Oauth 2.0 Mule Box连接器-无效密钥类型/消息有效负载为字符串类型

我正在尝试编写一个使用Box连接器的Mule流。我可以进入

http://localhost:8081/auth

并成功授权。但是，只要我在我的box帐户中创建一个文件，我就会得到“调用getEvents失败。消息负载的类型为：String”。在根异常跟踪中，我会得到：“无效的密钥类型”

Mule流量（基于：）

以下是全部错误：

    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    + Started app 'boxtest'                                    +
    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    WARN  2014-02-06 10:00:35,607 [Box Long Polling thread for endpont http://2.realtime.services.box.net/subscribe?channel=removed&stream_type=all] org.mule.DefaultMuleMessage: setProperty(key, value) called with null value; removing key: boxAccessTokenId; please report the following stack trace to dev@mule.codehaus.org
    java.lang.Throwable
        at org.mule.DefaultMuleMessage.setProperty(DefaultMuleMessage.java:457)
        at org.mule.DefaultMuleMessage.addProperties(DefaultMuleMessage.java:1249)
        at org.mule.DefaultMuleMessage.<init>(DefaultMuleMessage.java:174)
        at org.mule.modules.box.processors.AbstractListeningMessageProcessor.process(AbstractListeningMessageProcessor.java:76)
        at org.mule.modules.box.lp.LongPollingClient$1.run(LongPollingClient.java:63)
        at java.lang.Thread.run(Unknown Source)
    ERROR 2014-02-06 10:00:35,823 [[boxtest].longPolling.stage1.02] org.mule.exception.DefaultMessagingExceptionStrategy: 
    ********************************************************************************
    Message               : Failed to invoke getEvents. Message payload is of type: String
    Code                  : MULE_ERROR--2
    --------------------------------------------------------------------------------
    Exception stack is:
    1. Invalid key type (java.lang.RuntimeException)
      org.mule.modules.box.oauth.BoxConnectorOAuthClientFactory:28 (null)
    2. Failed to invoke getEvents. Message payload is of type: String (org.mule.api.MessagingException)
      org.mule.modules.box.processors.GetEventsMessageProcessor:155 (http://www.mulesoft.org/docs/site/current3/apidocs/org/mule/api/MessagingException.html)
    --------------------------------------------------------------------------------
    Root Exception stack trace:
    java.lang.RuntimeException: Invalid key type
        at org.mule.modules.box.oauth.BoxConnectorOAuthClientFactory.makeObject(BoxConnectorOAuthClientFactory.java:28)
        at org.apache.commons.pool.impl.GenericKeyedObjectPool.borrowObject(GenericKeyedObjectPool.java:1179)
        at org.mule.modules.box.oauth.BoxConnectorOAuthManager.acquireAccessToken(BoxConnectorOAuthManager.java:339)
        + 3 more (set debug level logging or '-Dmule.verbose.exceptions=true' for everything)
    ********************************************************************************

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+已启动应用程序“boxtest”+
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
警告2014-02-06 10:00:35607[端桥的箱长轮询线程http://2.realtime.services.box.net/subscribe?channel=removed&stream_type=all]org.mule.DefaultMuleMessage：使用空值调用setProperty（key，value）；移除密钥：boxAccessTokenId；请将以下堆栈跟踪报告给dev@mule.codehaus.org
java.lang.Throwable
位于org.mule.DefaultMuleMessage.setProperty（DefaultMuleMessage.java:457）
在org.mule.DefaultMuleMessage.addProperties（DefaultMuleMessage.java:1249）上
在org.mule.DefaultMuleMessage上。（DefaultMuleMessage.java:174）
位于org.mule.modules.box.processors.AbstractListingMessageProcessor.process（AbstractListingMessageProcessor.java:76）
位于org.mule.modules.box.lp.LongPollingClient$1.run（LongPollingClient.java:63）
位于java.lang.Thread.run（未知源）
错误2014-02-06 10:00:35823[[boxtest].longPolling.stage1.02]org.mule.exception.DefaultMessaginExceptionStrategy:
********************************************************************************
消息：调用getEvents失败。消息负载的类型为：String
代码：MULE_错误--2
--------------------------------------------------------------------------------
异常堆栈是：
1.无效的密钥类型（java.lang.RuntimeException）
org.mule.modules.box.oauth.boxConnectorAuthClientFactory:28（空）
2.未能调用getEvents。消息负载的类型为：String（org.mule.api.MessaginException）
org.mule.modules.box.processors.GetEventsMessageProcessor:155(http://www.mulesoft.org/docs/site/current3/apidocs/org/mule/api/MessagingException.html)
--------------------------------------------------------------------------------
根异常堆栈跟踪：
java.lang.RuntimeException:无效的密钥类型
位于org.mule.modules.box.oauth.boxConnectorAuthClientFactory.makeObject（boxConnectorAuthClientFactory.java:28）
位于org.apache.commons.pool.impl.GenericKeyedObjectPool.borrowObject（GenericKeyedObjectPool.java:1179）
位于org.mule.modules.box.oauth.boxConnectorAuthManager.acquireAccessToken（boxConnectorAuthManager.java:339）
+3个以上（为所有内容设置调试级别日志或“-Dmule.verbose.exceptions=true”）
********************************************************************************

