Merge pull request #457 from wkk91193/fixing-formular-cell-evaluation-npe

Fixing Apache POI issue - Formula Cell evaluation nullpointer exception

fineract-provider/src/main/java/org/apache/fineract/infrastructure/bulkimport/importhandler/ImportHandlerUtils.java

@@ -63,7 +63,12 @@ public class ImportHandlerUtils {
         FormulaEvaluator eval = row.getSheet().getWorkbook().getCreationHelper().createFormulaEvaluator();
         if(c.getCellType() == Cell.CELL_TYPE_FORMULA) {
             if(eval!=null) {
-                CellValue val = eval.evaluate(c);
+                CellValue val = null;
+                try {
+                    val = eval.evaluate(c);
+                } catch (NullPointerException npe) {
+                    return null;
+                }
                 return ((Double)val.getNumberValue()).longValue();
             }
         }
@@ -85,7 +90,13 @@ public class ImportHandlerUtils {
         FormulaEvaluator eval = row.getSheet().getWorkbook().getCreationHelper().createFormulaEvaluator();
         if(c.getCellType() == Cell.CELL_TYPE_FORMULA) {
             if (eval!=null) {
-                CellValue val = eval.evaluate(c);
+                CellValue val = null;
+                try {
+                    val = eval.evaluate(c);
+                } catch(NullPointerException npe) {
+                    return null;
+                }
+
                 String res = trimEmptyDecimalPortion(val.getStringValue());
                 if (res!=null) {
                     if (!res.equals("")) {
@@ -136,7 +147,12 @@ public class ImportHandlerUtils {
             FormulaEvaluator eval = row.getSheet().getWorkbook().getCreationHelper().createFormulaEvaluator();
             if(c.getCellType() == Cell.CELL_TYPE_FORMULA) {
                 if(eval!=null) {
-                    CellValue val = eval.evaluate(c);
+                    CellValue val = null;
+                    try {
+                        val = eval.evaluate(c);
+                    } catch (NullPointerException npe) {
+                        return false;
+                    }
                     return val.getBooleanValue();
                 }
                 return false;
@@ -158,7 +174,12 @@ public class ImportHandlerUtils {
             FormulaEvaluator eval = row.getSheet().getWorkbook().getCreationHelper().createFormulaEvaluator();
             if(c.getCellType() == Cell.CELL_TYPE_FORMULA) {
                 if(eval!=null) {
-                   CellValue val = eval.evaluate(c);
+                    CellValue val = null;
+                    try {
+                        val = eval.evaluate(c);
+                    } catch (NullPointerException npe) {
+                        return null;
+                    }
                     return ((Double)val.getNumberValue()).intValue();
                 }
                 return null;
@@ -176,7 +197,12 @@ public class ImportHandlerUtils {
         FormulaEvaluator eval = row.getSheet().getWorkbook().getCreationHelper().createFormulaEvaluator();
         if(c.getCellType() == Cell.CELL_TYPE_FORMULA) {
                 if (eval!=null) {
-                    CellValue val = eval.evaluate(c);
+                    CellValue val = null;
+                    try {
+                        val = eval.evaluate(c);
+                    } catch (NullPointerException npe) {
+                        return 0.0;
+                    }
                     return val.getNumberValue();
                 }else {
                     return 0.0;