Unable to drag and drop from more than one component(one after another) on Solaris and Linux platforms.

Compile and run the attached Java code.
* First expand the JTree. Drag n drop any node from JTree to JEditorPane besides it.
  Result : Successful data transfer.

* Drag any item in the list, and drop into same or another JEditorPane.
  Result : Nothing will happen.

This testcase is fine on Windows platform.