ProgressIndicator (@NotNull Map<? extends SearchEverywhereContributor<?>, Integer> contributorsAndLimits, @NotNull String pattern) { LOG.debug("Search started for pattern [", pattern, "]"); if (pattern.isEmpty()) { if (ApplicationManager.getApplication().isUnitTestMode()) { contributorsAndLimits = Collections.emptyMap(); //empty search string is not allowed for tests } else { contributorsAndLimits = ContainerUtil.filter(contributorsAndLimits, c -> c.isEmptyPatternSupported()); } } Map<? extends SearchEverywhereContributor<?>, Integer> map = contributorsAndLimits; Function<ProgressIndicator, ResultsAccumulator> accumulatorSupplier = indicator -> new ResultsAccumulator(map, myEqualityProvider, myListener, myNotificationExecutor, indicator); return performSearch(contributorsAndLimits.keySet(), pattern, accumulatorSupplier); }