At high level, Atmosphere is a module (based on open source project - see https://github.com/Atmosphere/atmosphere and repackaged by Pega) handling real time notification introduced in 7.2.2 (class in the error stack is from pratmosphere-runtime-126.96.36.199.jar). Suggest create a SR for further investigation, looks like there is some issue between atmosphere running in WAS 8.5+
We compared their instances and found that the setting for "Enable servlet and command caching" (from Webspehere Console > Container Management) was enabled for the instances where this "ClassCastException" was noticed in the logs. Customer is not sure why this was enabled, not mentioned in the PRPC installation document.
Posted: 5 years ago
Posted: 21 Apr 2017 9:40 EDT
Kevin Zheng (KevinZheng_GCS)
Director, Technical Support