| Class | Description | 
                            | GroovyCompiledScript | Used to represent compiled Groovy scripts. | 
                            | GroovyScriptEngineFactory | A factory class conforming to JSR-223 which is used to instantiate
 Groovy ScriptEnginesand also exposes metadata describing
 Groovy's engine class. | 
                            | GroovyScriptEngineImpl | JSR-223 Engine implementation. | 
                            | ScriptExtensions | This class defines new Java 6 specific groovy methods which extend the normal
 JDK classes inside the Groovy environment. | 
                            | ScriptStaticExtensions | This class defines new Java 6 specific static groovy methods which extend the normal
 JDK classes inside the Groovy environment. |