private Content createNewContent(
     final ContentManager contentManager,
     final RunContentDescriptor descriptor,
     Executor executor) {
   final String processDisplayName = descriptor.getDisplayName();
   final Content content =
       ContentFactory.SERVICE
           .getInstance()
           .createContent(descriptor.getComponent(), processDisplayName, true);
   content.putUserData(DESCRIPTOR_KEY, descriptor);
   content.putUserData(ToolWindow.SHOW_CONTENT_ICON, Boolean.TRUE);
   contentManager.addContent(content);
   new CloseListener(content, executor);
   return content;
 }
  public void showRunContent(
      @NotNull final Executor executor, final RunContentDescriptor descriptor) {
    if (ApplicationManager.getApplication().isUnitTestMode()) return;

    final ContentManager contentManager = getContentManagerForRunner(executor);
    RunContentDescriptor oldDescriptor =
        chooseReuseContentForDescriptor(contentManager, descriptor);

    final Content content;

    if (oldDescriptor != null) {
      content = oldDescriptor.getAttachedContent();
      getSyncPublisher().contentRemoved(oldDescriptor, executor);
      oldDescriptor.dispose(); // is of the same category, can be reused
    } else {
      content = createNewContent(contentManager, descriptor, executor);
      final Icon icon = descriptor.getIcon();
      content.setIcon(icon == null ? executor.getToolWindowIcon() : icon);
    }

    content.setComponent(descriptor.getComponent());
    content.putUserData(DESCRIPTOR_KEY, descriptor);
    final ProcessHandler processHandler = descriptor.getProcessHandler();
    if (processHandler != null) {
      final ProcessAdapter processAdapter =
          new ProcessAdapter() {
            public void startNotified(final ProcessEvent event) {
              LaterInvocator.invokeLater(
                  new Runnable() {
                    public void run() {
                      final Icon icon = descriptor.getIcon();
                      content.setIcon(icon == null ? executor.getToolWindowIcon() : icon);
                    }
                  });
            }

            public void processTerminated(final ProcessEvent event) {
              LaterInvocator.invokeLater(
                  new Runnable() {
                    public void run() {
                      final Icon icon = descriptor.getIcon();
                      content.setIcon(
                          icon == null
                              ? executor.getDisabledIcon()
                              : IconLoader.getTransparentIcon(icon));
                    }
                  });
            }
          };
      processHandler.addProcessListener(processAdapter);
      final Disposable disposer = content.getDisposer();
      if (disposer != null) {
        Disposer.register(
            disposer,
            new Disposable() {
              public void dispose() {
                processHandler.removeProcessListener(processAdapter);
              }
            });
      }
    }
    content.setDisplayName(descriptor.getDisplayName());
    descriptor.setAttachedContent(content);
    content.getManager().setSelectedContent(content);

    ApplicationManager.getApplication()
        .invokeLater(
            new Runnable() {
              public void run() {
                ToolWindow window =
                    ToolWindowManager.getInstance(myProject)
                        .getToolWindow(executor.getToolWindowId());
                // let's activate tool window, but don't move focus
                //
                // window.show() isn't valid here, because it will not
                // mark the window as "last activated" windows and thus
                // some action like navigation up/down in stactrace wont
                // work correctly
                window.activate(null, false, false);
              }
            });
  }
  /** @return can be null if user cancelled operation */
  @Nullable
  public static AntBuildMessageView openBuildMessageView(
      Project project, AntBuildFileBase buildFile, String[] targets) {
    final VirtualFile antFile = buildFile.getVirtualFile();
    if (!LOG.assertTrue(antFile != null)) {
      return null;
    }

    // check if there are running instances of the same build file

    MessageView ijMessageView = MessageView.SERVICE.getInstance(project);
    Content[] contents = ijMessageView.getContentManager().getContents();
    for (Content content : contents) {
      if (content.isPinned()) {
        continue;
      }
      AntBuildMessageView buildMessageView = content.getUserData(KEY);
      if (buildMessageView == null) {
        continue;
      }

      if (!antFile.equals(buildMessageView.getBuildFile().getVirtualFile())) {
        continue;
      }

      if (buildMessageView.isStopped()) {
        ijMessageView.getContentManager().removeContent(content, true);
        continue;
      }

      int result =
          Messages.showYesNoCancelDialog(
              AntBundle.message("ant.is.active.terminate.confirmation.text"),
              AntBundle.message("starting.ant.build.dialog.title"),
              Messages.getQuestionIcon());

      switch (result) {
        case 0: // yes
          buildMessageView.stopProcess();
          ijMessageView.getContentManager().removeContent(content, true);
          continue;
        case 1: // no
          continue;
        default: // cancel
          return null;
      }
    }

    final AntBuildMessageView messageView = new AntBuildMessageView(project, buildFile, targets);
    String contentName = buildFile.getPresentableName();
    contentName = BUILD_CONTENT_NAME + " (" + contentName + ")";

    final Content content =
        ContentFactory.SERVICE
            .getInstance()
            .createContent(messageView.getComponent(), contentName, true);
    content.putUserData(KEY, messageView);
    ijMessageView.getContentManager().addContent(content);
    ijMessageView.getContentManager().setSelectedContent(content);
    content.setDisposer(
        new Disposable() {
          @Override
          public void dispose() {
            Disposer.dispose(messageView.myAlarm);
          }
        });
    new CloseListener(content, ijMessageView.getContentManager(), project);
    // Do not inline next two variabled. Seeking for NPE.
    ToolWindow messageToolWindow =
        ToolWindowManager.getInstance(project).getToolWindow(ToolWindowId.MESSAGES_WINDOW);
    messageToolWindow.activate(null, false);
    return messageView;
  }