Recordset putting into a vector

Hi. I have been struggling with this piece of code. What I am trying to do is, doing a "select all" query on a table and building a Category object from each record. Then I am putting each object into a vector and return the vector. But I keep getting a null pointer exceprion. Can anyone pls figure out whats wrong with this code?.
Thanks a lot.
private Vector doQuery(String sqlQuery)
          Vector list=null;
          Statement statement = null;
          ResultSet resultSet = null;
          Category c = new Category ();
          try{
               statement = trManager.getDBConnection().createStatement();
               resultSet = statement.executeQuery(sqlQuery);
               if(resultSet!=null)
                    while(resultSet.next())
                         int i =1;
                         c.setCategoryCode(resultSet.getString(i++));
                         c.setCategoryName(resultSet.getString(i++));                              list.addElement(c);
          catch(SQLException e)
               System.out.println(e);
          finally
               trManager.closeResultSet(resultSet);
               trManager.closeStatement(statement);
               return list;

what is the query that ou are executed
what is the no of rows expected from the query.
If it is too large then the possible cause for EOF
exception may be lack of memory/I doubt that this relates to OOM.... also the next() will not iterate over null returns so....
Please post corrected code and the excption stack for clarity... :)

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need help in doing the following.-
alright i click a skill on industryskills Jlist and press the add button and it'll be added to the applicantskills Jlist. how do i further store this data that i added onto the applicantskills JList into a vector.
here are the codes:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import java.text.*;
import java.util.*;
import java.util.Vector;
import javax.swing.JScrollPane.*;
//import javax.swing.event.ListSelectionListener;
public class Employment extends JFrame
        //declare class variables
        private JPanel jpApplicant, jpEverything,jpWEST, jpCENTRE, jpEAST, jpAddEditDelete,
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                                   jpEmptyPanelForDisplayPurposes;
        private JLabel jlblApplicantForm, jlblAppList, jlblName, jlblPhone,
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                                   jlblNotes, jlblApplicantSkills, jlblIndustrySkills,
                                   jlblBlank1, jlblBlank2, ApplicantListLabel,
                                   NotesListLabel, ApplicantSkillsLabel,
                                   IndustrySkillsLabel,jlblEmptyLabelForDisplayPurposes;
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                                        jbtnAdd2, jbtnRemove;
        private JTextField jtfName, jtfPhone, jtfCurrentSalary, jtfPassword,
                                           jtfDesiredSalary;
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        private DefaultListModel /*listModel,*/listModel2;
          String name,password,phone,currentsalary,desiredsalary,textareastuff,NotesText;
          String selectedname;
        final JTextArea Noteslist= new JTextArea();;
        DefaultListModel listModel = new DefaultListModel();
        JList ApplicantSkillsList = new JList(listModel);
       private ListSelectionModel listSelectionModel;
        JList ApplicantList, /*ApplicantSkillsList,*/ IndustrySkillsList;
        //protected JTextArea NotesList;
                //Vector details = new Vector();
              Vector<StoringData> details = new Vector<StoringData>();
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                f.setVisible(true);
                f.setDefaultCloseOperation(EXIT_ON_CLOSE);
                f.setResizable(false);
            }//end of main
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                        setSize(800,470);
                        setTitle("E-commerce Placement Agency");
                              Font listfonts = new Font("TimesRoman", Font.BOLD, 12);
                        JPanel topPanel = new JPanel();
                        topPanel.setLayout( new BorderLayout() );
                        getContentPane().add( topPanel );
                        createPage1();
                        createPage2();
                        createPage3();
                        createPage4();
                        tabbedPane = new JTabbedPane();
                        tabbedPane.addTab( "Applicant", panel1 );
                        tabbedPane.addTab( "Job Order", panel2 );
                        tabbedPane.addTab( "Skill", panel3 );
                        tabbedPane.addTab( "Company", panel4 );
                        topPanel.add( tabbedPane, BorderLayout.CENTER );
