| DownloadService2.ResourceSpec | 
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| DownloadServiceListener | 
 The DownloadServiceListener provides an interface for a
 callback object implementation, which may be used by a DownloadService
 implementation. 
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| FileContents | 
 FileContents objects encapsulate the name
 and contents of a file. 
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| JNLPRandomAccessFile | 
 Instances of this class support both reading and writing to a
 random access file. 
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| ServiceManagerStub | 
 A ServiceManagerStub object implements the particular
 lookup of JNLP services by the JNLP Client. 
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| SingleInstanceListener | 
 SingleInstanceListener is a interface which should be
 implemented by a JNLP application if they wish to support
 single instance behaviour. 
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| UnavailableServiceException | 
 The UnavailableServiceException is thrown by the
  ServiceManager when a non-existing or unavailable service
  is looked up. 
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