fix: avoid returning nulls to prevent later NPE

mlopezFC · javier-godoy · commit 4f9b0292550b · 2024-11-28T09:45:18.000-03:00
Fixes #163
diff --git a/src/main/java/com/flowingcode/vaadin/addons/gridexporter/BaseStreamResourceWriter.java b/src/main/java/com/flowingcode/vaadin/addons/gridexporter/BaseStreamResourceWriter.java
@@ -162,7 +162,7 @@ private String renderCellTextContent(Grid<T> grid, Column<T> column, String colu
       }
     }
 
-    return headerOrFooter;
+    return headerOrFooter==null?"":headerOrFooter;
   }
 
   protected Stream<T> obtainDataStream(DataProvider<T, ?> dataProvider) {

Original file line number	Diff line number	Diff line change
`@@ -162,7 +162,7 @@ private String renderCellTextContent(Grid<T> grid, Column<T> column, String colu`
`162`	`162`	`}`
`163`	`163`	`}`
`164`	`164`
`165`		`- return headerOrFooter;`
	`165`	`+ return headerOrFooter==null?"":headerOrFooter;`
`166`	`166`	`}`
`167`	`167`
`168`	`168`	`protected Stream<T> obtainDataStream(DataProvider<T, ?> dataProvider) {`