GitCommandResult (@NotNull GitRepository repository, @NotNull String branchToMerge, @Nullable List<String> additionalParams, GitLineHandlerListener @NotNull ... listeners) { final GitLineHandler mergeHandler = new GitLineHandler(repository.getProject(), repository.getRoot(), GitCommand.MERGE); mergeHandler.setSilent(false); mergeHandler.addParameters(branchToMerge); if (additionalParams != null) { mergeHandler.addParameters(additionalParams); } for (GitLineHandlerListener listener : listeners) { mergeHandler.addLineListener(listener); } return runCommand(mergeHandler); }