Hi Team,

we upgrade our tomcat as daily update process, previously we are using tomcat 8.5.5 and now updated to 8.5.13, we found that after updating tomcat to 8.5.13 our drools rule are not working and attached the exception for your reference.
We analyse the issue and found that ecj.jar is causing the issue, please let me know if there is any dependency with ECJ.jar, we are using 3.12.1.v20160829-0950 and it is bundled with tomcat 8.5.13.

Please let me know if you have any workaround for this issue.