Found the following error in the Endevor V19 WSTOMSTC log:
SEVERE: Servlet ÝAxisServlet¨ in web application Ý/EndevorService¨ threw load() exception
java.lang.ClassCastException: org.apache.axis2.transport.http.AxisServlet incompatible with jakarta.servlet.Servlet
Endevor V19
EndevorService.war file is outdated (possibly using the V18.1 EndevorService.war), since axis2 is replaced by cxf framework in Endevor V19, so there should be no reference to axis2 at runtime.
Set
CLEAN_ENDEVOR_TOMCAT_INSTANCE=Y
ACTION="INSTALL"
in WSTOMINS, and rerun the WSTOMINS to reinstall Endevor web service using V19 EndevorService.war.