Program: 69329
Project: 69329
Buggy source:
public GTARunController(UserRequest ureq,WindowControl wControl,GTACourseNode gtaNode,UserCourseEnvironment userCourseEnv){
  super(ureq,wControl);
  this.gtaNode=gtaNode;
  this.userCourseEnv=userCourseEnv;
  ModuleConfiguration config=gtaNode.getModuleConfiguration();
  RepositoryEntry entry=userCourseEnv.getCourseEnvironment().getCourseGroupManager().getCourseEntry();
  Membership membership=gtaManager.getMembership(getIdentity(),entry,gtaNode);
  if (membership.isCoach() && membership.isParticipant()) {
    mainVC=createVelocityContainer("String_Node_Str");
    segmentView=SegmentViewFactory.createSegmentView("String_Node_Str",mainVC,this);
    runLink=LinkFactory.createLink("String_Node_Str",mainVC,this);
    segmentView.addSegment(runLink,true);
    coachLink=LinkFactory.createLink("String_Node_Str",mainVC,this);
    segmentView.addSegment(coachLink,false);
    if (isManagementTabAvalaible(config)) {
      manageLink=LinkFactory.createLink("String_Node_Str",mainVC,this);
      segmentView.addSegment(manageLink,false);
    }
    doOpenRun(ureq);
    mainVC.put("String_Node_Str",segmentView);
    putInitialPanel(mainVC);
  }
 else   if (isManagementTabAvalaible(config)) {
    mainVC=createVelocityContainer("String_Node_Str");
    segmentView=SegmentViewFactory.createSegmentView("String_Node_Str",mainVC,this);
    coachLink=LinkFactory.createLink("String_Node_Str",mainVC,this);
    segmentView.addSegment(coachLink,true);
    manageLink=LinkFactory.createLink("String_Node_Str",mainVC,this);
    segmentView.addSegment(manageLink,false);
    doOpenCoach(ureq);
    mainVC.put("String_Node_Str",segmentView);
    putInitialPanel(mainVC);
  }
 else   if (membership.isCoach() || userCourseEnv.isAdmin()) {
    createCoach(ureq);
    putInitialPanel(coachCtrl.getInitialComponent());
  }
 else   if (membership.isParticipant()) {
    createRun(ureq);
    putInitialPanel(runCtrl.getInitialComponent());
  }
 else {
    String title=translate("String_Node_Str");
    String message=translate("String_Node_Str");
    Controller msgCtrl=MessageUIFactory.createInfoMessage(ureq,wControl,title,message);
    listenTo(msgCtrl);
    putInitialPanel(msgCtrl.getInitialComponent());
  }
  if (gtaNode.getModuleConfiguration().getBooleanSafe(MSCourseNode.CONFIG_KEY_HAS_SCORE_FIELD,false)) {
    HighScoreRunController highScoreCtr=new HighScoreRunController(ureq,wControl,userCourseEnv,gtaNode);
    if (highScoreCtr.isViewHighscore()) {
      Component highScoreComponent=highScoreCtr.getInitialComponent();
      mainVC.put("String_Node_Str",highScoreComponent);
    }
  }
}

Fixed version (ground truth):
public GTARunController(UserRequest ureq,WindowControl wControl,GTACourseNode gtaNode,UserCourseEnvironment userCourseEnv){
  super(ureq,wControl);
  this.gtaNode=gtaNode;
  this.userCourseEnv=userCourseEnv;
  ModuleConfiguration config=gtaNode.getModuleConfiguration();
  RepositoryEntry entry=userCourseEnv.getCourseEnvironment().getCourseGroupManager().getCourseEntry();
  Membership membership=gtaManager.getMembership(getIdentity(),entry,gtaNode);
  if (membership.isCoach() && membership.isParticipant()) {
    mainVC=createVelocityContainer("String_Node_Str");
    segmentView=SegmentViewFactory.createSegmentView("String_Node_Str",mainVC,this);
    runLink=LinkFactory.createLink("String_Node_Str",mainVC,this);
    segmentView.addSegment(runLink,true);
    coachLink=LinkFactory.createLink("String_Node_Str",mainVC,this);
    segmentView.addSegment(coachLink,false);
    if (isManagementTabAvalaible(config)) {
      manageLink=LinkFactory.createLink("String_Node_Str",mainVC,this);
      segmentView.addSegment(manageLink,false);
    }
    doOpenRun(ureq);
    mainVC.put("String_Node_Str",segmentView);
    putInitialPanel(mainVC);
  }
 else   if (isManagementTabAvalaible(config)) {
    mainVC=createVelocityContainer("String_Node_Str");
    segmentView=SegmentViewFactory.createSegmentView("String_Node_Str",mainVC,this);
    coachLink=LinkFactory.createLink("String_Node_Str",mainVC,this);
    segmentView.addSegment(coachLink,true);
    manageLink=LinkFactory.createLink("String_Node_Str",mainVC,this);
    segmentView.addSegment(manageLink,false);
    doOpenCoach(ureq);
    mainVC.put("String_Node_Str",segmentView);
    putInitialPanel(mainVC);
  }
 else   if (membership.isCoach() || userCourseEnv.isAdmin()) {
    createCoach(ureq);
    putInitialPanel(coachCtrl.getInitialComponent());
  }
 else   if (membership.isParticipant()) {
    createRun(ureq);
    putInitialPanel(runCtrl.getInitialComponent());
  }
 else {
    String title=translate("String_Node_Str");
    String message=translate("String_Node_Str");
    Controller msgCtrl=MessageUIFactory.createInfoMessage(ureq,wControl,title,message);
    listenTo(msgCtrl);
    putInitialPanel(msgCtrl.getInitialComponent());
  }
}