| Name | Description | Type | Package | Framework |
| AccessToken | This class represent an access token. | Class | com.codename1.io | CodeName One |
| Adler32 | Class | com.codename1.io.gzip | CodeName One | |
| BufferedInputStream | Based on the buffered input stream from the JDK with some minor tweaks to allow external classes to monitor stream status and progress. | Class | com.codename1.io | CodeName One |
| BufferedOutputStream | Based on the buffered output stream from the JDK with some minor tweaks to allow external classes to monitor stream status and progress. | Class | com.codename1.io | CodeName One |
| CachedData | Class | com.codename1.io.services | CodeName One | |
| CachedDataService | Simple service that allows downloading and caching data locally. | Class | com.codename1.io.services | CodeName One |
| CacheMap | A cache map is essentially a hashtable that indexes entries based on age and is limited to a fixed size. | Class | com.codename1.io | CodeName One |
| CharArrayReader | A specialized Reader for reading the contents of a char array. | Class | com.codename1.io | CodeName One |
| ConnectionRequest | This class represents a connection object in the form of a request response typically common for HTTP/HTTPS connections. | Class | com.codename1.io | CodeName One |
| Cookie | Class | com.codename1.io | CodeName One | |
| CRC32 | Class | com.codename1.io.gzip | CodeName One | |
| CSVParser | Class | com.codename1.io | CodeName One | |
| Deflate | Class | com.codename1.io.gzip | CodeName One | |
| Deflater | Class | com.codename1.io.gzip | CodeName One | |
| DeflaterOutputStream | Class | com.codename1.io.gzip | CodeName One | |
| Externalizable | Similar to the Java SE externalizable interface this interface allows an object to declare itself as externalizable for serialization. | Interface | com.codename1.io | CodeName One |
| FileSystemStorage | Unlike networking, the file system storage mostly tries to emulate java. | Class | com.codename1.io | CodeName One |
| FilterInputStream | Class | com.codename1.io.gzip | CodeName One | |
| FilterOutputStream | Class | com.codename1.io.gzip | CodeName One | |
| GZConnectionRequest | Class | com.codename1.io.gzip | CodeName One | |
| GZIPException | Class | com.codename1.io.gzip | CodeName One | |
| GZIPHeader | See Also:"http://www. | Class | com.codename1.io.gzip | CodeName One |
| GZIPInputStream | Class | com.codename1.io.gzip | CodeName One | |
| GZIPOutputStream | Class | com.codename1.io.gzip | CodeName One | |
| ImageDownloadService | Simplifies the process of implementing an image link for labels and lists by binding a request to a component. | Class | com.codename1.io.services | CodeName One |
| Inflater | Class | com.codename1.io.gzip | CodeName One | |
| InflaterInputStream | Class | com.codename1.io.gzip | CodeName One | |
| IOProgressListener | Interface | com.codename1.io | CodeName One | |
| JSONParseCallback | The event based parser allows parsing without creating an object tree by receiving callbacks to this class. | Interface | com.codename1.io | CodeName One |
| JSONParser | Fast and dirty parser for JSON content on the web, it essentially returns a Map object containing the object fields mapped to their values. | Class | com.codename1.io | CodeName One |
| JZlib | Class | com.codename1.io.gzip | CodeName One | |
| Log | Pluggable logging framework that allows a developer to log into storage using the file connector API. | Class | com.codename1.io | CodeName One |
| MultipartRequest | A multipart post request allows a developer to submit large binary data files to the server in a multipart mime post request. | Class | com.codename1.io | CodeName One |
| NetworkEvent | Event containing more meta data for network events which may be error events or an update for progress indication code. | Class | com.codename1.io | CodeName One |
| NetworkManager | Main entry point for managing the connection requests, this is essentially a threaded queue that makes sure to route all connections via the network thread | Class | com.codename1.io | CodeName One |
| Oauth2 | This is a utility class that allows Oauth2 authentication This utility uses the Codename One XHTML Component to display the authentication pages. | Class | com.codename1.io | CodeName One |
| Octal | Class | com.codename1.io.tar | CodeName One | |
| Preferences | Simple map like class to store application and Codename One preference Remove all preferences | Class | com.codename1.io | CodeName One |
| Properties | A Properties object is a Hashtable where the keys and values must be Strings. | Class | com.codename1.io | CodeName One |
| RSSService | Class | com.codename1.io.services | CodeName One | |
| Socket | Class | com.codename1.io | CodeName One | |
| Socket .StopListening | This interface can be invoked to stop listening on a server socketSkip navigation links | Interface | com.codename1.io.Socket | CodeName One |
| SocketConnection | Callback for establishment of a socket connection. | Class | com.codename1.io | CodeName One |
| Storage | Class | com.codename1.io | CodeName One | |
| TarConstants | Class | com.codename1.io.tar | CodeName One | |
| TarEntry | Class | com.codename1.io.tar | CodeName One | |
| TarHeader | Offset Size Field 0 100 File name | Class | com.codename1.io.tar | CodeName One |
| TarInputStream | Class | com.codename1.io.tar | CodeName One | |
| TarOutputStream | Class | com.codename1.io.tar | CodeName One | |
| TarUtils | Class | com.codename1.io.tar | CodeName One | |
| TwitterRESTService | Calls to the Twitter REST API can be performed via this class although currently support for authentication isn't implemented due to the transition to oAuth instead | Class | com.codename1.io.services | CodeName One |
| Util | Class | com.codename1.io | CodeName One | |
| WebServiceProxyCall | Class | com.codename1.io | CodeName One | |
| WebServiceProxyCall .WSDefinition | Class | com.codename1.io.WebServiceProxyCall | CodeName One | |
| ZStream | Class | com.codename1.io.gzip | CodeName One | |