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

Specifically with Swing JTextComponents, sometimes after primary clipboard text transfer (with middle-mouse button), the clipboard contents are not always cleared or updated. Here are some specific cases and/or issues:

Note: These cases will refer to the sample test case attached, "ClipboardStringTestSwing.java". This Swing application has 2 JTextFields and 2 JTextAreas. At Launch, the text "Hello World!" is placed in JTextField1:

Case 1:
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Select "Hello" from TextField1, click middle-mouse button in TextField2. The text is transfered as expected, but the text "Hello" is deselected from the TextField1 (source) and now selected in TextField2 (target).

This seems to be a bug, as other X11 applications will not deselect the source text (AWT TextComponents do not deselect the source text either).

Case 2:
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Sometimes a new text selection is not updated to the primary clipboard. To reproduce this:
1) Click left mouse-button in TextField1 to go into insert mode.
2) Select text "Hello" in TextField1,
3) Click the middle-mouse-button in TextField2 and the text should transfer as expected.
4) Select text "World" in TextField1
5) Click middle-mouse-button in TextField2. The text "Hello" will be transfered instead of "World".

Case 3:
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If there is no text selected, clicking the middle-mouse button will transfer whatever was last in the primary clipboard.

1) Click left mouse-button in TextField1 to go into insert mode.
2) Select text "Hello" in TextField1,
3) Click the middle-mouse-button in TextField2 and the text should transfer as expected.
4) Click left mouse-button in textField1 to deselect your previous selection (nothing should be selected at this point).
5) Click middle-mouse-button in TextField2. The text "Hello" will be transfered instead of null.

- For all the above cases, these problems do not occur when using AWT TextComponents.

- Tested this with Solaris 2.7 and 1.4beta-B56.