![]() Private static String keyEventToString(KeyEvent keyEvent) Public static final Logger logger = Logger.getLogger(()) As you can see, the digits are queued properly but the tab presses get dropped. Then I typed 1 Tab 2 Tab 3 Tab 4 Tab 5 Tab 6 Tab 7 Tab 8 Tab 9 Tab 0. In the third example, I took out the custom focus calls and instead simply set the document update delay to 500ms. Update: Note that this behavior is not specific to progammatically changing focus. Actual behavior: focus does not change fast enough so they get multiple characters. Expected behavior: when you hold down a key, each JTextField will contain a single character. Related question that didn’t get much response: How to grab focus now? In writing integration tests using, I need its behavior to be deterministic and not timing-dependent. Motivation: I have a JTextField that automatically transfers focus when it’s full. Question: Is there any way to change focus synchronously in Swing? Is DefaultKeyboardFocusManager really trying to simulate synchronous focus, and is it seriously buggy? Is there a focus manager that does this correctly? But it appears that this isn’t working properly. As a workaround, it appears that DefaultKeyboardFocusManager is trying to simulate synchronously switching focus by delaying the dispatch of keyboard events until focus events have finished dispatching. When I call component.requestFocusInWindow(), Swing enqueues asynchronous FOCUS_GAINED and FOCUS_LOST events rather than synchronously transferring focus.
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