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POjava.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has been committed
 

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  1. POjava.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has been committed
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    <p>This method throws </p> <blockquote> <p>java.lang.IllegalStateException: Cannot forward after response has been committed</p> </blockquote> <p>and I am unable to spot the problem. Any help?</p> <pre><code> int noOfRows = Integer.parseInt(request.getParameter("noOfRows")); String chkboxVal = ""; // String FormatId=null; Vector vRow = new Vector(); Vector vRow1 = new Vector(); String GroupId = ""; String GroupDesc = ""; for (int i = 0; i &lt; noOfRows; i++) { if ((request.getParameter("chk_select" + i)) == null) { chkboxVal = "notticked"; } else { chkboxVal = request.getParameter("chk_select" + i); if (chkboxVal.equals("ticked")) { fwdurl = "true"; Statement st1 = con.createStatement(); GroupId = request.getParameter("GroupId" + i); GroupDesc = request.getParameter("GroupDesc" + i); ResultSet rs1 = st1 .executeQuery("select FileId,Description from cs2k_Files " + " where FileId like 'M%' and co_code = " + ccode); ResultSetMetaData rsm = rs1.getMetaData(); int cCount = rsm.getColumnCount(); while (rs1.next()) { Vector vCol1 = new Vector(); for (int j = 1; j &lt;= cCount; j++) { vCol1.addElement(rs1.getObject(j)); } vRow.addElement(vCol1); } rs1 = st1 .executeQuery("select FileId,NotAllowed from cs2kGroupSub " + " where FileId like 'M%' and GroupId = '" + GroupId + "'" + " and co_code = " + ccode); rsm = rs1.getMetaData(); cCount = rsm.getColumnCount(); while (rs1.next()) { Vector vCol2 = new Vector(); for (int j = 1; j &lt;= cCount; j++) { vCol2.addElement(rs1.getObject(j)); } vRow1.addElement(vCol2); } // throw new Exception("test"); break; } } } if (fwdurl.equals("true")) { // throw new Exception("test"); // response.sendRedirect("cs2k_GroupCopiedUpdt.jsp") ; request.setAttribute("GroupId", GroupId); request.setAttribute("GroupDesc", GroupDesc); request.setAttribute("vRow", vRow); request.setAttribute("vRow1", vRow1); getServletConfig().getServletContext().getRequestDispatcher( "/GroupCopiedUpdt.jsp").forward(request, response); } </code></pre>
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    1. COIts difficult to see like this, but it seems you've already send some output before your forward. Could you please print the full code and check if you don't have any filter in place ?
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