An example route for the http4 producer is: from( "direct:processRequest" ) .setHeader(Exchange.HTTP_METHOD, constant( "DELETE" )) .removeHeader(Exchange.HTTP_PATH) .to( "http4: //localhost:9000/cursos/1?bridgeEndpoint= true " ) .log( "${body}" ); If you manipulate the exchange body prior to producing to the http4 endpoint, the exception is not thrown. For example from( "direct:processRequest" ) .setHeader(Exchange.HTTP_METHOD, constant( "DELETE" )) .removeHeader(Exchange.HTTP_PATH) .setBody(constant("")) //workaround for null body and http4 component .to( "http4: //localhost:9000/cursos/1?bridgeEndpoint= true " ) .log( "${body}" );