| CharArrayReader | This class implements a character buffer that can be used as a character-input stream. | code | html |
| CharArrayWriter | Unsynced version of the JDK's CharArrayWriter | code | html |
| ClassLoaderUtil | This class is extremely useful for loading resources and classes in a fault tolerant manner that works across different applications servers. | code | html |
| Container | Utility for determining the Servlet Container the application is running in. | code | html |
| FastByteArrayOutputStream | A speedy implementation of ByteArrayOutputStream. | code | html |
| OutputConverter | A converter from one character type to another
This class is not threadsafe |
code | html |
| OutputConverter.ResinWriter | To get internationalised characters to work on Resin, some conversions need to take place. | code | html |