Replace table column value in Apache POI

[John de Asis]

I am using apache POI 3.7. I am trying to replace the value of a table column in a word document (docx). However, what I have done is it keeps appending the value of the current value in the document. But if a table column value is null, it places the value. Can you give me some thoughts how to resolve this. Below is the code I have done so far.

Thanks in advance.

package test.doc;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;

import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFTable;
import org.apache.poi.xwpf.usermodel.XWPFTableCell;
import org.apache.poi.xwpf.usermodel.XWPFTableRow;

public class POIDocXTableTest {
	
	public static void main(String[] args)throws IOException {
		String fileName = "C:\\Test.docx";
		InputStream fis = new FileInputStream(fileName);
		XWPFDocument document = new XWPFDocument(fis);
		List<XWPFParagraph> paragraphs = document.getParagraphs();
		
		for (int x=0; x<paragraphs.size();x++)
		{
			XWPFParagraph paragraph = paragraphs.get(x);
			System.out.println(paragraph.getParagraphText());
		}
		List<XWPFTable> tables = document.getTables();
		for (int x=0; x<tables.size();x++)
		{
			XWPFTable table = tables.get(x);
			List<XWPFTableRow> tableRows = table.getRows();
			for (int r=0; r<tableRows.size();r++)
			{
				System.out.println("Row "+ (r+1)+ ":");
				XWPFTableRow tableRow = tableRows.get(r);
				List<XWPFTableCell> tableCells = tableRow.getTableCells();
				for (int c=0; c<tableCells.size();c++)
				{
					System.out.print("Column "+ (c+1)+ ": ");
					XWPFTableCell tableCell = tableCells.get(c);
					String tableCellVal = tableCell.getText();
					if ((c+1)==2){
						
						if (tableCellVal!=null){
							if (tableCellVal.length()>0){
								 char c1 = tableCellVal.charAt(0);
								 String s2 = "-TEST";
								 char c2 = s2.charAt(0);
								 String test = tableCell.getText().replace(tableCellVal,s2);
								 tableCell.setText(test);//SHOULD BE REPLACE VALUES
							}else{
								//tableCell.setText("NULL");
							}
						}
					}
					System.out.println("tableCell.getText(" + (c) + "):" + tableCellVal);
				}
			}
			System.out.println("\n");
		}
		OutputStream out = new FileOutputStream(fileName);
		document.write(out);
		out.close();
	}
}