Prevent NPE when no subfields

libris · Nov 11, 2024 · eb8c32b · eb8c32b
1 parent f2db8d1
commit eb8c32b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/whelk-core/src/main/groovy/whelk/converter/marc/RomanizationStep.groovy b/whelk-core/src/main/groovy/whelk/converter/marc/RomanizationStep.groovy
@@ -433,7 +433,7 @@ class RomanizationStep extends MarcFramePostProcStepBase {
             def fieldNumber = it.keySet()[0]
             def field = it[fieldNumber]
             if (field instanceof Map) {
-                def sf6 = field[SUBFIELDS].find { it.containsKey('6') }
+                def sf6 = field[SUBFIELDS]?.find { it.containsKey('6') }
                 if (sf6 && field[SUBFIELDS].any { Map sf -> sf.values().any { it.startsWith(OG_MARK) } }) {
                     field[SUBFIELDS] = (field[SUBFIELDS] - sf6).collect {
                         def subfield = it.keySet()[0]