fixed NPE

dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/orcid/ORCIDToOAF.scala

@@ -76,7 +76,9 @@ object ORCIDToOAF {
     implicit lazy val formats: DefaultFormats.type = org.json4s.DefaultFormats
     lazy val json: json4s.JValue = parse(input)
 
-    val oid = (json \ "workDetail" \"oid").extract[String]
+    val oid = (json \ "workDetail" \"oid").extractOrElse[String](null)
+    if (oid == null)
+      return List()
     val doi:List[(String, String)] = for {
       JObject(extIds) <-  json \ "workDetail" \"extIds"
       JField("type", JString(typeValue)) <- extIds

dhp-workflows/dhp-doiboost/src/main/resources/eu/dnetlib/dhp/doiboost/convert_map_to_oaf_params.json

@@ -1,6 +1,6 @@
 [
   {"paramName":"s",   "paramLongName":"sourcePath", "paramDescription": "the path of the Orcid Input file",  "paramRequired": true},
-  {"paramName":"w",   "paramLongName":"workingPath", "paramDescription": "the working path ",  "paramRequired": true},
+  {"paramName":"w",   "paramLongName":"workingPath", "paramDescription": "the working path ",  "paramRequired": false},
   {"paramName":"t",   "paramLongName":"targetPath", "paramDescription": "the working dir path",                      "paramRequired": true},
   {"paramName":"m",   "paramLongName":"master",     "paramDescription": "the master name",                          "paramRequired": true}