这在我看来像是一个bug：box:get events应该使用属性boxAccessTokenId作为身份验证令牌，有一个警告说由于空值而没有设置属性，当我查看值来自的BoxConnector类的源代码时，存在对从未设置的私有变量accessTokenIdentifier的引用。我向Mule开发地址报告了这一点。

…我最近在Mule 3.x和4.x运行时中使用了Box连接器。一旦我了解了需要什么，我就对设置的简单性感到满意

---

我建议现在就试试。

谢谢，我还以为是我。

    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    + Started app 'boxtest'                                    +
    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    WARN  2014-02-06 10:00:35,607 [Box Long Polling thread for endpont http://2.realtime.services.box.net/subscribe?channel=removed&stream_type=all] org.mule.DefaultMuleMessage: setProperty(key, value) called with null value; removing key: boxAccessTokenId; please report the following stack trace to dev@mule.codehaus.org
    java.lang.Throwable
        at org.mule.DefaultMuleMessage.setProperty(DefaultMuleMessage.java:457)
        at org.mule.DefaultMuleMessage.addProperties(DefaultMuleMessage.java:1249)
        at org.mule.DefaultMuleMessage.<init>(DefaultMuleMessage.java:174)
        at org.mule.modules.box.processors.AbstractListeningMessageProcessor.process(AbstractListeningMessageProcessor.java:76)
        at org.mule.modules.box.lp.LongPollingClient$1.run(LongPollingClient.java:63)
        at java.lang.Thread.run(Unknown Source)
    ERROR 2014-02-06 10:00:35,823 [[boxtest].longPolling.stage1.02] org.mule.exception.DefaultMessagingExceptionStrategy: 
    ********************************************************************************
    Message               : Failed to invoke getEvents. Message payload is of type: String
    Code                  : MULE_ERROR--2
    --------------------------------------------------------------------------------
    Exception stack is:
    1. Invalid key type (java.lang.RuntimeException)
      org.mule.modules.box.oauth.BoxConnectorOAuthClientFactory:28 (null)
    2. Failed to invoke getEvents. Message payload is of type: String (org.mule.api.MessagingException)
      org.mule.modules.box.processors.GetEventsMessageProcessor:155 (http://www.mulesoft.org/docs/site/current3/apidocs/org/mule/api/MessagingException.html)
    --------------------------------------------------------------------------------
    Root Exception stack trace:
    java.lang.RuntimeException: Invalid key type
        at org.mule.modules.box.oauth.BoxConnectorOAuthClientFactory.makeObject(BoxConnectorOAuthClientFactory.java:28)
        at org.apache.commons.pool.impl.GenericKeyedObjectPool.borrowObject(GenericKeyedObjectPool.java:1179)
        at org.mule.modules.box.oauth.BoxConnectorOAuthManager.acquireAccessToken(BoxConnectorOAuthManager.java:339)
        + 3 more (set debug level logging or '-Dmule.verbose.exceptions=true' for everything)
    ********************************************************************************