1. Set Tools->Options->Editor->Formatting->Line Wrap to "After words".
2. Have a line "List l = new ArrayList();"
3. Shrink window so that "ArrayList" appears on next line.
4. Start to select characters on the line. Once the characters from "ArrayList" start to be selected they first appear on the same line and once the end of window is reached then the whole identifier starts to appear on the next line.
Integrated into 'main-golden', will be available in build *201009030000* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
User: Miloslav Metelka <email@example.com>
Log: #189554 - Selection splits word for wrap-at-word-boundary line wrapping type.