swing - How to create a common static focusable window in Java? -

i creating transliterating tool in java. it's complete. here screenshot.

i using jwindow dropdown, which must focusable reason. as, user can write in 1 input @ 1 time. i've created window static, text components use same instance instead of creating new one.

problem occurs, when work in more 1 window. works fine unless both window showing on screen. when owner window of dropdown window closed, dropdown window not focusable anymore.

as javadoc of jwindow(window owner) constructor says:

creates window specified owner window. window not focusable unless owner showing on screen. if owner null, shared owner used , window not focusable.

so, how can create static, focusable window, shared components in different windows.

don't use jwindow.

instead can use non decorated jdialog. won't have focus problem.

edit:

you can prevent dialog getting focus when make visible using code like:

dialog.setwindowfocusablestate(false); dialog.setvisible(true); dialog.setwindowfocusablestate(true);