better error message

History.md

@@ -2,6 +2,8 @@
 - Fixed an error validation UBL files
 - unknown root elements will now throw type 3 errors
 - added some tests
+- Remove faulty '/' from getNodeListByPath call. PR #256, Thanks again to Weclapp-dev
+- Issue 238 Validierungsproblem mit Skonto/do nnot remove linebreaks in XML
 - Do not trim trailing whitespace in XML submitted by the user, e.g. for XRechnung Skonto in PaymenttermsDescription
 
 2.3.1

library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRDExporterFromA1.java

@@ -78,7 +78,7 @@ public class ZUGFeRDExporterFromA1 extends ZUGFeRDExporterFromA3 implements IZUG
 
 	public boolean ensurePDFIsValid(final DataSource dataSource) throws IOException {
 		if (!ignorePDFAErrors && !isValidA1(dataSource)) {
-			throw new IOException("File is not a valid PDF/A input file");
+			throw new IOException("File is not a valid PDF/A-1 input file");
 		}
 		return true;
 	}