| Class | Description | 
                            | AbstractFactory |  | 
                            | AllTestSuite | AllTestSuite can be used in extension of GroovyTestSuite to execute TestCases written in Groovy
 from inside a Java IDE. | 
                            | AntBuilder | Allows Ant tasks to
 be used with a Groovy builder-style markup. | 
                            | BuilderSupport | An abstract base class for creating arbitrary nested trees of objects or events | 
                            | CharsetToolkit | Utility class to guess the encoding of a given text file. | 
                            | CliBuilder | @deprecated use groovy.cli.picocli.CliBuilderor CliBuilder instead. | 
                            | ClosureComparator | A Comparator which uses a closure to compare 2 values being equal | 
                            | ConfigBinding | Since Groovy Script doesn't support overriding setProperty, we use a trick with the Binding to provide this
 functionality | 
                            | ConfigObject | A ConfigObject at a simple level is a Map that creates configuration entries (other ConfigObjects) when referencing them. | 
                            | ConfigSlurper | ConfigSlurper is a utility class for reading configuration files defined in the form of Groovy
 scripts. | 
                            | DelegatingScript | Script that performs method invocations and property access like Closure does. | 
                            | Eval | Allow easy integration from Groovy into Java through convenience methods. | 
                            | Expando | Represents a dynamically expandable bean. | 
                            | FactoryBuilderSupport | Mix of BuilderSupport and SwingBuilder's factory support. | 
                            | FileNameByRegexFinder | Find files according to a base directory and an includes and excludes pattern. | 
                            | FileNameFinder | Find files according to a base directory and an includes and excludes pattern. | 
                            | FileTreeBuilder | A builder dedicated at generating a file directory structure from a
 specification. | 
                            | GroovyAssert | @deprecated Use the GroovyAssert class instead | 
                            | GroovyCollections | A Collections utility class | 
                            | GroovyMBean | A GroovyObject facade for an underlying MBean which acts like a normal
 groovy object but which is actually implemented via
 an underlying JMX MBean. | 
                            | GroovyScriptEngine | Specific script engine able to reload modified scripts as well as dealing properly
 with dependent scripts. | 
                            | GroovyShellTestCase | Groovy test case, which recreates internal GroovyShell in each setUp() | 
                            | GroovyTestCase | A JUnit 3 TestCase base class in Groovy. | 
                            | GroovyTestSuite | A TestSuite which will run a Groovy unit test case inside any Java IDE
 either as a unit test case or as an application. | 
                            | IndentPrinter | A helper class for printing indented text. | 
                            | JavadocAssertionTestBuilder | JavadocAssertionTestBuilderwill dynamically create a test cases from Groovy assertions placed within
 the Javadoc comments of a source file. | 
                            | JavadocAssertionTestSuite | JavadocAssertionTestSuitewill dynamically create test cases from Groovy assertions placed within
 Javadoc comments. | 
                            | MapEntry | A Map.Entry implementation. | 
                            | Node | Represents an arbitrary tree node which can be used for structured metadata or any arbitrary XML-like tree. | 
                            | NodeBuilder | A helper class for creating nested trees of Node objects for 
 handling arbitrary data | 
                            | NodeList | A List implementation which is returned by queries on a Node
 which provides some XPath like helper methods for GPath. | 
                            | NodePrinter | A helper class for creating nested trees of data | 
                            | ObjectGraphBuilder | A builder for creating object graphs. | 
                            | ObjectGraphBuilder.DefaultChildPropertySetter | Default impl that calls parent.propertyName = child If parent.propertyName is a Collection it will try to add child to the
 collection.
 | 
                            | ObjectGraphBuilder.DefaultClassNameResolver | Default impl that capitalizes the classname. | 
                            | ObjectGraphBuilder.DefaultIdentifierResolver | Default impl, always returns 'id' | 
                            | ObjectGraphBuilder.DefaultNewInstanceResolver | Default impl that calls Class.newInstance() | 
                            | ObjectGraphBuilder.DefaultReferenceResolver | Default impl, always returns 'refId' | 
                            | ObjectGraphBuilder.DefaultRelationNameResolver | Default impl that returns parentName and childName accordingly. | 
                            | ObjectGraphBuilder.ReflectionClassNameResolver | Build objects using reflection to resolve class names. | 
                            | ObservableList | List decorator that will trigger PropertyChangeEvents when a value changes. | 
                            | ObservableList.ElementAddedEvent |  | 
                            | ObservableList.ElementClearedEvent |  | 
                            | ObservableList.ElementEvent |  | 
                            | ObservableList.ElementRemovedEvent |  | 
                            | ObservableList.ElementUpdatedEvent |  | 
                            | ObservableList.MultiElementAddedEvent |  | 
                            | ObservableList.MultiElementRemovedEvent |  | 
                            | ObservableList.ObservableIterator |  | 
                            | ObservableList.ObservableListIterator |  | 
                            | ObservableMap | Map decorator that will trigger PropertyChangeEvents when a value changes. | 
                            | ObservableMap.MultiPropertyEvent |  | 
                            | ObservableMap.PropertyAddedEvent |  | 
                            | ObservableMap.PropertyClearedEvent |  | 
                            | ObservableMap.PropertyEvent |  | 
                            | ObservableMap.PropertyRemovedEvent |  | 
                            | ObservableMap.PropertyUpdatedEvent |  | 
                            | ObservableSet | Set decorator that will trigger PropertyChangeEvents when a value changes. | 
                            | ObservableSet.ElementAddedEvent |  | 
                            | ObservableSet.ElementClearedEvent |  | 
                            | ObservableSet.ElementEvent |  | 
                            | ObservableSet.ElementRemovedEvent |  | 
                            | ObservableSet.MultiElementAddedEvent |  | 
                            | ObservableSet.MultiElementRemovedEvent |  | 
                            | ObservableSet.ObservableIterator |  | 
                            | OptionAccessor | @deprecated use groovy.cli.picocli.OptionAccessoror OptionAccessor | 
                            | OrderBy | A helper class for sorting objects via a closure to return the field
 or operation on which to sort. | 
                            | PermutationGenerator | Systematically generate permutations. | 
                            | Proxy | Dynamic groovy proxy for another object. | 
                            | ProxyGenerator | Classes to generate 'Proxy' objects which implement interfaces,
 maps of closures and/or extend classes/delegates. | 
                            | StringTestUtil |  | 
                            | XmlNodePrinter | Prints a groovy.util.Node(as used withXmlParser) including all children in XML format. | 
                            | XmlNodePrinter.NamespaceContext |  | 
                            | XmlParser | A helper class for parsing XML into a tree of Node instances for a
 simple way of processing XML. | 
                            | XmlSlurper | Parse XML into a document tree that may be traversed similar to XPath
 expressions. |