Response.sendError throws IllegalStateException

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Issue

A call to response.sendError throws the following exception for some requests:

java.lang.IllegalStateException
        at org.apache.catalina.connector.ResponseFacade.sendError(ResponseFacade.java:406) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]

Environment

JBoss Enterprise Application Platform (EAP)

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