java.lang.NoClassDefFoundError: org/apache/commons/collections/Transformer

Question

I am receiving the following error java.lang.NoClassDefFoundError: org/apache/commons/collections/Transformer trying to use BeanMap from the Apache

Answer 1

commons-collections4-x.x.jar Add the library to your classpath and try to run again. It will work.

Download the library from: https://mvnrepository.com/artifact/org.apache.commons/commons-collections4/4.1