camel run X12-837P* 837-to-xml*
or
camel run X12-837P* xml-to-837*
or
camel run X12-837P.dfdl.xsd x12-837-datamapper.camel.yaml kaoto-datamapper-2df1aa0e.xsl 837-to-xml-input-message.edi
Also possible to raise log level and/or enable JVM debugger for debugging purpose, for example
camel run X12-837P* 837-to-xml* --logging-category=org.apache.daffodil=DEBUG --jvm-debug