fix(bpdm-clearing): refactored legal name construction logic

CHANGELOG.md

@@ -28,6 +28,7 @@ For changes to the BPDM Helm charts please consult the [changelog](charts/bpdm/C
 - BPDM Cleaning Service Dummy: Improve duplication check to better distinguish between incoming business partners
 - Apps: Updated double precision data type for Geographic-data([#978](https://github.com/eclipse-tractusx/bpdm/issues/978))
 - BPDM Gate: Improved error response by adding external id details and reduced csv columns by removing support for uncategorized fields in csv file for partner upload process([#700](https://github.com/eclipse-tractusx/sig-release/issues/700))
+- BPDM Cleaning Service Dummy: Added a null check for name parts to ensure proper whitespace handling when constructing the legal name from them.
 - BPDM Gate: Enabled Tax Jurisdiction code to save it to the Output.
 
 ## [6.1.0] - [2024-07-15]

bpdm-cleaning-service-dummy/src/main/kotlin/org/eclipse/tractusx/bpdm/cleaning/service/CleaningServiceDummy.kt

@@ -108,7 +108,7 @@ class CleaningServiceDummy(
         return with(businessPartner.legalEntity){
                 copy(
                     bpnReference = bpnReference.toRequestIfNotBpn(businessPartner.legalEntityReference()),
-                    legalName = legalName ?: businessPartner.uncategorized.nameParts.joinToString(" "),
+                    legalName = legalName ?: businessPartner.uncategorized.nameParts.takeIf { it.isNotEmpty() }?.joinToString(" "),
                     identifiers = identifiers.takeIf { it.isNotEmpty() } ?: businessPartner.uncategorized.identifiers,
                     states = states.takeIf { it.isNotEmpty() } ?: businessPartner.uncategorized.states,
                     confidenceCriteria = dummyConfidenceCriteria.copy(sharedByOwner = sharedByOwner),