        public void createPage1()//PAGE 1
             /*******************TOP PART********************/
                        panel1 = new JPanel();
                        panel1.setLayout( new BorderLayout());
                              jpBottomArea = new JPanel();
                              jpBottomArea.setLayout(new BorderLayout());
                        jpApplicant= new JPanel();
                        jpApplicant.setLayout(new BorderLayout());
                        Font bigFont = new Font("TimesRoman", Font.BOLD,24);
                        jpApplicant.setBackground(Color.lightGray);
                        jlblApplicantForm = new JLabel("\t\t\t\tAPPLICANT FORM ");
                        jlblApplicantForm.setFont(bigFont);
                        jpApplicant.add(jlblApplicantForm,BorderLayout.EAST);
                        panel1.add(jpApplicant,BorderLayout.NORTH);
                        panel1.add(jpBottomArea,BorderLayout.CENTER);
       /********************************EMPTY PANEL FOR DISPLAY PURPOSES*************************/
                           jpEmptyPanelForDisplayPurposes = new JPanel();
                           jlblEmptyLabelForDisplayPurposes = new JLabel(" ");
                           jpEmptyPanelForDisplayPurposes.add(jlblEmptyLabelForDisplayPurposes);
                           jpBottomArea.add(jpEmptyPanelForDisplayPurposes,BorderLayout.NORTH);
       /*****************************************WEST*********************************/
                        jpWEST = new JPanel();
                        jpWEST.setLayout( new BorderLayout());
                        //Applicant List
                              listModel2=new DefaultListModel();
                              ApplicantList = new JList(listModel2);
                            listSelectionModel = ApplicantList.getSelectionModel();
                            listSelectionModel.addListSelectionListener(new SharedListSelectionHandler());
                            JScrollPane scrollPane3 = new JScrollPane(ApplicantList);
                              ApplicantList.setPreferredSize(new Dimension(20,40));
                             scrollPane3.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
                            scrollPane3.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
                        ApplicantListLabel = new JLabel( "Applicant List:");
                        jpWEST.add(ApplicantListLabel,"North");
                        jpWEST.add(scrollPane3,"Center");
                        jpBottomArea.add(jpWEST,BorderLayout.WEST);
                        /*********CENTRE*********/
                        jpCENTRE = new JPanel();
                        jpCENTRE.setLayout(new GridLayout(2,1));
                        jpCentreTOP = new JPanel();
                        jpBottomArea.add(jpCENTRE,BorderLayout.CENTER);
                        jpCENTRE.add(jpCentreTOP);
                        jpCentreTOP.setLayout(new GridLayout(6,2));
                          //Creating labels and textfields
                        jlblName = new JLabel( "Name:");
                        jlblBlank1 = new JLabel ("");
                        jtfName = new JTextField(18);
                        jlblBlank2 = new JLabel("");
                        jlblPhone = new JLabel("Phone:");
                        jlblCurrentSalary = new JLabel("Current Salary:");
                        jtfPhone = new JTextField(13);
                        jtfCurrentSalary = new JTextField(7);
                        jlblPassword = new JLabel("Password:");
                        jlblDesiredSalary = new JLabel("Desired Salary:");
                        jtfPassword = new JTextField(13);
                        jtfDesiredSalary = new JTextField(6);
                          //Add labels and textfields to panel
                        jpCentreTOP.add(jlblName);
                        jpCentreTOP.add(jlblBlank1);
                        jpCentreTOP.add(jtfName);
                        jpCentreTOP.add(jlblBlank2);
                        jpCentreTOP.add(jlblPhone);
                        jpCentreTOP.add(jlblCurrentSalary);
                        jpCentreTOP.add(jtfPhone);
                        jpCentreTOP.add(jtfCurrentSalary);
                        jpCentreTOP.add(jlblPassword);
                        jpCentreTOP.add(jlblDesiredSalary);
                        jpCentreTOP.add(jtfPassword);
                        jpCentreTOP.add(jtfDesiredSalary);
                        //Noteslist
                        jpCentreBOT = new JPanel();
                        jpCentreBOT.setLayout( new BorderLayout());
                        jpCENTRE.add(jpCentreBOT);
                        jpBlank1 = new JPanel();
                         //     Noteslist = new JTextArea(/*Document doc*/);
                        JScrollPane scroll3=new JScrollPane(Noteslist);
                            scroll3.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
