int seen;

          @Override
          public boolean processLine(String line) {
            seen++;
            return false;
          }

          @Override
          public Integer getResult() {
            return seen;
          }
        };
    assertEquals(
        "processLine was called more than once",
        1,
        CharStreams.readLines(r, alwaysFalse).intValue());

            validateOptionalProjects(request, session);
            validateOptionalProfiles(session, request.getProfileActivation());

            if (session.getResult().hasExceptions()) {
                addExceptionToResult(result, session.getResult().getExceptions().get(0));
                persistResumptionData(result, session);
                return result;
            } else {

        this.reactorBuildStatus = reactorBuildStatus;
    }

    public ReactorBuildStatus getReactorBuildStatus() {
        return reactorBuildStatus;
    }

    public MavenExecutionResult getResult() {
        return result;
    }

    public ClassLoader getOriginalContextClassLoader() {
        return originalContextClassLoader;
    }

              public boolean processLine(String line) throws IOException {
                list.add(line);
                return true;
              }

              @Override
              public List<String> getResult() {
                return list;
              }
            });

    assertExpectedLines(list);
  }

  public void testReadLines_withProcessor_stopsOnFalse() throws IOException {

            final long buildStartTime) {
        // record the error and mark the project as failed
        long buildEndTime = System.currentTimeMillis();
        buildContext.getResult().addException(t);
        buildContext.getResult().addBuildSummary(new BuildFailure(mavenProject, buildEndTime - buildStartTime, t));

        // notify listeners about "soft" project build failures only

    public DependencyResolutionException(DependencyResolutionResult result, String message, Throwable cause) {
        super(message, cause);
        this.result = result;
    }

    public DependencyResolutionResult getResult() {
        return result;
    }

        return artifacts.iterator();
    }

    @Override
    public int size() {
        return artifacts.size();
    }

    @Override
    public DependencyResolutionResult getResult() {
        return result;
    }

  boolean processBytes(byte[] buf, int off, int len) throws IOException;

  /** Return the result of processing all the bytes. */
  @ParametricNullness
  T getResult();

        eventCatapult.fire(ExecutionEvent.Type.SessionStarted, session, null);

        ReactorContext reactorContext = null;
        ProjectBuildList projectBuilds = null;
        MavenExecutionResult result = session.getResult();

        try {
            if (buildExecutionRequiresProject(session) && projectIsNotPresent(session)) {
                throw new MissingProjectException("The goal you specified requires a project to execute"

        if (resolvedArtifacts instanceof ProjectArtifactsCache.ArtifactsSetWithResult) {
            return ((ProjectArtifactsCache.ArtifactsSetWithResult) resolvedArtifacts).getResult();
        } else {
            throw new IllegalStateException();
        }
    }

    public Set<Artifact> resolveProjectArtifacts(
            MavenProject project,