Program: 69312
Project: 69312
Buggy source:
public MembersPrintController(UserRequest ureq,WindowControl wControl,List<UserPropertyHandler> userPropertyHandlers,Translator translator,List<Member> owners,List<Member> coaches,List<Member> participants,List<Member> waiting,boolean showOwners,boolean showCoaches,boolean showParticipants,boolean showWaiting,String title){
  super(ureq,wControl);
  setTranslator(Util.createPackageTranslator(translator,getTranslator(),getLocale()));
  avatarBaseURL=registerCacheableMapper(ureq,"String_Node_Str",new UserAvatarHQMapper());
  this.userPropertyHandlers=userPropertyHandlers;
  mainVC=createVelocityContainer("String_Node_Str");
  mainVC.contextPut("String_Node_Str",title);
  mainVC.contextPut("String_Node_Str",avatarBaseURL);
  mainVC.contextPut("String_Node_Str",userPropertyHandlers);
  if (showOwners && owners != null && owners.size() > 0) {
    initFormMemberList("String_Node_Str",translate("String_Node_Str"),owners);
  }
  if (showCoaches && coaches != null && coaches.size() > 0) {
    initFormMemberList("String_Node_Str",translate("String_Node_Str"),coaches);
  }
  if (showParticipants && participants != null && participants.size() > 0) {
    initFormMemberList("String_Node_Str",translate("String_Node_Str"),participants);
  }
  if (showWaiting && waiting != null && waiting.size() > 0) {
    initFormMemberList("String_Node_Str",translate("String_Node_Str"),waiting);
  }
  MainPanel mainPanel=new MainPanel("String_Node_Str");
  mainPanel.setContent(mainVC);
  putInitialPanel(mainPanel);
}

Fixed version (ground truth):
public MembersPrintController(UserRequest ureq,WindowControl wControl,Translator translator,List<Member> owners,List<Member> coaches,List<Member> participants,List<Member> waiting,boolean showOwners,boolean showCoaches,boolean showParticipants,boolean showWaiting,String title){
  super(ureq,wControl);
  setTranslator(Util.createPackageTranslator(translator,getTranslator(),getLocale()));
  mainVC=createVelocityContainer("String_Node_Str");
  mainVC.contextPut("String_Node_Str",title);
  avatarBaseURL=registerCacheableMapper(ureq,"String_Node_Str",new UserAvatarHQMapper());
  mainVC.contextPut("String_Node_Str",avatarBaseURL);
  Roles roles=ureq.getUserSession().getRoles();
  boolean isAdministrativeUser=securityModule.isUserAllowedAdminProps(roles);
  userPropertyHandlers=userManager.getUserPropertyHandlersFor(MembersDisplayRunController.USER_PROPS_LIST_ID,isAdministrativeUser);
  userPropertyPrintHandlers=userManager.getUserPropertyHandlersFor(MembersDisplayRunController.USER_PROPS_PRINT_ID,isAdministrativeUser);
  if (showOwners && owners != null && owners.size() > 0) {
    initFormMemberList("String_Node_Str",translate("String_Node_Str"),owners);
  }
  if (showCoaches && coaches != null && coaches.size() > 0) {
    initFormMemberList("String_Node_Str",translate("String_Node_Str"),coaches);
  }
  if (showParticipants && participants != null && participants.size() > 0) {
    initFormMemberList("String_Node_Str",translate("String_Node_Str"),participants);
  }
  if (showWaiting && waiting != null && waiting.size() > 0) {
    initFormMemberList("String_Node_Str",translate("String_Node_Str"),waiting);
  }
  MainPanel mainPanel=new MainPanel("String_Node_Str");
  mainPanel.setContent(mainVC);
  putInitialPanel(mainPanel);
}