Merge Button using GitHub Java API

MergeButton.java

import java.io.IOException;
import java.util.Collections;
import java.util.List;

import org.eclipse.egit.github.core.IRepositoryIdProvider;
import org.eclipse.egit.github.core.MergeStatus;
import org.eclipse.egit.github.core.PullRequest;
import org.eclipse.egit.github.core.RepositoryId;
import org.eclipse.egit.github.core.client.GitHubClient;
import org.eclipse.egit.github.core.service.PullRequestService;

/**
 * Merge button class
 */
public class MergeButton {

	private final GitHubClient client;

	/**
	 * Create merge button with given client
	 * 
	 * @param client
	 */
	public MergeButton(GitHubClient client) {
		this.client = client;
	}

	/**
	 * Merge all mergeable open pull requests in the given repository
	 * 
	 * @param repository
	 * @throws IOException
	 */
	public void mergeAll(IRepositoryIdProvider repository) throws IOException {
		PullRequestService service = new PullRequestService(client);
		List<PullRequest> pullRequests = service.getPullRequests(repository,
				"open");
		// Merge oldest first
		Collections.reverse(pullRequests);
		for (PullRequest request : pullRequests)
			merge(repository, request.getNumber());
	}

	/**
	 * Merge pull request with given number if mergeable
	 * 
	 * @param repository
	 * @param number
	 * @return status of merge or null if pull request is not mergeable
	 * @throws IOException
	 */
	public MergeStatus merge(IRepositoryIdProvider repository, int number)
			throws IOException {
		PullRequestService service = new PullRequestService(client);
		if (service.getPullRequest(repository, number).isMergeable())
			return service.merge(repository, number, "");
		else
			return null;
	}

	/**
	 * Merge pull requests that can be merged
	 * 
	 * @param args
	 * @throws IOException
	 */
	public static void main(String... args) throws IOException {
		GitHubClient client = new GitHubClient();
		// Update with actual user/password or OAuth2 access token
		client.setCredentials("user", "password");
		// Update with repository owner and name such as 'rails/rails'
		RepositoryId repository = new RepositoryId("user", "project");
		// Merge all open pull requests taht are mergeable
		new MergeButton(client).mergeAll(repository);
	}
}