4.0.0 org.apache.skywalking apm-sdk-plugin 8.4.0.4 apm-httpClient-4.x-plugin jar httpclient-4.x-plugin http://maven.apache.org UTF-8 4.3 4.12 org.apache.httpcomponents httpclient ${apache-httpclient.version} provided org.apache.skywalking apm-httpclient-commons ${project.version} provided junit junit ${junit.version} test