WSO2 DSS 3.5.0中的axis2_1.6.1.wso2v15找不到TCPTransportSender

我正在将WSO2 DSS 3.2.2服务器升级到3.5.0,但我最终收到此错误:

Caused by: java.lang.ClassNotFoundException: org.apache.axis2.transport.tcp.TCPTransportSender cannot be found by axis2_1.6.1.wso2v15
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412)
    at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:195)
    at org.apache.axis2.util.Loader.loadClass(Loader.java:261)
    at org.apache.axis2.deployment.AxisConfigBuilder.processTransportSenders(AxisConfigBuilder.java:686)

这是配置问题还是我需要添加特定的JAR库？如果是的话,哪一个？

编辑:我刚刚发现axis2_1.6.1.wso2v10.jar有这个org.apache.axis2.transport.tcp.TCPTransportSender类,但是axis2_1.6.1.wso2v15.jar没有.