Program: 10864
Project: 10864
Buggy source:
/** 
 * Will resolve an option variables for tunnel options like username and password, and prompt the user for non-user variables. Returns a service command with resolved variables, or null if the user cancelled entering values for non-user variables. If not service command is returned, it indicates that the application command should not be executed.
 * @return resolved service command, or null if variables are not resolved,most likely due to user canceling the prompt
 */
public ServiceCommand promptForValues(){
  CommandOptions options=serviceCommand.getOptions();
  if (options != null) {
    List<String> variables=ServiceCommand.getOptionVariables(serviceCommand,options.getOptions());
    boolean shouldPromptForNonTunnel=false;
    if (variables != null && !variables.isEmpty()) {
      Map<String,String> variableToValue=new HashMap<String,String>();
      for (      String variable : variables) {
        String value=null;
        if (variable != null) {
          TunnelOptions tunnelOption=getTunnelOption(variable);
          if (tunnelOption != null) {
switch (tunnelOption) {
case Username:
              value=descriptor.getUserName();
            break;
case Password:
          value=descriptor.getPassword();
        break;
case Url:
      value=descriptor.getURL();
    break;
case Databasename:
  value=descriptor.getDatabaseName();
break;
case Port:
value=descriptor.tunnelPort() + "String_Node_Str";
break;
}
}
 else {
shouldPromptForNonTunnel=true;
}
}
variableToValue.put(variable,value);
}
if (shouldPromptForNonTunnel) {
variableToValue=promptForUnsetValues(variableToValue);
if (variableToValue == null) {
return null;
}
}
ServiceCommand.setOptionVariableValues(serviceCommand,variableToValue);
}
}
return serviceCommand;
}

Fixed version (ground truth):
/** 
 * Will resolve an option variables for tunnel options like username and password, and prompt the user for non-user variables. Returns a service command with resolved variables, or null if the user cancelled entering values for non-user variables. If not service command is returned, it indicates that the application command should not be executed.
 * @return resolved service command, or null if variables are not resolved,most likely due to user canceling the prompt
 */
public ServiceCommand promptForValues(){
  CommandOptions options=serviceCommand.getOptions();
  if (options != null) {
    List<String> variables=ServiceCommand.getOptionVariables(serviceCommand,options.getOptions());
    boolean shouldPromptForNonTunnel=false;
    if (variables != null && !variables.isEmpty()) {
      Map<String,String> variableToValue=new HashMap<String,String>();
      for (      String variable : variables) {
        String value=null;
        if (variable != null) {
          TunnelOptions tunnelOption=getTunnelOption(variable);
          if (tunnelOption != null) {
switch (tunnelOption) {
case username:
              value=descriptor.getUserName();
            break;
case password:
          value=descriptor.getPassword();
        break;
case url:
      value=descriptor.getURL();
    break;
case databasename:
  value=descriptor.getDatabaseName();
break;
case port:
value=descriptor.tunnelPort() + "String_Node_Str";
break;
}
}
 else {
shouldPromptForNonTunnel=true;
}
}
variableToValue.put(variable,value);
}
if (shouldPromptForNonTunnel) {
variableToValue=promptForUnsetValues(variableToValue);
if (variableToValue == null) {
return null;
}
}
ServiceCommand.setOptionVariableValues(serviceCommand,variableToValue);
}
}
return serviceCommand;
}