Using a SIP application migrated from WebSphere 7.0 or below to WebSphere 7 With CEA feature pack or WebSphere 8.0 and above may result in an exception
Calling javax.servlet.sip.URI.clone() may result in an java.lang.IllegalAccessError
As a result of an Oracle Security-in-Depth Fix,
SIP applications that were compiled against WebSphere 7, or SIP Servlets 1.0 interfaces (older standard) and are used with newer WebSphere versions WebSphere 7.0 with CEA feature pack or WebSphere 8.0 and above, may throw an java.lang.IllegalAccessError while calling the javax.servlet.sip.URI.clone() function.
Resolving The Problem
The solution for this issue is to compile the application again with the Sip interface from the newer version with a minimum version of WebSphere 7.0 with CEA feature pack or WebSphere 8.0 and above
15 June 2018