java.lang.NullPointerException
	at java.base/java.util.Objects.requireNonNull(Objects.java:221)
	at java.base/java.util.ImmutableCollections$List12.<init>(ImmutableCollections.java:371)
	at java.base/java.util.List.of(List.java:807)
	at org.ametys.plugins.contentio.csv.CSVImporter._getAttributeDefinitionValues(CSVImporter.java:412)
	at org.ametys.plugins.contentio.csv.CSVImporter._getValue(CSVImporter.java:228)
	at org.ametys.plugins.contentio.csv.CSVImporter._processContent(CSVImporter.java:174)
	at org.ametys.plugins.contentio.csv.CSVImporter.importContentsFromCSV(CSVImporter.java:139)
	at org.ametys.plugins.contentio.csv.ImportCSVFileHelper.importContents(ImportCSVFileHelper.java:177)