Java Groovy-没有方法的签名：Groovy.util.slurpersupport.NodeChildren.isArray（）

我正在编写一个程序，它可以保护/解除我的家庭，并且一切都能正常执行，但在执行结束时，我不断收到以下错误消息

groovy.lang.MissingMethodException:没有方法的签名：groovy.util.slurpersupport.NodeChildren.isArray（）适用于参数类型：（）值：[] 可能的解决方案：isEmpty（），every（）

我的代码是

def disarm() {
    log.debug "During disarming. SessionID: ${state.token}"
    if(state.token) {

        def paramsDisarm = [
            uri: "URL",
            body: [SessionID: state.token, LocationID: location, DeviceID: deviceID, UserCode: usercode]
            ]
            httpPost(paramsDisarm) { responseDisarm ->
            log.debug "Code is ${responseDisarm.data.ResultCode}"
            log.debug "Message: ${responseDisarm.data.ResultData}"  
            sendPush("Home is now Disarmed")
            }
       log.debug "Is this getting executed?"
       logout()
    }
    else
    {
    log.debug "Smart Things is not logged in. Need to login"
        login()
        disarm()
    }

}

我的注销电话是

def logout() {
    log.debug "During logout - ${state.token}"
    def paramsLogout = [
            uri: "URL",
            body: [SessionID: state.token]
            ]
            httpPost(paramsLogout) { responseLogout ->
            log.debug "Smart Things has successfully logged out"
        }  
}

查看控制台日志，我发现一切都执行得很好。这是控制台日志

8:58:41 PM: error groovy.lang.MissingMethodException: No signature of method: groovy.util.slurpersupport.NodeChildren.isArray() is applicable for argument types: () values: []
Possible solutions: isEmpty(), every()
8:58:41 PM: debug Smart Things has successfully logged out
8:58:40 PM: debug During logout - 65103122-1915-49C2-A021-015871AD7C93
8:58:40 PM: debug Is this getting executed?
8:58:40 PM: debug Message: Session Initiated. Poll for command state update
8:58:40 PM: debug Code is 4500
8:58:36 PM: debug During disarming. 65103122-1915-49C2-A021-015871AD7C93
8:58:36 PM: debug Smart Things has logged In. SessionID: '65103122-1915-49C2-A021-015871AD7C93'
8:58:32 PM: debug Smart Things is not logged in. Need to login
8:58:32 PM: debug During disarming. SessionID: null
8:58:32 PM: debug Mode is set to Home, Performing Disarm

---

我的代码运行良好，并且做了它应该做的事情，但是错误消息仍然让我感到不舒服。

异常的完整堆栈跟踪将有助于这一点。我用谷歌搜索了一下，想用它。但我不知道我该怎么做。有没有获取stacktrace的指针