In the Stylepad and Notepad swing examples, with swing-0.5.1 and JDK1.2P2, the tool toolbar/palette section of the top menubar separates from the menubar after an action such as coloring selected text. Further user actions cause it to iconify, or attach itself to the right side of the window.

Steps to Reproduce
0) Set all corrects paths and system variables.
1) Recompile the Stylepad demo (the win32.mak file did not work for me even with adjustments. I just typed "javac *.java" and that worked.)
2) Run using the runnit file.
3) Scroll down using the right scrollbar to the first paragraph of text that starts with "The Caterpillar and Alice...".
4) Highlight the paragraph with the mouse and cursor.
5) Select the menuitem "Blue" to color the text blue.
6) Then choose "Red". Keep choosing different colors.
RESULT: Eventually the tool section of the toolbar on the top of the window will separate out into a floating palette. If you keep editing, it will iconify.

This occurs on Windows NT, Windows 95 with 256 colors. I was not able to reproduce this (yet) on Solaris. On Windows NT, an error message appears in the console window each time a color menu item is selected that says "Muliple enters".