When running VAPP as Service Provider (SP), once the browser accesses the VAPP SP side for SP initiated journey, the browser receives the message:
https://<domain>/iam/im/mysp/index.jsp
Exception during page display:
org.apache.jasper.JasperException: java.lang.NullPointerException
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:473)
Enabling the Identity Manager Authentication Framework on all nodes in the cluster will solve the issue.