How to use com.intellij.openapi.application

 public void actionPerformed(final AnActionEvent event) {
  ApplicationManager.getApplication().executeOnPooledThread(new Runnable() {
   public void run() {
    androidWifiADB.updateProject(event.getProject());
    androidWifiADB.connectDevices();
   }
  });
 }
}

 public static void showNotification(final String message,
   final NotificationType type) {
  ApplicationManager.getApplication().invokeLater(new Runnable() {
   @Override public void run() {
    Notification notification =
      NOTIFICATION_GROUP.createNotification(ANDROID_WIFI_ADB_TITLE, message, type, null);
    Notifications.Bus.notify(notification);
   }
  });
 }
}

 public void run() {
  ApplicationManager.getApplication().runReadAction(cmd);
 }
}

public static void clearError() {
 if (ApplicationManager.getApplication().isUnitTestMode()) {
  getInstance().error = false;
 }
}

private static void readActionInPooledThread(@NotNull Runnable runnable) {
 ApplicationManager.getApplication().executeOnPooledThread(() -> ApplicationManager.getApplication().runReadAction(runnable));
}

 public void run() {
  ApplicationManager.getApplication().runWriteAction(cmd);
 }
}

 @Nullable
 public static String retrieveGoPathFromEnvironment() {
  if (ApplicationManager.getApplication().isUnitTestMode()) return null;
  
  String path = EnvironmentUtil.getValue(GoConstants.GO_PATH);
  return path != null ? path : PathMacros.getInstance().getValue(GoConstants.GO_PATH);
 }
}

@NotNull
private static VimPlugin getInstance() {
 return (VimPlugin)ApplicationManager.getApplication().getComponent(IDEAVIM_COMPONENT_NAME);
}

private void doSetBreakpoints() {
 AccessToken token = ReadAction.start();
 try {
  getSession().initBreakpoints();
 }
 finally {
  token.finish();
 }
}

protected String getTestDataPath() {
 return PathManager.getHomePath() + "/community/plugins/ideavim/testData";
}

 private void updateUi() {
  ApplicationManager.getApplication().invokeLater(new Runnable() {
   @Override public void run() {
    cardLayoutDevices.setDevices(androidWifiADB.getDevices());
    cardLayoutDevices.updateUi();
   }
  });
 }
}

@Override public void disconnectDevice(final Device device) {
 ApplicationManager.getApplication().executeOnPooledThread(new Runnable() {
  public void run() {
   androidWifiADB.disconnectDevice(device);
   updateUi();
  }
 });
}

@Override
public void initComponent() {
 if (!ApplicationManager.getApplication().isUnitTestMode()) {
  EditorFactory.getInstance().addEditorFactoryListener(myListener, this);
 }
}

 @NotNull
 private VirtualFile createTestRoot(@NotNull String rootName) throws IOException {
  return ApplicationManager.getApplication().runWriteAction(new ThrowableComputable<VirtualFile, IOException>() {
   @NotNull
   @Override
   public VirtualFile compute() throws IOException {
    VirtualFile workingDirectory = myFixture.getTempDirFixture().findOrCreateDir(rootName);
    workingDirectory.createChildData(this, rootName + ".go");
    VirtualFile childDirectory = workingDirectory.createChildDirectory(this, "src");
    childDirectory.createChildData(this, "nested" + Character.toUpperCase(rootName.charAt(0)) + rootName.substring(1) + ".go");
    return workingDirectory;
   }
  });
 }
}

private void setupUI() {
 ApplicationManager.getApplication().invokeLater(new Runnable() {
  @Override public void run() {
   cardLayoutDevices.createAndShowGUI();
  }
 });
}

@Override public void connectDevice(final Device device) {
 ApplicationManager.getApplication().executeOnPooledThread(new Runnable() {
  public void run() {
   androidWifiADB.connectDevice(device);
   updateUi();
  }
 });
}

@Override
public final void init() {
 if (ApplicationManager.getApplication().isUnitTestMode()) {
  initOnce();
 }
 else {
  if (!myInitialized) {
   myInitialized = true;
   initOnce();
  }
 }
}

private void scheduleUpdate(int delay) {
 myAlarm.cancelAllRequests();
 UpdateRequest updateRequest = new UpdateRequest();
 if (isTestingMode) {
  ApplicationManager.getApplication().invokeLater(updateRequest);
 }
 else {
  myAlarm.addRequest(updateRequest, delay);
 }
}

private void monitorDevices() {
 ApplicationManager.getApplication().executeOnPooledThread(new Runnable() {
  public void run() {
   new Timer().schedule(new TimerTask() {
    @Override public void run() {
     boolean refreshRequired = androidWifiADB.refreshDevicesList();
     if (refreshRequired) {
      updateUi();
     }
    }
   }, 0, INTERVAL_REFRESH_DEVICES);
  }
 });
}

public void clear() {
 myText = null;
 if (!ApplicationManager.getApplication().isUnitTestMode()) {
  ExOutputPanel.getInstance(myEditor).deactivate(false);
 }
}