title: JDK and JRE minimal versions required for GWT (compiling and running)
body: <p>What is <strong>JDK minimal version</strong> is required for <strong>compiling GWT client code</strong> (I think JDK 1.7 for GWT 2.7) ?</p>
  
  <p>What is <strong>JRE minimal version</strong> is required for <strong>running GWT RPC on servlet container</strong> (I think JRE 1.5 for GWT 2.7) ?</p>
  
  <p>The only answer I found is GWT FAQ is <a href="http://www.gwtproject.org/doc/latest/FAQ_GettingStarted.html#What_are_the_system_requirements_for_GWT?" rel="nofollow">JRE 1.5</a> but for compiling or running ? It is not clear for me.</p>
  
  <p>In fact, I want to know what the <strong>JDK required for a developer computer</strong> and what the <strong>JRE required for a production server</strong>.</p>