Shibboleth IdP 3.3.2 Uncaught runtime exception

[Miller, Greg]

This is my first time posting to this list, although I've been a longtime member. Unfortunately, this time, I'm stumped.

In the past two days, we started seeing the following ERROR in our idp-process logs. During the time that this error is occurring, Jetty is unresponsive. Jetty will sometimes recover without a restart and sometimes not. Does anyone have any suggestions on how to begin debugging something like this?

Environment is Shibboleth IdP 3.3.2, Jetty 9.3.20, RHEL7

Thanks in advance for any help,

Greg Miller
Manager of Network Services
University of Richmond
gmiller at richmond.edu<mailto:gmiller at richmond.edu>
(804) 289-8546

2018-10-30 10:43:19,689 - ERROR [net.shibboleth.idp.saml.profile:-1] - Uncaught runtime exception
org.springframework.binding.expression.EvaluationException: An ELException occurred getting the value for expression 'opensamlProfileRequestContext.getSubcontext(T(net.shibboleth.idp.profile.context.SpringRequestContext), true).setRequestContext(flowRequestContext)' on context [class org.springframework.webflow.engine.impl.RequestControlContextImpl]
        at org.springframework.binding.expression.spel.SpringELExpression.getValue(SpringELExpression.java:92)
Caused by: org.springframework.expression.spel.SpelEvaluationException: EL1011E:(pos 30): Method call: Attempted to call method getSubcontext(java.lang.Class,java.lang.Boolean) on null context object
        at org.springframework.expression.spel.ast.MethodReference.throwIfNotNullSafe(MethodReference.java:144)

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