I wrote a Java application that copies a string to the system clipboard. The constructor uses

Clipboard.setContents(Transferable contents, ClipboardOwner owner)

http://docs.oracle.com/javase/6/docs/api/java/awt/datatransfer/Clipboard.html

I got it working fine but I am not sure what the ClipboardOwner does? Looking at the Java api does not really tell much info.

http://docs.oracle.com/javase/6/docs/api/java/awt/datatransfer/ClipboardOwner.html

Oddly enough even passing a ClippboardOwner = null works. So I'm not exactly sure what the point of it is? Does anyone have any idea?

java clipboard
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