Exception in thread “main” java.lang.NoClassDefFoundError: Could not initialize class com.sun.jersey.core.header.MediaTypes

Question

I\'m trying to run a jersey client and facing this issue.

WS Class:

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
im         


        

Answer 1

For followers, these (with mockito in this instance, but kind of generic):

java.lang.NoClassDefFoundError: com/sun/jersey/spi/inject/Errors$Closure

java.lang.NoClassDefFoundError: com/sun/jersey/core/header/LinkHeaders

meant "you have a dependency on jersey-core 1.0.2 and also dependency on jersey-client 1.11" (need to match core with client versions more closely). Unfortunately "server" and "client" both use the "core" so in the end they practically all have to precisely match up :|