Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]

Question

I am developing an application with Hibernate and I get an Exception when I connect with database. The exception is:

Unable to instantiate default tuplizer [         


        

Answer 1

According to the stack trace:

Caused by: java.lang.NoClassDefFoundError: javassist/util/proxy/ProxyObject at     java.lang.ClassLoader.defineClass1(Native Method)

The issue is caused by "java.lang.NoClassDefFoundError", so I think you should focus on this.

The direct solution is to add dependency

    javassist
    javassist
    3.12.1.GA

to your pom.xml.