                            scroll3.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
                        NotesListLabel = new JLabel( "Notes:");
                        jpCentreBOT.add(NotesListLabel,"North");
                        jpCentreBOT.add(scroll3,"Center");
                        jpCentreBOT.add(jpBlank1,"South");
                        jpBottomArea.add(jpCENTRE,BorderLayout.CENTER);
                        /**********EAST**********/
                        //Applicant Skills Panel
                        //EAST ==> TOP
                        jpEAST = new JPanel();
                        jpEAST.setLayout( new BorderLayout());
                        jpEastTOP = new JPanel();
                        jpEastTOP.setLayout( new BorderLayout());
                        ApplicantSkillsLabel = new JLabel( "Applicant Skills");
                        JScrollPane scrollPane1 = new JScrollPane(ApplicantSkillsList);
                           scrollPane1.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
                          scrollPane1.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
                        ApplicantSkillsList.setVisibleRowCount(6);
                        jpEastTOP.add(ApplicantSkillsLabel,"North");
                        jpEastTOP.add(scrollPane1,"Center");
                        jpEAST.add(jpEastTOP,BorderLayout.NORTH);
                        jpBottomArea.add(jpEAST,BorderLayout.EAST);
                        //Add & Remove Buttons
                        //EAST ==> CENTRE
                        jpEastCENTRE = new JPanel();
                        jpEAST.add(jpEastCENTRE,BorderLayout.CENTER);
                        jbtnAdd2 = new JButton("Add");
                        jbtnRemove = new JButton("Remove");
                        //add buttons to panel
                        jpEastCENTRE.add(jbtnAdd2);
                        jpEastCENTRE.add(jbtnRemove);
                        //add listener to button
                       jbtnAdd2.addActionListener(new Add2Listener());
                       jbtnRemove.addActionListener(new RemoveListener());
                        //Industry Skills Panel
                        //EAST ==> BOTTOM
                        jpEastBOT = new JPanel();
                        jpEastBOT.setLayout( new BorderLayout());
                       String[] data = {"Access97", "Basic Programming",
                       "C++ Programming", "COBOL Programming",
                       "DB Design", "Fortran programming"};
                       IndustrySkillsList = new JList(data);
                       JScrollPane scrollPane = new JScrollPane(IndustrySkillsList);
                       scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
                       scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
                       IndustrySkillsLabel = new JLabel( "Industry Skills:");
                       jpEastBOT.add(IndustrySkillsLabel,"North");
                       jpEastBOT.add(scrollPane,"Center");
                       jpEAST.add(jpEastBOT,BorderLayout.SOUTH);
                        //BOTTOM
                        jpAddEditDelete= new JPanel();
                        jbtnAdd1=       new JButton("Add");
                        jbtnEdit=       new JButton("Edit");
                        jbtnDelete=     new JButton("Delete");
                        jbtnSave=       new JButton("Save");
                        jbtnCancel=     new JButton("Cancel");
                        jpAddEditDelete.add(jbtnAdd1);
                        jpAddEditDelete.add(jbtnEdit);
                        jpAddEditDelete.add(jbtnDelete);
                        jpAddEditDelete.add(jbtnSave);
                        jpAddEditDelete.add(jbtnCancel);
                           jbtnEdit.addActionListener(new EditListener());
                           jbtnDelete.addActionListener(new DeleteListener());
                            jbtnEdit.addActionListener(new EditListener());
                        jbtnAdd1.addActionListener(new Add1Listener());
                        jbtnCancel.addActionListener(new CancelListener());
                        jpBottomArea.add(jpAddEditDelete,BorderLayout.SOUTH);
        public void createPage2()//PAGE 2
                panel2 = new JPanel();
                panel2.setLayout( new GridLayout(1,1) );
                panel2.add( new JLabel( "Sorry,under construction" ) );
        public void createPage3()//PAGE 3
                panel3 = new JPanel();
                panel3.setLayout( new GridLayout( 1, 1 ) );
                panel3.add( new JLabel( "Sorry,under construction" ) );
        public void createPage4()//PAGE 4
                panel4 = new JPanel();
                panel4.setLayout( new GridLayout( 1, 1 ) );
                panel4.add( new JLabel( "Sorry,under construction" ) );
        public class Add1Listener implements ActionListener
        public void actionPerformed(ActionEvent e)
