“NoClassDefFoundError: Could not initialize class” error

Question

When I run my project, I get numerous outputs of this error:

Sep 9, 2009 8:22:23 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service()         


        

Answer 1

Realised that I was using OpenJDK when I saw this error. Fixed it once I installed the Oracle JDK instead.