title: What's the difference between GroovyShell and GroovyScriptEngine?
body: <p>Specifically <a href="http://docs.groovy-lang.org/latest/html/api/groovy/util/GroovyScriptEngine.html" rel="nofollow">http://docs.groovy-lang.org/latest/html/api/groovy/util/GroovyScriptEngine.html</a> and <a href="http://docs.groovy-lang.org/latest/html/api/groovy/lang/GroovyShell.html" rel="nofollow">http://docs.groovy-lang.org/latest/html/api/groovy/lang/GroovyShell.html</a>. In what situations would you use one over another?</p>