fixed 3rd currency case

office-alexander-logistics-app/src/main/java/com/alexanderlogistics/OPListExportAdapter.java

@@ -263,8 +263,13 @@ public class OPListExportAdapter extends POIFindReplaceAdapter {
             for (ItemCollection invoice : invoices) {
                 String currency = invoice.getItemValueString("invoice.currency");
                 Double saldo = currencyCatSum.get(currency);
-                saldo = InvoiceUtil.round(saldo + invoice.getItemValueDouble("invoice.saldo"));
+                if (saldo == null) {
-                currencyCatSum.put(currency, saldo);
+                    logger.warning(
+                            "Failed to resolve currency '" + currency + "' for invoice " + invoice.getUniqueID());
+                } else {
+                    saldo = InvoiceUtil.round(saldo + invoice.getItemValueDouble("invoice.saldo"));
+                    currencyCatSum.put(currency, saldo);
+                }
             }
             int i = 0;
             for (String cur : currencyList) {
@@ -303,8 +308,13 @@ public class OPListExportAdapter extends POIFindReplaceAdapter {
                 // calculate summary
                 String currency = invoice.getItemValueString("invoice.currency");
                 Double saldo = currencySum.get(currency);
-                saldo = InvoiceUtil.round(saldo + total);
+                if (saldo == null) {
-                currencySum.put(currency, saldo);
+                    logger.warning(
+                            "Failed to resolve currency '" + currency + "' for invoice " + invoice.getUniqueID());
+                } else {
+                    saldo = InvoiceUtil.round(saldo + total);
+                    currencySum.put(currency, saldo);
+                }
 
                 // Saldo in richtige Spalte setzen...
                 int currencyColIndex = currencyList.indexOf(currency);
@@ -312,8 +322,14 @@ public class OPListExportAdapter extends POIFindReplaceAdapter {
 
                 // Gesamtsumme berechnen
                 Double totalSaldo = currencyTotalSum.get(currency);
-                totalSaldo = InvoiceUtil.round(totalSaldo + total);
+                if (totalSaldo == null) {
-                currencyTotalSum.put(currency, totalSaldo);
+                    logger.warning(
+                            "Failed to resolve totalSaldo for currency '" + currency + "'  invoice "
+                                    + invoice.getUniqueID());
+                } else {
+                    totalSaldo = InvoiceUtil.round(totalSaldo + total);
+                    currencyTotalSum.put(currency, totalSaldo);
+                }
 
                 row.getCell(5 + currencyList.size()).setCellValue(invoice.getItemValueString("$workflowstatus"));