Removing datechecked Xrechnung version switch (became effective 2020-01-01 anyway)

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

@@ -126,13 +126,19 @@ public interface IExportableTransaction  {
 		return null;
 	}
 
-	IZUGFeRDAllowanceCharge[] getZFAllowances();
+	default IZUGFeRDAllowanceCharge[] getZFAllowances() {
+		return null;
+	}
 
 
-	IZUGFeRDAllowanceCharge[] getZFCharges();
+	default IZUGFeRDAllowanceCharge[] getZFCharges() {
+		return null;
+	}
 
 
-	IZUGFeRDAllowanceCharge[] getZFLogisticsServiceCharges();
+	default IZUGFeRDAllowanceCharge[] getZFLogisticsServiceCharges() {
+		return null;
+	}
 
 
 	IZUGFeRDExportableItem[] getZFItems();
@@ -290,7 +296,7 @@ public interface IExportableTransaction  {
 	 * @return three character currency of this invoice
 	 */
 	default String getCurrency() {
-		return null;
+		return "EUR";
 	}
 
 

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

@@ -37,13 +37,17 @@ public interface IZUGFeRDExportableItem extends IAbsoluteValueProvider{
 	 * item level discounts
 	 * @return array of the discounts on a single item
 	 */
-	IZUGFeRDAllowanceCharge[] getItemAllowances();
+	default IZUGFeRDAllowanceCharge[] getItemAllowances() {
+		return null;
+	}
 
 	/**
 	 * item level price additions
 	 * @return array of the additional charges on the item
 	 */
-	IZUGFeRDAllowanceCharge[] getItemCharges();
+	default IZUGFeRDAllowanceCharge[] getItemCharges() {
+		return null;
+	}
 
 
 	/**

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

@@ -68,17 +68,13 @@ public interface IZUGFeRDExportableTradeParty {
 	 *
 	 * @return First and last name of the recipient
 	 */
-	default String getName() {
-		return null;
-	}
+	String getName();
 	/**
 	 * Postal code of the recipient
 	 *
 	 * @return Postal code of the recipient
 	 */
-	default String getZIP() {
-		return null;
-	}
+	String getZIP();
 
 
 	/**
@@ -96,9 +92,7 @@ public interface IZUGFeRDExportableTradeParty {
 	 *
 	 * @return two-letter iso country code of the contact
 	 */
-	default String getCountry() {
-		return null;
-	}
+	String getCountry();
 
 
 	/**
@@ -106,9 +100,7 @@ public interface IZUGFeRDExportableTradeParty {
 	 *
 	 * @return Returns the city of the recipient
 	 */
-	default String getLocation() {
-		return null;
-	}
+	String getLocation();
 
 
 	/**
@@ -116,9 +108,7 @@ public interface IZUGFeRDExportableTradeParty {
 	 *
 	 * @return street address (street+number) of the contact
 	 */
-	default String getStreet() {
-		return null;
-	}
+	String getStreet();
 
 	/**
 	 * returns additional address information which is display in xml tag "LineTwo"

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

@@ -20,7 +20,6 @@
  */
 package org.mustangproject.ZUGFeRD;
 
-import java.time.Year;
 import java.util.Map;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
@@ -32,7 +31,7 @@ public class Profiles {
 			{"BASIC", new Profile("BASIC", "urn:cen.eu:en16931:2017#compliant#urn:factur-x.eu:1p0:basic")},
 			{"EN16931", new Profile("EN16931", "urn:cen.eu:en16931:2017")},
 			{"EXTENDED", new Profile("EXTENDED", "urn:cen.eu:en16931:2017#conformant#urn:factur-x.eu:1p0:extended")},
-			{"XRECHNUNG", new Profile("XRECHNUNG", "urn:cen.eu:en16931:2017#compliant#urn:xoev-de:kosit:standard:xrechnung_"+((Year.now().getValue()<=2020)?"1.2":"2.0"))} //intentionally switch to XRechnung 2.0 on 01.01.2021
+			{"XRECHNUNG", new Profile("XRECHNUNG", "urn:cen.eu:en16931:2017#compliant#urn:xoev-de:kosit:standard:xrechnung_2.0")} //switched to XRechnung 2.0 in 2021
 
 	}).collect(Collectors.toMap(data -> (String) data[0], data -> (Profile) data[1]));
 	static Map<String, Profile> zf1Map = Stream.of(new Object[][]{