LinkageError in Java Mapping in PI7.1

Hi,

Using a Java mapping to receive EDI file and sent to different location based on the content in the file. When I tried to run from the end to end received the below error

<SAP:Code area="RCVR_DETERMINATION">CX_RD_PLSRV</SAP:Code>

  <SAP:P1>Problem while determining receivers using interface mapping: Error while determining root tag of XML: BOM / charset detection failed</SAP:P1>

  <SAP:P2 />

  <SAP:P3 />

  <SAP:P4 />

  <SAP:AdditionalText />

  <SAP:Stack>Error when determining the receiver: Problem while determining receivers using interface mapping: Error while determining root tag of XML: BOM / charset detection failed Problem while determining receivers using interface mapping: Error while determining root tag of XML: BOM / charset detection failed Error while determining root tag of XML: BOM / charset detection failed Error while parsing an XML stream: &#39;BOM / charset detection failed&#39;.</SAP:Stack>

If I run in Operation Mapping

        LinkageError when loading class UpmFileIdentification/bin/fileidentification; details: java.lang.NoClassDefFoundErro

Appreciate your inputs and quick response.

Thanks,

Senthil