diff --git a/src/main/scala/org/dbpedia/databus/SparqlClient.scala b/src/main/scala/org/dbpedia/databus/SparqlClient.scala
index dc39fac..af05675 100644
--- a/src/main/scala/org/dbpedia/databus/SparqlClient.scala
+++ b/src/main/scala/org/dbpedia/databus/SparqlClient.scala
@@ -434,7 +434,7 @@ object RdfConversions {
 
     import org.apache.jena.riot.SysRIOT.fmtMessage
 
-    private val reportAsError = List(
+    private val reportAsError: Set[String] = List(
       ViolationCodes.ILLEGAL_CHARACTER,
       ViolationCodes.CONTROL_CHARACTER,
       ViolationCodes.NON_XML_CHARACTER,
@@ -462,11 +462,11 @@ object RdfConversions {
       ViolationCodes.PROHIBITED_COMPONENT_PRESENT,
       ViolationCodes.SCHEME_REQUIRES_LOWERCASE,
       ViolationCodes.SCHEME_PATTERN_MATCH_FAILED
-    ).map(i => s"Code: $i")
+    ).map(i => s"Code: $i/")
       // there is a weird additional URI check for spaces
       // org.apache.jena.riot.system.ParserProfileStd method internalMakeIRI line 95
       // {@link org.apache.jena.riot.system.ParserProfileStd#internalMakeIRI}
-      .+("Spaces are not legal in URIs/IRIs.").toSet
+      .:+("Spaces are not legal in URIs/IRIs.").toSet
 
 
     override def warning(message: String, line: Long, col: Long): Unit =
diff --git a/src/test/resources/group.jsonld b/src/test/resources/group.jsonld
index ea36528..dac4616 100644
--- a/src/test/resources/group.jsonld
+++ b/src/test/resources/group.jsonld
@@ -1,6 +1,6 @@
 {
 	"@context" : "https://raw.githubusercontent.com/dbpedia/databus-git-mockup/main/dev/context.jsonld",
-	"@id": "http://databus.dbpedia.org/kuckuck/nest",
+	"@id": "htTp://databus.dbpedia.org/kuckuck/nest",
 	"@type": "dataid:Group",
 	"title": {
                     "@value": "Test Title",
diff --git a/src/test/resources/newline_in_iri.jsonld b/src/test/resources/newline_in_iri.jsonld
index cfb3976..045637f 100644
--- a/src/test/resources/newline_in_iri.jsonld
+++ b/src/test/resources/newline_in_iri.jsonld
@@ -24,7 +24,7 @@
       "abstract": "Countries\n2023-09-18T12:22:14Z",
       "description": "Countries\n2023-09-18T12:22:14Z",
       "license": "https://dalicc.net/licenselibrary/Cc010Universal",
-      "wasDerivedFrom": "https://metadata.coypu.org/dataset/wikidata-distribution\nWikidataQueryService\nhttps://query.wikidata.org/",
+      "wasDerivedFrom": "hTtps://metadata.coypu.org/dataset/wikidata-distribution\nWikidataQueryService\nhttps://query.wikidata.org/",
       "distribution": [
         {
           "@type": "Part",