HarmonyOS 鸿蒙Next ability跳转问题

HarmonyOS 鸿蒙Next ability跳转问题
我想在Aability跳转到Bability，同时把A关闭 我如下写法，但是有概率会导致A没有关闭

JUMP_ENTRY_ABILITY_WANT: Want = {
  deviceId: '', // deviceId为空表示本设备
  bundleName: 'com.babytree.apps.hmpregnancy',
  abilityName: 'EntryAbility',
}
onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {
  //设置屏幕方向
  //将此次want事件转为DeepLinkEvent,在合适时机,触发跳转
  //跳转逻辑不在此处处理
  setTimeout(() => {
  this.context.startAbility(JUMP_ENTRY_ABILITY_WANT).finally(
  () => {
  setTimeout(() => {
  //启动EntryAbility后关闭自己
  this.context.terminateSelf()
})
}
)
})
}