <role rolename="manager-gui"/> <role rolename="user"/> <user username="admin" password="dummy" roles="admin"/> <user username="tomcat" password="dummy2" roles="manager-gui"/> 4. Delete org.uberfire.security.auth.AuthenticationSource inside WEB-INF/classes/META-INF/services 5. Rename org.uberfire.security.auth.AuthenticationSource-TOMCAT-JEE-SECURITY to org.uberfire.security.auth.AuthenticationSource inside WEB-INF/classes/META-INF/services 6. Created a setenv.sh in tomcat_home/bin directory, which has this as it content export JAVA_OPTS="-Dfile.encoding=UTF-8 -Xms128m -Xmx1024m -XX:PermSize=64m -XX:MaxPermSize=256m" 7. Finally, uncomment the section in web.xml from the WAR file. I am using Tomcat 7.0.54 and running on 64 bit Linux server. I would appreciate any suggestions. Thank You, Chieu Nguyen Chieu.nguyen(a)verizon.com