Instead of manual downloads, use a dependency manager to automatically handle the JAR and its required transitive dependencies (like jersey-core ). Maven Dependency: Add this to your pom.xml :
: Visit the Maven Repository for jersey-client and click on the "jar" link next to Files . download com.sun.jersey.api.client.client jar
: Jersey Client 1.x requires the core library to function. You must also download the jersey-core jar. Add to Classpath : Instead of manual downloads, use a dependency manager