Program: 62744
Project: 62744
Buggy source:
@Override protected ActionResult execute() throws EntityDoesNotExistException {
  String courseId=getRequestParamValue(Const.ParamsNames.COURSE_ID);
  Assumption.assertNotNull("String_Node_Str",courseId);
  String courseIndexString=getRequestParamValue(Const.ParamsNames.COURSE_INDEX);
  Assumption.assertNotNull("String_Node_Str",courseIndexString);
  new GateKeeper().verifyInstructorPrivileges(account);
  InstructorAttributes instructor=logic.getInstructorForGoogleId(courseId,account.googleId);
  CourseAttributes course=logic.getCourse(courseId);
  new GateKeeper().verifyAccessible(instructor,course);
  List<SectionDetailsBundle> courseSectionDetails=logic.getSectionsForCourse(courseId);
  int courseIndex=Integer.parseInt(courseIndexString);
  boolean hasSection=logic.hasIndicatedSections(courseId);
  Map<String,String> emailPhotoUrlMapping=new HashMap<String,String>();
  Map<String,Map<String,Boolean>> sectionPrivileges=new HashMap<>();
  for (  SectionDetailsBundle sectionDetails : courseSectionDetails) {
    for (    TeamDetailsBundle teamDetails : sectionDetails.teams) {
      for (      StudentAttributes student : teamDetails.students) {
        studentPhotoUrl=student.getPublicProfilePictureUrl();
        studentPhotoUrl=Url.addParamToUrl(studentPhotoUrl,Const.ParamsNames.USER_ID,account.googleId);
        emailPhotoUrlMapping.put(student.email,studentPhotoUrl);
      }
    }
    Map<String,Boolean> sectionPrivilege=new HashMap<String,Boolean>();
    sectionPrivilege.put(Const.ParamsNames.INSTRUCTOR_PERMISSION_VIEW_STUDENT_IN_SECTIONS,instructor.isAllowedForPrivilege(sectionDetails.name,Const.ParamsNames.INSTRUCTOR_PERMISSION_VIEW_STUDENT_IN_SECTIONS));
    sectionPrivilege.put(Const.ParamsNames.INSTRUCTOR_PERMISSION_MODIFY_STUDENT,instructor.isAllowedForPrivilege(sectionDetails.name,Const.ParamsNames.INSTRUCTOR_PERMISSION_MODIFY_STUDENT));
    sectionPrivilege.put(Const.ParamsNames.INSTRUCTOR_PERMISSION_GIVE_COMMENT_IN_SECTIONS,instructor.isAllowedForPrivilege(sectionDetails.name,Const.ParamsNames.INSTRUCTOR_PERMISSION_GIVE_COMMENT_IN_SECTIONS));
    sectionPrivileges.put(sectionDetails.name,sectionPrivilege);
  }
  InstructorStudentListAjaxPageData data=new InstructorStudentListAjaxPageData(account,courseId,courseIndex,hasSection,courseSectionDetails,sectionPrivileges,emailPhotoUrlMapping);
  return createShowPageResult(Const.ViewURIs.INSTRUCTOR_STUDENT_LIST_AJAX,data);
}

Fixed version (ground truth):
@Override protected ActionResult execute() throws EntityDoesNotExistException {
  String courseId=getRequestParamValue(Const.ParamsNames.COURSE_ID);
  Assumption.assertNotNull("String_Node_Str",courseId);
  String courseIndexString=getRequestParamValue(Const.ParamsNames.COURSE_INDEX);
  Assumption.assertNotNull("String_Node_Str",courseIndexString);
  new GateKeeper().verifyInstructorPrivileges(account);
  InstructorAttributes instructor=logic.getInstructorForGoogleId(courseId,account.googleId);
  CourseAttributes course=logic.getCourse(courseId);
  new GateKeeper().verifyAccessible(instructor,course);
  List<SectionDetailsBundle> courseSectionDetails=logic.getSectionsForCourse(courseId);
  int courseIndex=Integer.parseInt(courseIndexString);
  boolean hasSection=logic.hasIndicatedSections(courseId);
  Map<String,String> emailPhotoUrlMapping=new HashMap<String,String>();
  Map<String,Map<String,Boolean>> sectionPrivileges=new HashMap<>();
  String studentPhotoUrl="String_Node_Str";
  for (  SectionDetailsBundle sectionDetails : courseSectionDetails) {
    for (    TeamDetailsBundle teamDetails : sectionDetails.teams) {
      for (      StudentAttributes student : teamDetails.students) {
        studentPhotoUrl=student.getPublicProfilePictureUrl();
        studentPhotoUrl=Url.addParamToUrl(studentPhotoUrl,Const.ParamsNames.USER_ID,account.googleId);
        emailPhotoUrlMapping.put(student.email,studentPhotoUrl);
      }
    }
    Map<String,Boolean> sectionPrivilege=new HashMap<String,Boolean>();
    sectionPrivilege.put(Const.ParamsNames.INSTRUCTOR_PERMISSION_VIEW_STUDENT_IN_SECTIONS,instructor.isAllowedForPrivilege(sectionDetails.name,Const.ParamsNames.INSTRUCTOR_PERMISSION_VIEW_STUDENT_IN_SECTIONS));
    sectionPrivilege.put(Const.ParamsNames.INSTRUCTOR_PERMISSION_MODIFY_STUDENT,instructor.isAllowedForPrivilege(sectionDetails.name,Const.ParamsNames.INSTRUCTOR_PERMISSION_MODIFY_STUDENT));
    sectionPrivilege.put(Const.ParamsNames.INSTRUCTOR_PERMISSION_GIVE_COMMENT_IN_SECTIONS,instructor.isAllowedForPrivilege(sectionDetails.name,Const.ParamsNames.INSTRUCTOR_PERMISSION_GIVE_COMMENT_IN_SECTIONS));
    sectionPrivileges.put(sectionDetails.name,sectionPrivilege);
  }
  InstructorStudentListAjaxPageData data=new InstructorStudentListAjaxPageData(account,courseId,courseIndex,hasSection,courseSectionDetails,sectionPrivileges,emailPhotoUrlMapping);
  return createShowPageResult(Const.ViewURIs.INSTRUCTOR_STUDENT_LIST_AJAX,data);
}