Be more lenient about new lines in CSV.

http://gviz-reviews.appspot.com/7003

Author: nimrodtalmon77

src/main/java/com/google/visualization/datasource/util/CsvDataSourceHelper.java

@@ -102,6 +102,14 @@ public static DataTable read(Reader reader, List<ColumnDescription> columnDescri
     String[] line;
     boolean firstLine = true;
     while ((line = csvReader.readNext()) != null) {
+      // Being lenient about newlines.
+      // The reader reads them as lines with
+      // one element ("").
+      if ((line.length == 1) && (line[0].equals(""))) {
+        // This is a new line.
+        continue;
+      }
+
       if ((columnDescriptions != null) && (line.length != columnDescriptions.size())) {
         throw new CsvDataSourceException(
             ReasonType.INTERNAL_ERROR,

src/test/java/com/google/visualization/datasource/util/CsvDataSourceHelperTest.java

@@ -67,7 +67,7 @@ public void testRead() throws IOException, CsvDataSourceException {
     assertEquals(0, dataTable.getNumberOfRows());
 
     // Null TableDescription.
-    reader = new StringReader("1,2,3\n4,5,6");
+    reader = new StringReader("\n\n\n1,2,3\n\n4,5,6\n\n\n\n\n");
     dataTable = CsvDataSourceHelper.read(reader, null, false);
     assertEquals(2, dataTable.getNumberOfRows());
     assertEquals(3, dataTable.getNumberOfColumns());