                name = jtfName.getText();
                password = jtfPassword.getText();
                phone = jtfPhone.getText();
                currentsalary = jtfCurrentSalary.getText();
                int i= Integer.parseInt(currentsalary);
                desiredsalary = jtfDesiredSalary.getText();
                int j= Integer.parseInt(desiredsalary);
                   StoringData person = new StoringData(name,password,phone,i,j);
               //     StoringData AppSkillsList = new StoringData(listModel);
                details.add(person);
             //     details.add(AppSkillsList);
              listModel2.addElement(name);
                jtfName.setText("");
                jtfPassword.setText("");
                jtfPhone.setText("");
                jtfCurrentSalary.setText("");
                jtfDesiredSalary.setText("");
//                NotesList.setText("");
        public class Add2Listener implements ActionListener
                public void actionPerformed(ActionEvent e)
                       String temp1;
                       temp1 = (String)IndustrySkillsList.getSelectedValue();
                       listModel.addElement(temp1);
        public class RemoveListener implements ActionListener
                public void actionPerformed(ActionEvent e)
                        int index = ApplicantSkillsList.getSelectedIndex();
                            listModel.remove(index);
        public class EditListener implements ActionListener
                public void actionPerformed(ActionEvent e)
                        jtfName.setEditable(true);
                        jtfPassword.setEditable(true);
                        jtfPhone.setEditable(true);
                        jtfCurrentSalary.setEditable(true);
                        jtfDesiredSalary.setEditable(true);
                        Noteslist.setEditable(true);
                        jbtnAdd2.setEnabled(true);
                        jbtnRemove.setEnabled(true);
                        jbtnSave.setEnabled(true);
                        jbtnCancel.setEnabled(true);
        public class DeleteListener implements ActionListener
                public void actionPerformed(ActionEvent e)
                    int index1 = ApplicantList.getSelectedIndex();
                        listModel2.remove(index1);
        public class SaveListener implements ActionListener
                public void actionPerformed(ActionEvent e)
        public class CancelListener implements ActionListener
                public void actionPerformed(ActionEvent e)
                jtfName.setText("");
                jtfPassword.setText("");
                jtfPhone.setText("");
                jtfCurrentSalary.setText("");
                jtfDesiredSalary.setText("");
        public class SharedListSelectionHandler implements ListSelectionListener
        public void valueChanged(ListSelectionEvent e)
         selectedname =ApplicantList.getSelectedValue().toString();
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         jtfName.setEditable(false);
         jtfPassword.setEditable(false);
         jtfPhone.setEditable(false);
         jtfCurrentSalary.setEditable(false);
         jtfDesiredSalary.setEditable(false);
         Noteslist.setEditable(false);
         jbtnAdd2.setEnabled(false);
         jbtnRemove.setEnabled(false);
         jbtnSave.setEnabled(false);
         jbtnCancel.setEnabled(false);
               for (StoringData person : details)
                      if (person.getName1().equals(selectedname))
                             selectedPerson = person;
                             jtfName.setText(person.getName1());
                             jtfPassword.setText(person.getPassword1());
                          jtfPhone.setText(person.getPhone1());
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                         // String sal2 = Integer.parseString(desiredsalary);
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                         // jtfDesiredSalary.setText(sal2);
                             break;
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If you need further help then you need to create a [url http://homepage1.nifty.com/algafield/sscce.html]Short, Self Contained, Compilable and Executable, Example Program (SSCCE) that demonstrates the incorrect behaviour, because I can't guess exactly what you are doing based on the information provided.
And don't forget to use the [url http://forum.java.sun.com/help.jspa?sec=formatting]Code Formatting Tags so the code retains its original formatting.
Here is a simple SSCCE. Now make your changes and if you still have problems you have something simple to post. If it works then you add it to your real application.
Learn to simplify your problem by simplifying the code.
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Recordset putting into a vector

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