普元 ESB 6.6，环境中之前打了补丁：ESB_6.6.0.0_20171031_P1，现在打补丁：ESB_6.6.0.0_Server_20171227_P2后，sap提供的Webservice的wsdl无法访问。

问题描述：环境中之前打了补丁：ESB_6.6.0.0_20171031_P1，现在打补丁：ESB_6.6.0.0_Server_20171227_P2后，sap提供的Webservice的wsdl无法访问，报错：

[default][2018-01-12 10:20:45,789][ERROR][com.primeton.esb.soap.inbound.model.WebServiceProxyService:302] Error occured when handle ?wsdl request in ws inbound.
javax.wsdl.WSDLException: WSDLException: faultCode=OTHER_ERROR: Can't find prefix for 'http://schemas.xmlsoap.org/wsdl/soap/'. Namespace prefixes must be set on the Definition object using the addNamespace(...) method.
        at com.ibm.wsdl.util.xml.DOMUtils.getPrefix(Unknown Source)
        at com.ibm.wsdl.util.xml.DOMUtils.getQualifiedValue(Unknown Source)
        at com.ibm.wsdl.extensions.soap.SOAPBindingSerializer.marshall(Unknown Source)
        at com.ibm.wsdl.xml.WSDLWriterImpl.printExtensibilityElements(Unknown Source)
        at com.ibm.wsdl.xml.WSDLWriterImpl.printBindings(Unknown Source)
        at com.ibm.wsdl.xml.WSDLWriterImpl.printDefinition(Unknown Source)
        at com.ibm.wsdl.xml.WSDLWriterImpl.writeWSDL(Unknown Source)
        at com.primeton.esb.soap.inbound.model.WSDLUtil.getNewWSDLContent(WSDLUtil.java:172)
        at com.primeton.esb.soap.inbound.model.WebServiceProxyService.handleGetWSDL(WebServiceProxyService.java:280)
        at com.primeton.esb.soap.inbound.model.WebServiceProxyService.access$100(WebServiceProxyService.java:55)
        at com.primeton.esb.soap.inbound.model.WebServiceProxyService$Dispatcher_RequestHandler.handleMessage(WebServiceProxyService.java:354)
        at com.primeton.tip.org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:104)
        at com.primeton.tip.org.springframework.integration.dispatcher.UnicastingDispatcher.access$000(UnicastingDispatcher.java:47)
        at com.primeton.tip.org.springframework.integration.dispatcher.UnicastingDispatcher$1.run(UnicastingDispatcher.java:86)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

解决方案：此问题可以通过补丁解决，请向普元售后（cservice@primeton.com）申请，对应补丁号为：ESB_6.6.0.0_Server_20180112_P1。