void (@NotNull Disposable parentDisposable, @NotNull VirtualFilePointerImpl pointer) { DelegatingDisposable result = ourInstances.get(parentDisposable); if (result == null) { DelegatingDisposable newDisposable = new DelegatingDisposable(parentDisposable, pointer); result = ConcurrencyUtil.cacheOrGet(ourInstances, parentDisposable, newDisposable); if (result == newDisposable) { Disposer.register(parentDisposable, result); return; } } result.increment(pointer); }