String message, Set<Feature<?>> conflicts, Object source) {
    super(message);
    this.conflicts = conflicts;
    this.source = source;
  }

  public Set<Feature<?>> getConflicts() {
    return conflicts;
  }

  public Object getSource() {
    return source;
  }

  @Override
  public String getMessage() {
    return super.getMessage() + " (source: " + source + ")";
  }

      String message, Set<Feature<?>> conflicts, Object source) {
    super(message);
    this.conflicts = conflicts;
    this.source = source;
  }

  public Set<Feature<?>> getConflicts() {
    return conflicts;
  }

  public Object getSource() {
    return source;
  }

  @Override
  public String getMessage() {
    return super.getMessage() + " (source: " + source + ")";
  }

            ConflictingRequirementsException.class,
            () ->
                FeatureUtil.buildTesterRequirements(
                    ConflictingRequirementsExampleDerivedInterfaceTester.class));
    assertThat(e.getConflicts()).contains(ExampleBaseFeature.BASE_FEATURE_1);
    assertEquals(ConflictingRequirementsExampleDerivedInterfaceTester.class, e.getSource());
  }

        super(buildMessage(conflicts));
        this.conflicts = conflicts;
        this.resolutions = resolutions;
    }

    public Collection<Conflict> getConflicts() {
        return conflicts;
    }

    private static String buildMessage(Collection<Conflict> conflicts) {
        TreeFormatter formatter = new TreeFormatter();

            ConflictingRequirementsException.class,
            () ->
                FeatureUtil.buildTesterRequirements(
                    ConflictingRequirementsExampleDerivedInterfaceTester.class));
    assertThat(e.getConflicts()).contains(ExampleBaseFeature.BASE_FEATURE_1);
    assertEquals(ConflictingRequirementsExampleDerivedInterfaceTester.class, e.getSource());
  }

            output.println();
        });
    }

    private void handleConflict(final VersionConflictException conflict) {
        registerError(output -> {
            Collection<Conflict> conflicts = conflict.getConflicts();
            String plural = getPluralEnding(conflicts);
            output.text("Dependency resolution failed because of conflict" + plural + " on the following module"+ plural + ":");
            output.println();