javax.jnlp
インタフェース 
BasicService
ClipboardService
DownloadService
DownloadServiceListener
ExtendedService
ExtensionInstallerService
FileContents
FileOpenService
FileSaveService
JNLPRandomAccessFile
PersistenceService
PrintService
ServiceManagerStub
SingleInstanceListener
SingleInstanceService
クラス 
ServiceManager
例外 
UnavailableServiceException