class MavenToolchainMergerTest {
    private MavenToolchainMerger merger = new MavenToolchainMerger();

    private DefaultToolchainsReader reader = new DefaultToolchainsReader();

    @Test
    void testMergeNulls() {
        merger.merge(null, null, null);

        PersistedToolchains pt = new PersistedToolchains();
        merger.merge(pt, null, null);
        merger.merge(null, pt, null);
    }

    @Test

        Model source = Model.newBuilder().artifactId("SOURCE").build();

        Model merged = mavenMerger.merge(target, source, true, null);
        assertThat(merged.getArtifactId(), is("SOURCE"));

        merged = mavenMerger.merge(target, source, false, null);
        assertThat(merged.getArtifactId(), is("TARGET"));
    }

    @Test
    void mergeSameContributors() {
        Contributor contributor =

	Totals  [60]AccElem
	LastMin int64
}

// Merge data of two ReplicationLastHour structure
func (l ReplicationLastHour) merge(o ReplicationLastHour) (merged ReplicationLastHour) {
	if l.LastMin > o.LastMin {
		o.forwardTo(l.LastMin)
		merged.LastMin = l.LastMin
	} else {
		l.forwardTo(o.LastMin)
		merged.LastMin = o.LastMin
	}

	for i := range merged.Totals {
		merged.Totals[i] = AccElem{

        return path;
    }

    public void merge(File existing, File result) throws RepositoryException {
        merge(existing != null ? existing.toPath() : null, result != null ? result.toPath() : null);
    }

    @Override
    public void merge(Path existing, Path result) throws RepositoryException {
        Metadata recessive = read(existing);

        merge(recessive);

        write(result, metadata);

    @Nullable
    Object getInputLocation();

    default XmlNode merge(@Nullable XmlNode source) {
        return merge(source, (Boolean) null);
    }

    XmlNode merge(@Nullable XmlNode source, @Nullable Boolean childMergeOverride);

    /**
     * Merge recessive into dominant and return either {@code dominant}
     * with merged information or a clone of {@code recessive} if
     * {@code dominant} is {@code null}.

	return clone
}

func (l lastDayTierStats) merge(m lastDayTierStats) (merged lastDayTierStats) {
	cl := l.clone()
	cm := m.clone()

	if cl.UpdatedAt.After(cm.UpdatedAt) {
		cm.forwardTo(cl.UpdatedAt)
		merged.UpdatedAt = cl.UpdatedAt
	} else {
		cl.forwardTo(cm.UpdatedAt)
		merged.UpdatedAt = cm.UpdatedAt
	}

	for i := range cl.Bins {
		merged.Bins[i] = cl.Bins[i].add(cm.Bins[i])
	}

	return merged

@Deprecated(since = "4.0.0")
public interface ProfileInjector {

    /**
     * Merges values from the specified profile into the given model. Implementations are expected to keep the profile
     * and model completely decoupled by injecting deep copies rather than the original objects from the profile.
     *
     * @param model The model into which to merge the values defined by the profile, must not be <code>null</code>.

			// Same, discard one.
			merged = append(merged, a[0])
			a = a[1:]
			b = b[1:]
		case a[0].name < b[0].name:
			merged = append(merged, a[0])
			a = a[1:]
		default:
			merged = append(merged, b[0])
			b = b[1:]
		}
		if limit > 0 && len(merged) >= limit {
			break
		}
	}
	// Append anything left.
	if limit < 0 || len(merged) < limit {
		merged = append(merged, a...)

// CHECKSTYLE_OFF: RegexpHeader
/**
 * POM merger.
 */

 * but sometimes changes on release notes.md was brought to master and merged unnoticed,
 * e.g https://github.com/gradle/gradle/pull/25825
 *
 * This script is to check if there is any merge commit that brings changes from release branch to master.
 * Usage: groovy CheckBadMerge.groovy <commit1> <commit2> ...
 * If any "bad" merge commit is found, it will print the details and exit with non-zero code.
 */
class CheckBadMerge {