How to open a document located on a WebDAV server from a Java applet on MAC OS X?

I need to open a document for editing with associated application on MAC OS X from Java applet. The document is located on a WebDAV 开发者_运维问答server.

What command should I use to open a document? Is it necessary to mount a volume first?

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I need to open a document for editing with associated application..

Desktop.getDesktop().edit(File)