Bugfix for artifactId

Author: bhermann

src/main/resources/features.json

@@ -12,7 +12,7 @@
   {
     "name" :  "maven.artifactId",
     "description": "ArtifactId of a Maven Package",
-    "internalName": "identifier.artifactid"
+    "internalName": "identifier.artifactId"
   },
   {
     "name" :  "maven.version",
@@ -674,11 +674,6 @@
     "internalName": "hermes.features.public fields\nonly used by defininig type ",
     "name": "metrics.fields.publicvisiblelocal"
   },
-  {
-    "description": "",
-    "internalName": "hermes.features.sun",
-    "name": "sun"
-  },
   {
     "description": "Object-based Thread Notification (Object.notify, notifyAll, or wait).",
     "internalName": "hermes.features.Object-based Thread Notification",

src/main/scala/de/upb/cs/swt/delphi/webapi/search/SearchQuery.scala

@@ -19,6 +19,7 @@ package de.upb.cs.swt.delphi.webapi.search
 import com.sksamuel.elastic4s.http.ElasticDsl._
 import com.sksamuel.elastic4s.http.search.SearchHits
 import com.sksamuel.elastic4s.http.{ElasticClient, RequestFailure, RequestSuccess}
+import com.sksamuel.elastic4s.searches.queries.matches.MatchQuery
 import com.sksamuel.elastic4s.searches.queries.{NoopQuery, Query}
 import de.upb.cs.swt.delphi.core.model._
 import de.upb.cs.swt.delphi.core.ql._
@@ -112,7 +113,7 @@ class SearchQuery(configuration: Configuration, featureExtractor: FeatureQuery)
           )
         )
       }
-      case EqualExpr(field, value) => matchQuery(externalToInternalFeature(field.fieldName), value)
+      case EqualExpr(field, value) =>   matchQuery(externalToInternalFeature(field.fieldName), value)
       case NotEqualExpr(field, value) => bool(not(matchQuery(externalToInternalFeature(field.fieldName), value)))
       case GreaterThanExpr(field, value) => rangeQuery(externalToInternalFeature(field.fieldName)).gt(value.toLong)
       case GreaterOrEqualExpr(field, value) => rangeQuery(externalToInternalFeature(field.fieldName)).gte(value.toLong)