title: How does Eclipse compile classes with only a JRE?
body: <p>I need to batch a compilation with a special JRE which has been &quot;customized&quot;.</p>
  <p>Eclipse is able to compile the classes with this JRE, but I need to make a build script outside of Eclipse.</p>
  <p>What is the method used by Eclipse to generate the <code>.class</code> files without a JDK?</p>