Java 9 HttpClient java.lang.NoClassDefFoundError: jdk/incubator/http/HttpClient

Question

I am trying to use the HttpClient from incubator in Java 9 maven project. I am not getting any Compilation issue. The project builds successfully. But when I try to run the

Answer 1

If the accepted answer still did not work for you then..

The missing secret is to also include the maven-surefire-plugin with the same compiler arg.

        
            
                org.apache.maven.plugins
                maven-compiler-plugin
                3.7.0
                
                    10
                    10
                    --add-modules=jdk.incubator.httpclient
                
            
            
                org.apache.maven.plugins
                maven-surefire-plugin
                2.21.0
                
                    --add-modules=jdk.incubator.httpclient