Program: 45129
Project: 45129
Buggy source:
public void actionPerformed(ActionEvent ev_ref){
  if (ev_ref.getActionCommand().equals("String_Node_Str")) {
    String[][][] newMatrix_ref=new String[2][][];
    newMatrix_ref[0]=(setGui_ref.getGUI().getSettings())[0];
    String[] tempData_ref=new String[(setGui_ref.getGUI().getSettings())[1][0].length];
    tempData_ref[0]="String_Node_Str" + ((setGui_ref.getGUI().getSettings())[1].length + 1);
    for (int i=1; i < tempData_ref.length; i++) {
      tempData_ref[i]="String_Node_Str";
    }
    newMatrix_ref[1]=new String[(setGui_ref.getGUI().getSettings())[1].length + 1][];
    for (int i=0; i < (setGui_ref.getGUI().getSettings())[1].length; i++) {
      newMatrix_ref[1][i]=(setGui_ref.getGUI().getSettings())[1][i];
    }
    newMatrix_ref[1][newMatrix_ref[1].length - 1]=tempData_ref;
    setGui_ref.getGUI().initializeSettings(newMatrix_ref);
    updateCommandBox();
    cComBox_ref.setSelectedIndex(cComBox_ref.getItemCount() - 1);
  }
 else   if (ev_ref.getActionCommand().equals("String_Node_Str")) {
    if ((setGui_ref.getGUI().getSettings())[1].length > 1) {
      String[][][] newMatrix_ref=new String[2][][];
      newMatrix_ref[0]=(setGui_ref.getGUI().getSettings())[0];
      int toDelete=cComBox_ref.getSelectedIndex();
      String[][] ccommandsOld_ref=(setGui_ref.getGUI().getSettings())[1];
      ccommandsOld_ref[toDelete]=null;
      newMatrix_ref[1]=new String[(setGui_ref.getGUI().getSettings())[1].length - 1][];
      int count=0;
      for (int i=0; i < ccommandsOld_ref.length; i++) {
        if (ccommandsOld_ref[i] != null) {
          newMatrix_ref[1][count]=ccommandsOld_ref[i];
          count++;
        }
      }
      setGui_ref.getGUI().initializeSettings(newMatrix_ref);
      updateCommandBox();
      int newIndex=0;
      if (toDelete != 0) {
        newIndex=toDelete - 1;
      }
      cComBox_ref.setSelectedIndex(newIndex);
    }
 else {
      setGui_ref.displayError("String_Node_Str");
    }
  }
 else   if (ev_ref.getActionCommand().equals("String_Node_Str")) {
    if (custNameTextF_ref.getText().length() > 15) {
      setGui_ref.displayError("String_Node_Str");
    }
 else {
      int selectedIndex=cComBox_ref.getSelectedIndex();
      for (int i=1; i < (setGui_ref.getGUI().getSettings())[1][selectedIndex].length; i++) {
        (setGui_ref.getGUI().getSettings())[1][selectedIndex][i]=(String)custTableMod_ref.getValueAt((i - 1),1);
      }
      (setGui_ref.getGUI().getSettings())[1][selectedIndex][0]=custNameTextF_ref.getText();
      updateCommandBox();
      cComBox_ref.setSelectedIndex(selectedIndex);
      setGui_ref.getGUI().initializeSettings(setGui_ref.getGUI().getSettings());
    }
  }
 else   if (ev_ref.getActionCommand().equals("String_Node_Str")) {
    String[] osValues_ref=setGui_ref.getGUI().getOSValues();
    String[][] commandMatrix_ref=new String[osValues_ref.length][2];
    for (int i=0; i < commandMatrix_ref.length; i++) {
      commandMatrix_ref[i][0]=osValues_ref[i];
      commandMatrix_ref[i][1]="String_Node_Str";
    }
    custNameTextF_ref.setText("String_Node_Str" + (cComBox_ref.getSelectedIndex() + 1));
    custTableMod_ref.setDataVector(commandMatrix_ref,new String[]{"String_Node_Str","String_Node_Str"});
    custTable_ref.getColumnModel().getColumn(0).setPreferredWidth(60);
    custTable_ref.getColumnModel().getColumn(1).setPreferredWidth(540);
    custTableMod_ref.fireTableDataChanged();
  }
}

Fixed version (ground truth):
