#5316·Activiti

activiti-juel-jakarta-8.8.0.jar override jakarta.el.ExpressionFactory causing JSP to fail on Tomcat 10

Author: ssjongCreated Feb 26, 2026Updated Apr 17, 2026

activiti-juel-jakarta has a "META-INF/services/jakarta.el.ExpressionFactory" entry that override ExpressionFactory, when this is run under Tomcat 10, jsp with taglib will fails with strange NPE error, removing META-INF/services/jakarta.el.ExpressionFactory from activiti-juel-jakarta solved this issue.

Is this "META-INF/services/jakarta.el.ExpressionFactory" entry in activiti-juel-jakarta a bug? or simply a case of me not configuring the various jar/lib properly?