Resolution:
Description
==========
Inbound file poller for EDI is not processing an inbound EDI file and indicates Malformed EDI document detected error.

The BusinessConnect log shows the following error:

2013 Sep 30 09:07:03:762 GMT -5 BC.BusinessConnect-Interior_Server Error [bw.logger] BW-EXT-LOG-100000  Exception thrown in BMHPreprocess::filterData.  
2013 Sep 30 09:07:03:762 GMT -5 BC.BusinessConnect-Interior_Server Debug [bw.logger] BW-EXT-LOG-300002  java.lang.NullPointerException
    at com.tibco.ax.tibedi.config.HostInfoHelperImpl.&ltinit>(HostInfoHelperImpl.java:66)
    at com.tibco.ax.tibedi.config.HostInfoHelperImpl.&ltinit>(HostInfoHelperImpl.java:84)
    at com.tibco.ax.tibedi.config.HostInfoHelper.&ltinit>(HostInfoHelper.java:24)
    at com.tibco.ax.tibedi.runtime.pf.inbound.BMHPreProcessor.filterData(BMHPreProcessor.java:380)
    at com.tibco.ax.tibedi.runtime.pf.inbound.BMHPreProcessor.executeTask(BMHPreProcessor.java:235)
    at com.tibco.ax.tibedi.runtime.pf.inbound.BMHPreProcessor.Start(BMHPreProcessor.java:68)
    at com.tibco.ax.tibedi.runtime.inbound.EDIBMHService.validateDocument(EDIBMHService.java:143)
    at com.tibco.ax.fw.runtime.inbound.impl.IBBMHService.preProcessMsg(IBBMHService.java:185)
    at com.tibco.ax.fw.runtime.impl.AbstractService.preProcessor(AbstractService.java:290)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.tibco.plugin.gateway.InvokeOperationActivity.sInvokeServiceOp(InvokeOperationActivity.java:246)
    at com.tibco.plugin.gateway.InvokeOperationActivity$OperationThread.run(InvokeOperationActivity.java:376)
    at com.tibco.pe.util.ThreadPool$ThreadPoolThread.run(Unknown Source)

Environment
===========
TIBCO BusinessConnect 5.X.X and 6.X.X

Cause
===========
The error indicates BC is not able to find host and trading partner information.


Resolution
==========
To resolve the issue do the following :

Go to System Settings-&gtGeneral Settings and choose the default host. After that press "save".