Java Database Connectivity (JDBC)

All.

my jdbc code properly retrieves data from mysql. However, I am getting rows of null values.
My jsp page(pollQueue.jsp) connects to this pollQueue(String type) method. Any ideas why I get the results, then followed by rows of null values? I even added a function to remove the nulls, but now I get extra rows.

public Hashtable<String, String> pollQueue(String type)
	{
		
		//System.out.println("Styarting methoid");
	  // Use this method to return a Hashtable filled with
	  // one or more records.  You can specified a 'filter'
	  // for finding records and 'orderBy' will determine the sort order.
	  Hashtable<String, String> retVal = new Hashtable<String, String>();
	  retVal.put("ROWCOUNT", "0");
	  retVal.put("COLUMNCOUNT", "0");
	  retVal.put("STATUS", "EMPTY");
	  
	  
	  // Query by primary key.
	  boolean rc = dbWorker.open();
	  if(rc == false)
	  {
	     isDBError = true;
	     dbErrorMsg = dbWorker.errorMsg;
	     return retVal;
	  }
	  
	  
	  try   // Remember to put all DB code inside a try block!
	  {
	     // 1) Get a connection.
	     Connection conn = dbWorker.getConnection();
	     
	     
	     
	   
	     //String sql = "select * from job where year = ? or ? and month = ? or ? and dayofweek= ? or ?";
	     String sql = "select * from queue Where priority = " + "'" + type + "'";
	     
	     // 2) Create a statement.
	  Statement st = conn.createStatement();
	  st.executeQuery(sql);
	     //PreparedStatement st = conn.prepareStatement(sql);
	     // 3) Build your SQL.
	    
	      //System.out.println("DEBUG SQL =" + sql);
	   
	   
	     
	     
	     
	      // 4) Get a result set.
	      
	      //ResultSet rs = st.executeQuery(sql);
	      ResultSet rs = st.executeQuery(sql);
	      int rowCount = 0;

	      // 5) Move to first record (and then next) record.
	      while(rs.next())
	      {
	         // 6) Retrieve fields into your properties using JDBC get??? methods.
	       
	        
	        String thisEntryDate = rs.getString("entrydate");
	        //String thisLogger = rs.getString("logger");
	        String thisPriority = rs.getString("priority");
	        String thisMessage = rs.getString("message");
	        

	         // 7) Ensure non-null String fields with dbWorker.safeStr()
	         thisEntryDate = dbWorker.safeStr(thisEntryDate);
	         //thisLogger = dbWorker.safeStr(thisLogger);
	         thisPriority = dbWorker.safeStr(thisPriority);
	         thisMessage= dbWorker.safeStr(thisMessage);
	         
	         if(thisEntryDate == null){
	        	 thisEntryDate = "";
	         }
	         /*if(thisLogger == null){
	        	 thisLogger = "";
	         }*/
	         if(thisPriority == null){
	        	 thisPriority = "";
	         }
	         if(thisMessage == null){
	        	 thisMessage = "";
	         }
	         
	         
	         // 8) Load this row into our Hashtable.
	         // The convention here is to pack each row's column name with an ID
	         // indicating the row.  "ProjectId" + "0" = "ProjectId0" ===mapped to===> Value

	         // Put this record into Hashtable.
	         retVal.put("entrydate" + rowCount, "" + thisEntryDate);
	         //retVal.put("logger" + rowCount, "" + thisLogger);
	         retVal.put("priority" + rowCount, "" + thisPriority);
	         retVal.put("message" + rowCount, "" + thisMessage);
	         //System.out.println(thisEntryDate + thisPriority + thisMessage);

	         rowCount++;
	      }
	      // 9) Close all DB objects.
	      rs.close();
	      st.close();

	      dbWorker.close();  // Connection too.

	      // Write info to our hashtable--Since this container hold virtually anything,
	      // you can put in whatever 'metadata' you want about your result set.
	      retVal.put("ROWCOUNT", "" + rowCount);
	      retVal.put("COLUMNCOUNT", "23");
	      retVal.put("STATUS", "OK");
	   }
	   catch(SQLException e)
	   {
	      System.out.println("Error in pollQueue (" + e.getMessage() + ")");
	      retVal.put("STATUS", "ERROR");
	   }
	   return retVal;
	}

Here is the jsp page:

<%

	String type = request.getParameter("type");
	Hashtable<String, String> queue = controller.pollQueue(type);
	if(queue != null){
	out.println("Records: " + queue.get("ROWCOUNT") + "<br>");
		for(int i = 0;i<queue.size();i++){
		String date = queue.get("entrydate" + i);
		String priority = queue.get("priority" + i);
		String message = queue.get("message" + i);
		
		if(date == null){
			date = "";
		}
		if(priority == null){
			priority = "";
		}
		if(message == null){
			message = "";
		}
		
		//String date = queue.get("entrydate" + i);
			out.println(date + " | " /*+ queue.get("logger" + i) + " | " */+ priority + " | " + message + "<BR>");
	}
	
	}else{
		out.println("No results for selected logging category.");
	}
%>