public void assertIsDispatchThread(@Nullable final JComponent component) {
if (component == null) return;
Thread curThread = Thread.currentThread();
if (ourDispatchThread == curThread) {
return;
}
if (Boolean.TRUE.equals(component.getClientProperty(WAS_EVER_SHOWN))) {
assertIsDispatchThread();
} else {
final JRootPane root = component.getRootPane();
if (root != null) {
component.putClientProperty(WAS_EVER_SHOWN, Boolean.TRUE);
assertIsDispatchThread();
}
}
}
