[EI6.3.0]-When there is a extra un-map attribute the data mapper throws an error in EI 6.3.0

[isurul28]

Description:
When we have an attribute in the input payload which not mapped in data mapper we are getting the below error
[2022-01-12 12:03:26,903] [EI-Core] ERROR - DataMapperMediator DataMapper mediator : mapping failed [2022-01-12 12:03:26,903] [EI-Core] ERROR - DataMapperMediator DataMapper mediator : mapping failedInput type is incorrect or Invalid element found in the message payload : extrafield at org.wso2.carbon.mediator.datamapper.engine.input.readers.XMLInputReader.xmlTraverse(XMLInputReader.java:174) at org.wso2.carbon.mediator.datamapper.engine.input.readers.XMLInputReader.xmlTraverse(XMLInputReader.java:230) at org.wso2.carbon.mediator.datamapper.engine.input.readers.XMLInputReader.xmlTraverse(XMLInputReader.java:230) at org.wso2.carbon.mediator.datamapper.engine.input.readers.XMLInputReader.xmlTraverse(XMLInputReader.java:230) at org.wso2.carbon.mediator.datamapper.engine.input.readers.XMLInputReader.xmlTraverse(XMLInputReader.java:230) at org.wso2.carbon.mediator.datamapper.engine.input.readers.XMLInputReader.xmlTraverse(XMLInputReader.java:230) at org.wso2.carbon.mediator.datamapper.engine.input.readers.XMLInputReader.read(XMLInputReader.java:120) at org.wso2.carbon.mediator.datamapper.engine.input.InputBuilder.buildInputModel(InputBuilder.java:59) at org.wso2.carbon.mediator.datamapper.engine.core.mapper.MappingHandler.doMap(MappingHandler.java:90) at org.wso2.carbon.mediator.datamapper.DataMapperMediator.transform(DataMapperMediator.java:311) at org.wso2.carbon.mediator.datamapper.DataMapperMediator.mediate(DataMapperMediator.java:260) at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:109) at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:71) at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:158) at org.apache.synapse.core.axis2.ProxyServiceMessageReceiver.receive(ProxyServiceMessageReceiver.java:224) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180) at org.apache.synapse.transport.passthru.ServerWorker.processNonEntityEnclosingRESTHandler(ServerWorker.java:338) at org.apache.synapse.transport.passthru.ServerWorker.processEntityEnclosingRequest(ServerWorker.java:384) 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)

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Steps to reproduce:
Steps to reproduce

Get a EI 6.3.0 pack and simple data mapper
now for that service send a payload with an attribute which has extra attribute and you will get this error

Related Issues:
wso2/carbon-mediation#1209