With new PRIMARY clipboard support for AWT and Swing TextComponents, middle-mouse button operations are now supported for Solaris and Linux (X11 applications).

When using the middle-mouse button to transfer text from a standalone Swing (JTextField) application to standalone AWT (TextField) application, the following exception is thrown (in the Swing application):

java.io.UnsupportedEncodingException: COMPOUND_TEXT
        at sun.io.Converters.getConverterClass(Converters.java:117)
        at sun.io.Converters.newConverter(Converters.java:148)
        at sun.io.CharToByteConverter.getConverter(CharToByteConverter.java:67)
        at java.lang.StringCoding.encode(StringCoding.java:306)
        at java.lang.String.getBytes(String.java:558)
        at sun.awt.datatransfer.DataTransferer.translateTransferable(DataTransferer.java:738)
        at sun.awt.datatransfer.DataTransferer$5.run(DataTransferer.java:1580)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:154)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:437)
        at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:140)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:126)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:121)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)


Other Notes:

- There are no problems in transfering text with middle-mouse button (in other direction) from AWT standalone app to Swing standalone app.
- Transfering text from Swing application to other native app works fine (i.e Terminal Window).
- Tested this with Solaris 2.7 and 1.4beta-B56.

Steps to reproduce:
------------------
Attached 2 applications:
- ClipboardStringTestSwing.java
- ClipboardStringTestAWT.java

1) Compile and run the two applications, each in a seperate VM.
2) Select some text to transfer in JTextField of ClipboardStringTestSwing.java
3) Click the middle-mouse-button in the TextField of ClipboardStringTestAWT.java
4) The UnsupportedEncodingException should be thrown.