| Class | Description | 
                            | AbstractTypeConvertingMap | An category for use with maps that want type conversion capabilities | 
                            | CacheEntry | Wrapper for a value inside a cache that adds timestamp information
 for expiration and prevents "cache storms" with a Lock. | 
                            | ClosureToMapPopulator | A simple class that takes method invocations and property setters and populates
 the arguments of these into the supplied map ignoring null values. | 
                            | DomainBuilder |  | 
                            | DomainBuilder.DefaultGrailsChildPropertySetter |  | 
                            | ExtendedProxy | Extends the Groovy Proxy implementation and adds proxying of property getters/setters. | 
                            | GrailsArrayUtils | Utility methods for working with Arrays | 
                            | GrailsClassUtils | Utility methods for dealing with Grails class artifacts. | 
                            | GrailsMetaClassUtils | Provides utility methods for working with the Groovy MetaClass API. | 
                            | GrailsStringUtils | Extra methods for string manipulation | 
                            | GrailsUtil | Grails utility methods for command line and GUI applications. | 
                            | Holders | Allows looking up key classes in a static context | 
                            | Pair |  | 
                            | Triple |  | 
                            | TypeConvertingMap | A category for use with maps that want type conversion capabilities. |