Task will not start after IPL.  RSU1906 System maintenance applied on our z/OS 2.3 system.   only difference I see from the task that was working before IPL is the JAVA level.  Before IPL Task found:

JVMJZBL1012I Java Virtual Machine created. Version information follows: 

java version "1.8.0_191"                                                

After IPL:

.JVMJZBL1012I Java Virtual Machine created. Version information follows: 

.java version "1.8.0_211"                                                

Webviewer shuts down after this message:

 org.apache.catalina.core.AprLifecycleListener init                                                         

INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the j

va.library.path: ......... 

org.apache.coyote.http11.Http11Protocol init                                                               

INFO: Initializing Coyote HTTP/1.1 on http-8095                                                                                    

May also see in the Tomcat log:

SEVERE [main] org.apache.catalina.startup.Catalina.stopServer Could not contact localhost:8005. Tomcat may not be running.

SEVERE [main] org.apache.catalina.startup.Catalina.stopServer Catalina.stop: 

 java.net.ConnectException: Connection refused: connect

Release :  12.1

Component : OUTPUT MANAGEMENT WEB VIEWER FOR ALL PLATFORMS

WBVLUW

Go to the server.xml file

change: 

--><Server port="8005" shutdown="SHUTDOWN"> 

to 

--><Server port="-1" shutdown="SHUTDOWN"> 


After you change the port to -1, restart Tomcat and it should start.