public void actionPerformed(ActionEvent ev_ref){
  if (ev_ref.getActionCommand().equals("String_Node_Str")) {
    String[][][] newMatrix_ref=new String[2][][];
    newMatrix_ref[0]=(setGui_ref.getGUI().getSettings())[0];
    String[] tempData_ref=new String[(setGui_ref.getGUI().getSettings())[1][0].length];
    tempData_ref[0]="String_Node_Str" + ((setGui_ref.getGUI().getSettings())[1].length + 1);
    for (int i=1; i < tempData_ref.length; i++) {
      tempData_ref[i]="String_Node_Str";
    }
    newMatrix_ref[1]=new String[(setGui_ref.getGUI().getSettings())[1].length + 1][];
    for (int i=0; i < (setGui_ref.getGUI().getSettings())[1].length; i++) {
      newMatrix_ref[1][i]=(setGui_ref.getGUI().getSettings())[1][i];
    }
    newMatrix_ref[1][newMatrix_ref[1].length - 1]=tempData_ref;
    setGui_ref.getGUI().initializeSettings(newMatrix_ref);
    updateCommandBox();
    cComBox_ref.setSelectedIndex(cComBox_ref.getItemCount() - 1);
  }
 else   if (ev_ref.getActionCommand().equals("String_Node_Str")) {
    if ((setGui_ref.getGUI().getSettings())[1].length > 1) {
      String[][][] newMatrix_ref=new String[2][][];
      newMatrix_ref[0]=(setGui_ref.getGUI().getSettings())[0];
      int toDelete=cComBox_ref.getSelectedIndex();
      String[][] ccommandsOld_ref=(setGui_ref.getGUI().getSettings())[1];
      ccommandsOld_ref[toDelete]=null;
      newMatrix_ref[1]=new String[(setGui_ref.getGUI().getSettings())[1].length - 1][];
      int count=0;
      for (int i=0; i < ccommandsOld_ref.length; i++) {
        if (ccommandsOld_ref[i] != null) {
          newMatrix_ref[1][count]=ccommandsOld_ref[i];
          count++;
        }
      }
      setGui_ref.getGUI().initializeSettings(newMatrix_ref);
      updateCommandBox();
      int newIndex=0;
      if (toDelete != 0) {
        newIndex=toDelete - 1;
      }
      cComBox_ref.setSelectedIndex(newIndex);
    }
 else {
      setGui_ref.displayError("String_Node_Str");
    }
  }
 else   if (ev_ref.getActionCommand().equals("String_Node_Str")) {
    if (custNameTextF_ref.getText().length() > 15) {
      setGui_ref.displayError("String_Node_Str");
    }
 else {
      custTable_ref.getCellEditor().stopCellEditing();
      int selectedIndex=cComBox_ref.getSelectedIndex();
      for (int i=1; i < (setGui_ref.getGUI().getSettings())[1][selectedIndex].length; i++) {
        (setGui_ref.getGUI().getSettings())[1][selectedIndex][i]=(String)custTableMod_ref.getValueAt((i - 1),1);
      }
      (setGui_ref.getGUI().getSettings())[1][selectedIndex][0]=custNameTextF_ref.getText();
      updateCommandBox();
      cComBox_ref.setSelectedIndex(selectedIndex);
      setGui_ref.getGUI().initializeSettings(setGui_ref.getGUI().getSettings());
    }
  }
 else   if (ev_ref.getActionCommand().equals("String_Node_Str")) {
    String[] osValues_ref=setGui_ref.getGUI().getOSValues();
    String[][] commandMatrix_ref=new String[osValues_ref.length][2];
    for (int i=0; i < commandMatrix_ref.length; i++) {
      commandMatrix_ref[i][0]=osValues_ref[i];
      commandMatrix_ref[i][1]="String_Node_Str";
    }
    custNameTextF_ref.setText("String_Node_Str" + (cComBox_ref.getSelectedIndex() + 1));
    custTableMod_ref.setDataVector(commandMatrix_ref,new String[]{"String_Node_Str","String_Node_Str"});
    custTable_ref.getColumnModel().getColumn(0).setPreferredWidth(60);
    custTable_ref.getColumnModel().getColumn(1).setPreferredWidth(540);
    custTableMod_ref.fireTableDataChanged();
  }
}