大名鼎鼎的java动态脚本语言。已经通过了sun的认证

				import java.io.*				import java.util.Map				import java.util.List								class ImportTest extends GroovyTestCase {								    void testImportAll() {				        def file = new File("foo.txt")				        assert file instanceof File				        assert file.getClass().name == "java.io.File"				    }				    				    void testImportByName() {				        def x = [:]				        assert x instanceof Map				        /**				         * For maps, map.getClass() should be used instead of map.class,				         * when map has no member, named as "class"				         */				        assert x.getClass() != null				        assert x.getClass().name.startsWith("java.util.")				        				        def y = [1, 2, 3]				        assert y instanceof List				        assert y.getClass().name.startsWith("java.util.")				    }				}