private boolean checkNoDifferenceAndNotify(DiffPanel diffPanel, DiffRequest data, final Window window, final boolean showMessage) {
if (!diffPanel.hasDifferences() && !data.getHints().contains(HINT_ALLOW_NO_DIFFERENCES)) {
DiffManagerImpl manager = (DiffManagerImpl) DiffManager.getInstance();
if (!Comparing.equal(manager.getComparisonPolicy(), ComparisonPolicy.DEFAULT)) {
ComparisonPolicy oldPolicy = manager.getComparisonPolicy();
manager.setComparisonPolicy(ComparisonPolicy.DEFAULT);
Disposable parentDisposable = Disposer.newDisposable();
DiffPanel maybeDiffPanel = createDiffPanel(data, window, parentDisposable, this);
manager.setComparisonPolicy(oldPolicy);