Apache POI - How to copy tables from one docx to another docx

XWPFTable newTbl = output_doc.insertNewTbl(cursor);
copyTable(table, newTbl);

and the copyTable() method

private void copyTable(XWPFTable source, XWPFTable target) {
    target.getCTTbl().setTblPr(source.getCTTbl().getTblPr());
    target.getCTTbl().setTblGrid(source.getCTTbl().getTblGrid());
    for (int r = 0; r<source.getRows().size(); r++) {
        XWPFTableRow targetRow = target.createRow();
        XWPFTableRow row = source.getRows().get(r);
        targetRow.getCtRow().setTrPr(row.getCtRow().getTrPr());
        for (int c=0; c<row.getTableCells().size(); c++) {
            //newly created row has 1 cell
            XWPFTableCell targetCell = c==0 ? targetRow.getTableCells().get(0) : targetRow.createCell();
            XWPFTableCell cell = row.getTableCells().get(c);
            targetCell.getCTTc().setTcPr(cell.getCTTc().getTcPr());
            XmlCursor cursor = targetCell.getParagraphArray(0).getCTP().newCursor();
            for (int p = 0; p < cell.getBodyElements().size(); p++) {
                IBodyElement elem = cell.getBodyElements().get(p);
                if (elem instanceof XWPFParagraph) {
                    XWPFParagraph targetPar = targetCell.insertNewParagraph(cursor);
                    cursor.toNextToken();
                    XWPFParagraph par = (XWPFParagraph) elem;
                    copyParagraph(par, targetPar);
                } else if (elem instanceof XWPFTable) {
                    XWPFTable targetTable = targetCell.insertNewTbl(cursor);
                    XWPFTable table = (XWPFTable) elem;
                    copyTable(table, targetTable);
                    cursor.toNextToken();
                }
            }
            //newly created cell has one default paragraph we need to remove
            targetCell.removeParagraph(targetCell.getParagraphs().size()-1);
        }
    }
    //newly created table has one row by default. we need to remove the default row.
    target.removeRow(0);
}

the copyParagraph()

private void copyParagraph(XWPFParagraph source, XWPFParagraph target) {
    target.getCTP().setPPr(source.getCTP().getPPr());
    for (int i=0; i<source.getRuns().size(); i++ ) {
        XWPFRun run = source.getRuns().get(i);
        XWPFRun targetRun = target.createRun();
        //copy formatting
        targetRun.getCTR().setRPr(run.getCTR().getRPr());
        //no images just copy text
        targetRun.setText(run.getText(0));
    }
}

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