Program: 47199
Project: 47199
Buggy source:
public JComponent uriPanel(){
  JToolBar u=new JToolBar(SwingConstants.HORIZONTAL);
  u.setFloatable(false);
  u.setRollover(true);
  u.setOpaque(false);
  u.setBorderPainted(false);
  uris=new JComboBox(player.getPlaylist());
  uris.setMaximumRowCount(20);
  uris.setEditable(true);
  uris.setPrototypeDisplayValue("String_Node_Str");
  uri=(JTextField)uris.getEditor().getEditorComponent();
  uri.getDocument().addDocumentListener(new DocumentListener(){
    @Override public void changedUpdate(    DocumentEvent e){
      setEdited(true);
      if (!playing) {
        play.setEnabled(!StringUtils.isBlank(uri.getText()));
      }
    }
    @Override public void insertUpdate(    DocumentEvent e){
      changedUpdate(e);
    }
    @Override public void removeUpdate(    DocumentEvent e){
      changedUpdate(e);
    }
  }
);
  u.add(uris);
  JButton a=new JButton(add=new AbstractAction("String_Node_Str",addIcon){
    private static final long serialVersionUID=1L;
    @Override public void actionPerformed(    ActionEvent e){
      setEdited(false);
      player.add(-1,uri.getText(),null,null,false);
    }
  }
);
  a.setToolTipText("String_Node_Str");
  u.add(a);
  JButton r=new JButton(remove=new AbstractAction("String_Node_Str",removeIcon){
    private static final long serialVersionUID=8732700198165912103L;
    @Override public void actionPerformed(    ActionEvent e){
      setEdited(false);
      player.remove(uri.getText());
    }
  }
);
  r.setToolTipText("String_Node_Str");
  u.add(r);
  JButton c=new JButton(remove=new AbstractAction("String_Node_Str",clearIcon){
    @Override public void actionPerformed(    ActionEvent e){
      setEdited(false);
      player.clear();
    }
  }
);
  c.setToolTipText("String_Node_Str");
  u.add(c);
  u.add(new JButton(new AbstractAction("String_Node_Str",MetalIconFactory.getTreeFolderIcon()){
    private static final long serialVersionUID=-2826057503405341316L;
    @Override public void actionPerformed(    ActionEvent e){
      JFileChooser fc=new JFileChooser(pwd);
      fc.setFileSelectionMode(JFileChooser.FILES_ONLY);
      if (fc.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
        uri.setText(fc.getSelectedFile().getPath());
        setEdited(true);
      }
      pwd=fc.getCurrentDirectory();
    }
  }
));
  return u;
}

Fixed version (ground truth):
public JComponent uriPanel(){
  JToolBar u=new JToolBar(SwingConstants.HORIZONTAL);
  u.setFloatable(false);
  u.setRollover(true);
  u.setOpaque(false);
  u.setBorderPainted(false);
  uris=new JComboBox(player.getPlaylist());
  uris.setMaximumRowCount(20);
  uris.setEditable(true);
  uris.setPrototypeDisplayValue("String_Node_Str");
  uri=(JTextField)uris.getEditor().getEditorComponent();
  uri.getDocument().addDocumentListener(new DocumentListener(){
    @Override public void changedUpdate(    DocumentEvent e){
      setEdited(true);
      if (!playing) {
        play.setEnabled(!StringUtils.isBlank(uri.getText()));
      }
    }
    @Override public void insertUpdate(    DocumentEvent e){
      changedUpdate(e);
    }
    @Override public void removeUpdate(    DocumentEvent e){
      changedUpdate(e);
    }
  }
);
  u.add(uris);
  JButton a=new JButton(add=new AbstractAction("String_Node_Str",addIcon){
    private static final long serialVersionUID=1L;
    @Override public void actionPerformed(    ActionEvent e){
      setEdited(false);
      player.add(-1,uri.getText(),null,null,false);
    }
  }
);
  a.setToolTipText("String_Node_Str");
  u.add(a);
  JButton r=new JButton(remove=new AbstractAction("String_Node_Str",removeIcon){
    private static final long serialVersionUID=8732700198165912103L;
    @Override public void actionPerformed(    ActionEvent e){
      player.remove(uri.getText());
    }
  }
);
  r.setToolTipText("String_Node_Str");
  u.add(r);
  JButton c=new JButton(clear=new AbstractAction("String_Node_Str",clearIcon){
    @Override public void actionPerformed(    ActionEvent e){
      player.clear();
    }
  }
);
  c.setToolTipText("String_Node_Str");
  u.add(c);
  u.add(new JButton(new AbstractAction("String_Node_Str",MetalIconFactory.getTreeFolderIcon()){
    private static final long serialVersionUID=-2826057503405341316L;
    @Override public void actionPerformed(    ActionEvent e){
      JFileChooser fc=new JFileChooser(pwd);
      fc.setFileSelectionMode(JFileChooser.FILES_ONLY);
      if (fc.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
        uri.setText(fc.getSelectedFile().getPath());
        setEdited(true);
      }
      pwd=fc.getCurrentDirectory();
    }
  }
));
  return u;
}