Unsupported major.minor version 52.0 (unable to load class) [duplicate]

Question

When i run my project i am getting the following exception:

javax.servlet.ServletException: java.lang.UnsupportedClassVersionError: apache/commons/codec/UtilityUtil : Unsupported major.minor version 52.0 (unable to load class apache.commons.codec.UtilityUtil)

I have researched and found out that it happens if the version of java is different from runtime and compilation time.

I have followed these two posts and tried to figure out that i am using java 8 and runtime has 1.7.: Unsupported major.minor version 52.0 captive portal How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version

I have changed the compilation version to 1.7. But still the same problem exists. I dont know why.

Runtime version: 1.7.0_45 Compilation Version: 1.7.0_80.

Answer 1

This is a duplicate. The classes you are using are probably compiled with Java 1.8 and your jvm is 1.7. That also includes 3rd party jars