Hello everyone,
after a few tries I luckily can use now Java Curses Library under Windows 7 (of course only in 32-bit mode as the DLL is only 32-bit) and under Ubuntu 10.04.3 (also of course only in 32-bit as the SO is only 32-bit). I noticed that the version 0.9.5 uses normal characters for drawing window borders, scrollpane borders and so on. Other ncurses programs like Yast or the Ubuntu installer are using block ASCII.
How can I switch from normal characters to block ASCII?