'java.lang.IllegalArgumentException: Attempting to write a row[1] in the range [0,1] that is already written to disk

While Download xlsx using apache poi version 3.15 in ubuntu it is giving me:

java.lang.IllegalArgumentException: Attempting to write a row[1] in the range [0,1] that is already written to disk at org.apache.poi.xssf.streaming.SXSSFSheet.createRow(SXSSFSheet.java:133),
at org.apache.poi.xssf.streaming.SXSSFSheet.createRow(SXSSFSheet.java:62)

String fileName = "myDownloads"+".xlsx";
String sourceFolderPath = "/home/user/sampleFile/";
FileInputStream fileInputStream = new 
FileInputStream(sourceFolderPath+"SampleFile.xlsx");
XSSFWorkbook wb_template = new XSSFWorkbook(fileInputStream);
fileInputStream.close();
String destinationFolderPath = "/home/user/downloads";
File dir = new File(destinationFolderPath);
if (!dir.exists()) {
    dir.mkdirs();
}
SXSSFWorkbook workbook = new SXSSFWorkbook(wb_template);
workbook.setCompressTempFiles(true);
SXSSFSheet workSheet = (SXSSFSheet) workbook.getSheetAt(0);
workSheet.setRandomAccessWindowSize(100000);
SXSSFSheet workSheet1 = (SXSSFSheet) workbook.getSheetAt(1);
workSheet1.setRandomAccessWindowSize(100000);
List<Student> studentList = studnetDao.getStudentListByName("kumar");
if(CollectionUtils.isNotEmpty(studentList)) {
    Integer rowIndex = 1;
    for(Student s : studentList) {
        Row row = workSheet.getRow(rowIndex);
        if (row == null) {
            row = workSheet.createRow(rowIndex); 
        }
    }
}
javaapache-poi


Solution 1:[1]

The stream mode doesn't support overriding or accessing existing rows. you're using a template to create your workbook that write the second row automatically.

To solve this, you can use simple XSSWorkbook to load the template and remove the existing ones; then switch to stream mode.

Your code will be like this:

// -- create XSSFWorkbook from the template
XSSFWorkbook xssfworkbook = new XSSFWorkbook(wb_template);
XSSFSheet xssfSheet = xssfWorkbook.getSheetAt(1);
xssfSheet.removeRow(xssfSheet.getRow(1));
// -- after removing the first row; switch to stream mode. now we can start from index=1
SXSSFWorkbook workbook = new SXSSFWorkbook(xssfworkbook);
workbook.setCompressTempFiles(true);
SXSSFSheet workSheet = (SXSSFSheet) workbook.getSheetAt(0);
workSheet.setRandomAccessWindowSize(100000);
SXSSFSheet workSheet1 = (SXSSFSheet) workbook.getSheetAt(1);
workSheet1.setRandomAccessWindowSize(100000);
List<Student> studentList = studnetDao.getStudentListByName("kumar");
if(CollectionUtils.isNotEmpty(studentList)) {
    Integer rowIndex = 1;
    for(Student s : studentList) {
        Row row = workSheet.getRow(rowIndex);
        if (row == null) {
            row = workSheet.createRow(rowIndex); 
        }
    }
}

Solution 2:[2]

Please have a look at this constructor arguments enter image description here

XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(exportExcelTo));
SXSSFWorkbook sxssfWorkbook = new SXSSFWorkbook(workbook, -1, Boolean.FALSE, Boolean.TRUE);

This one may help Apache POI getRow() returns null and .createRow fails

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Dharman
Solution 2 Ziaullhaq Savanur

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