Starting tomcat manually on the cli gave no error:
[root@scotty tomcat]# tomcat start
[root@scotty tomcat]# pwd
/var/log/tomcat
[root@scotty tomcat]#
Manual start leeds to the same error entries in the log (see above).
In the localhost.log is this entry:
04-May-2021 14:13:00.284 SEVERE [main] org.apache.catalina.core.StandardContext.listenerStart Exception sending context initialized event to listener instance of class [org.candlepin.guice.CandlepinContextListener]
java.lang.NoSuchFieldError: SERVER_SENT_EVENTS_TYPE
After the tomcat is started, this message repeatedly every minute:
May 04 14:47:05 scotty.home.petersen20.de server[671974]: Exception in thread "Thread-57 (ActiveMQ-server-org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl$6@2a505beb)" java.lang.NoClassDefFoundError: ch/qos/logback/classic/spi/ThrowableProxy
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at ch.qos.logback.classic.spi.LoggingEvent.<init>(LoggingEvent.java:119)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:419)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:383)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at ch.qos.logback.classic.Logger.log(Logger.java:765)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at jdk.internal.reflect.GeneratedMethodAccessor52.invoke(Unknown Source)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at java.base/java.lang.reflect.Method.invoke(Method.java:566)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at org.jboss.logging.Slf4jLocationAwareLogger.doLog(Slf4jLocationAwareLogger.java:89)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at org.jboss.logging.Slf4jLocationAwareLogger.doLog(Slf4jLocationAwareLogger.java:75)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at org.jboss.logging.Logger.warn(Logger.java:1236)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at org.apache.activemq.artemis.utils.actors.OrderedExecutor.doTask(OrderedExecutor.java:47)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at org.apache.activemq.artemis.utils.actors.OrderedExecutor.doTask(OrderedExecutor.java:31)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at org.apache.activemq.artemis.utils.actors.ProcessorBase.executePendingTasks(ProcessorBase.java:65)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
May 04 14:47:05 scotty.home.petersen20.de server[671974]: at org.apache.activemq.artemis.utils.ActiveMQThreadFactory$1.run(ActiveMQThreadFactory.java:118)