Program: 62867
Project: 62867
Buggy source:
public boolean isNameVisibleTo(FeedbackQuestionAttributes question,FeedbackResponseAttributes response,String userEmail,boolean isGiverName,CourseRoster roster){
  if (question == null) {
    return false;
  }
  List<FeedbackParticipantType> showNameTo=isGiverName ? question.showGiverNameTo : question.showRecipientNameTo;
  if (response.giverEmail.equals(userEmail)) {
    return true;
  }
  for (  FeedbackParticipantType type : showNameTo) {
switch (type) {
case INSTRUCTORS:
      if (roster.getInstructorForEmail(userEmail) != null) {
        return true;
      }
 else {
        break;
      }
case OWN_TEAM_MEMBERS:
case OWN_TEAM_MEMBERS_INCLUDING_SELF:
    if (roster.isStudentsInSameTeam(response.giverEmail,userEmail)) {
      return true;
    }
 else {
      break;
    }
case RECEIVER:
  if (question.recipientType == FeedbackParticipantType.TEAMS) {
    if (roster.isStudentInTeam(userEmail,response.recipientEmail)) {
      return true;
    }
  }
 else   if (response.recipientEmail.equals(userEmail)) {
    return true;
  }
 else {
    break;
  }
case RECEIVER_TEAM_MEMBERS:
if (question.recipientType == FeedbackParticipantType.TEAMS) {
  if (roster.isStudentInTeam(userEmail,response.recipientEmail)) {
    return true;
  }
}
 else if (roster.isStudentsInSameTeam(response.recipientEmail,userEmail)) {
  return true;
}
 else {
  break;
}
case STUDENTS:
if (roster.isStudentInCourse(userEmail)) {
return true;
}
 else {
break;
}
default :
Assumption.fail("String_Node_Str" + "String_Node_Str");
break;
}
}
return false;
}

Fixed version (ground truth):
public boolean isNameVisibleTo(FeedbackQuestionAttributes question,FeedbackResponseAttributes response,String userEmail,UserType.Role role,boolean isGiverName,CourseRoster roster){
  if (question == null) {
    return false;
  }
  List<FeedbackParticipantType> showNameTo=isGiverName ? question.showGiverNameTo : question.showRecipientNameTo;
  if (response.giverEmail.equals(userEmail)) {
    return true;
  }
  for (  FeedbackParticipantType type : showNameTo) {
switch (type) {
case INSTRUCTORS:
      if (roster.getInstructorForEmail(userEmail) != null && role == UserType.Role.INSTRUCTOR) {
        return true;
      }
 else {
        break;
      }
case OWN_TEAM_MEMBERS:
case OWN_TEAM_MEMBERS_INCLUDING_SELF:
    if (roster.isStudentsInSameTeam(response.giverEmail,userEmail)) {
      return true;
    }
 else {
      break;
    }
case RECEIVER:
  if (question.recipientType == FeedbackParticipantType.TEAMS) {
    if (roster.isStudentInTeam(userEmail,response.recipientEmail)) {
      return true;
    }
  }
 else   if (response.recipientEmail.equals(userEmail)) {
    return true;
  }
 else {
    break;
  }
case RECEIVER_TEAM_MEMBERS:
if (question.recipientType == FeedbackParticipantType.TEAMS) {
  if (roster.isStudentInTeam(userEmail,response.recipientEmail)) {
    return true;
  }
}
 else if (roster.isStudentsInSameTeam(response.recipientEmail,userEmail)) {
  return true;
}
 else {
  break;
}
case STUDENTS:
if (roster.isStudentInCourse(userEmail)) {
return true;
}
 else {
break;
}
default :
Assumption.fail("String_Node_Str" + "String_Node_Str");
break;
}
}
return false;
}