The Tomcat in USS needs to use a 31bit Java runtime for the Endevor Web Services . The 64bit version is supported with ptf SO07606 andSO07605 applied:.
'SEVERE: Servlet /axis2 threw load() exception' message is one of the symptoms.
The Tomcat/axis2 in USS for the Endevor Web Service can use a 31-bit Java runtime and 64-bit runtime.
Release: ENDAE.00200-18.0-Endevor-Software Change Manager
The Tomcat/axis2 in USS for the Endevor Web Service needs to use a 31-bit or 64-bit Java runtime.
The version in use by Tomcat can be seen in its SYSOUT; for example this shows a correct 31 bit version:
IBM J9 VM (build 2.6, JRE 1.7.0 z/OS s390-31 20130617_152572 (JIT enabled, AOT enabled),
A 64 bit version would for example show this:
IBM J9 VM (build 2.6, JRE 1.6.0 z/OS s390x-64 20110418_80450 (JIT enabled, AOT enabled)
Ptf's SO07606 and SO07605 need to be applied for 64 bit support under 18.0.12