Exception is thrown while using XSLT mediator

[Megala21]

Description:

Following exception is thrown while using XSLT mediator.

[2018-06-19 14:01:38,026] [EI-Core] ERROR - XSLTMediator Unable to perform XSLT transformation using : Value {name ='null', keyValue ='ESB-E2-LocalEntry-XsltEmptyPayloadsLeaveAudit.xslt'} against source XPath : s11:Body/child::*[position()=1] | s12:Body/child::*[position()=1] reason : Error creating XSLT transformer using : Value {name ='null', keyValue ='ESB-E2-LocalEntry-XsltEmptyPayloadsLeaveAudit.xslt'}
org.apache.synapse.SynapseException: Error creating XSLT transformer using : Value {name ='null', keyValue ='ESB-E2-LocalEntry-XsltEmptyPayloadsLeaveAudit.xslt'}
	at org.apache.synapse.mediators.AbstractMediator.handleException(AbstractMediator.java:367)
	at org.apache.synapse.mediators.transform.XSLTMediator.createTemplate(XSLTMediator.java:404)
	at org.apache.synapse.mediators.transform.XSLTMediator.performXSLT(XSLTMediator.java:243)
	at org.apache.synapse.mediators.transform.XSLTMediator.mediate(XSLTMediator.java:202)
	at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:97)
	at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:59)
	at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:158)
	at org.apache.synapse.core.axis2.ProxyServiceMessageReceiver.receive(ProxyServiceMessageReceiver.java:213)
	at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
	at org.apache.synapse.transport.passthru.ServerWorker.processEntityEnclosingRequest(ServerWorker.java:404)
	at org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.java:151)
	at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: javax.xml.transform.TransformerConfigurationException: javax.xml.transform.TransformerException: org.xml.sax.SAXException: Can not resolve namespace prefix: #all
	at org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFactoryImpl.java:933)
	at org.apache.synapse.mediators.transform.XSLTMediator.createTemplate(XSLTMediator.java:394)
	... 13 more

This is due to having xalan-2.7.2.wso2v2.jar, saxon9he.jar in endorsed folder. Since both have duplicated packages, if the saxon jar is picked up, the relevant functionality works fine, if xalan is picked up, the above exception is thrown.

Suggested Labels: Bug, EI 6.1.1 WUM updated

Suggested Assignees: N/A

Affected Product Version: EI 6.1.1

OS, DB, other environment details and versions: JDK 1.8

Steps to reproduce:

1. Remove saxon9he.jar
2. Created a proxy service with xslt tranformation
3. Call the proxy service

Related Issues: https://github.com/wso2/product-ei/issues/39

[aysegul-akbas]

Hi, I uninstalled the wso2 6.6.0 saxon jar and restarted, but I keep getting the above error.