/**
* Gets most recent focus owner component associated with the given window. It does that without
* calling Window.getMostRecentFocusOwner since it provides its own logic contradicting with
* setDefautlFocus. Instead, it calls KeyboardFocusManager directly.
*/
private Component getMostRecentFocusOwnerForWindow(Window w) {
Method meth =
AccessController.doPrivileged(
new PrivilegedAction<Method>() {
@Override
public Method run() {
Method meth = null;
try {
meth =
KeyboardFocusManager.class.getDeclaredMethod(
"getMostRecentFocusOwner", new Class<?>[] {Window.class});
meth.setAccessible(true);
} catch (Exception e) {
// Must never happen
e.printStackTrace();
}
return meth;
}
});
if (meth != null) {
// Meth refers static method
try {
return (Component) meth.invoke(null, new Object[] {w});
} catch (Exception e) {
// Must never happen
e.printStackTrace();
}
}
// Will get here if exception was thrown or meth is null
return w.getMostRecentFocusOwner();
}
