title: Is java Jersey 2.1 client thread safe?
body: <p><a href="http://repo1.maven.org/maven2/org/glassfish/jersey/jersey-documentation/2.0/jersey-documentation-2.0-user-guide.pdf" rel="noreferrer">Documentation for jersey 2.0 says</a>:</p>
  
  <blockquote>
    <p>Client instances are expensive resources. It is recommended a
    configured instance is reused for the creation of Web resources. The
    creation of Web resources, the building of requests and receiving of
    responses are guaranteed to be thread safe. Thus a Client instance and
    WebResource instances may be shared between multiple threads</p>
  </blockquote>
  
  <p>Is client still thread-safe in version 2.1? I cannot find information about thread safety in <a href="http://repo1.maven.org/maven2/org/glassfish/jersey/jersey-documentation/2.1/jersey-documentation-2.1-user-guide.pdf" rel="noreferrer">docs for 2.1.</a></p>