Program: 69845
Project: 69845
Buggy source:
public InstantMessagingMainController(UserRequest ureq,WindowControl wControl){
  super(ureq,wControl);
  imService=CoreSpringFactory.getImpl(InstantMessagingService.class);
  boolean ajaxOn=getWindowControl().getWindowBackOffice().getWindowManager().isAjaxEnabled();
  chatContent.contextPut("String_Node_Str",Boolean.valueOf(ajaxOn));
  jsc=new JSAndCSSComponent("String_Node_Str",this.getClass(),null,null,false,null,5000);
  main.put("String_Node_Str",jsc);
  newMsgIcon.contextPut("String_Node_Str",showNewMessageHolder);
  Theme guiTheme=getWindowControl().getWindowBackOffice().getWindow().getGuiTheme();
  String newMessageSoundURL=guiTheme.getBaseURI() + "String_Node_Str";
  File soundFile=new File(WebappHelper.getContextRoot() + "String_Node_Str" + guiTheme.getIdentifyer()+ "String_Node_Str");
  if (!soundFile.exists()) {
    newMessageSoundURL=newMessageSoundURL.replace("String_Node_Str" + guiTheme.getIdentifyer(),"String_Node_Str");
  }
  newMsgIcon.contextPut("String_Node_Str",newMessageSoundURL);
  loadNotifications();
  statusChangerLink=LinkFactory.createCustomLink("String_Node_Str","String_Node_Str","String_Node_Str",Link.NONTRANSLATED,null,this);
  statusChangerLink.registerForMousePositionEvent(true);
  statusChangerLink.setTooltip(getTranslator().translate("String_Node_Str"),false);
  updateStatusCss(null);
  main.put("String_Node_Str",statusChangerLink);
  InstantMessagingModule imModule=CoreSpringFactory.getImpl(InstantMessagingModule.class);
  if (imModule.isGroupPeersEnabled()) {
    onlineOfflineCount=LinkFactory.createCustomLink("String_Node_Str","String_Node_Str","String_Node_Str",Link.NONTRANSLATED,main,this);
    onlineOfflineCount.setTooltip(getTranslator().translate("String_Node_Str"),false);
    onlineOfflineCount.registerForMousePositionEvent(true);
    updateBuddyStats();
    main.put("String_Node_Str",onlineOfflineCount);
  }
  main.put("String_Node_Str",newMsgIcon);
  rosterPanel=new Panel("String_Node_Str");
  main.put("String_Node_Str",rosterPanel);
  statusPanel=new Panel("String_Node_Str");
  main.put("String_Node_Str",statusPanel);
  chatMgrCtrl=new ChatManagerController(ureq,wControl);
  listenTo(chatMgrCtrl);
  newMsgIcon.put("String_Node_Str",chatMgrCtrl.getInitialComponent());
  imService.listenChat(getIdentity(),getPrivatListenToResourceable(),false,false,this);
  singleUserEventCenter=ureq.getUserSession().getSingleUserEventCenter();
  singleUserEventCenter.registerFor(this,getIdentity(),InstantMessagingService.ASSESSMENT_EVENT_ORES);
  singleUserEventCenter.registerFor(this,getIdentity(),InstantMessagingService.TOWER_EVENT_ORES);
  putInitialPanel(main);
}

Fixed version (ground truth):
public InstantMessagingMainController(UserRequest ureq,WindowControl wControl){
  super(ureq,wControl);
  imService=CoreSpringFactory.getImpl(InstantMessagingService.class);
  boolean ajaxOn=getWindowControl().getWindowBackOffice().getWindowManager().isAjaxEnabled();
  chatContent.contextPut("String_Node_Str",Boolean.valueOf(ajaxOn));
  jsc=new JSAndCSSComponent("String_Node_Str",this.getClass(),null,null,false,null,5000);
  main.put("String_Node_Str",jsc);
  newMsgIcon.contextPut("String_Node_Str",showNewMessageHolder);
  Theme guiTheme=getWindowControl().getWindowBackOffice().getWindow().getGuiTheme();
  String newMessageSoundURL=guiTheme.getBaseURI() + "String_Node_Str";
  File soundFile=new File(WebappHelper.getContextRoot() + "String_Node_Str" + guiTheme.getIdentifyer()+ "String_Node_Str");
  if (!soundFile.exists()) {
    newMessageSoundURL=newMessageSoundURL.replace("String_Node_Str" + guiTheme.getIdentifyer(),"String_Node_Str");
  }
  newMsgIcon.contextPut("String_Node_Str",newMessageSoundURL);
  loadNotifications();
  statusChangerLink=LinkFactory.createCustomLink("String_Node_Str","String_Node_Str","String_Node_Str",Link.NONTRANSLATED,null,this);
  statusChangerLink.registerForMousePositionEvent(true);
  statusChangerLink.setTooltip(getTranslator().translate("String_Node_Str"),false);
  updateStatusCss(null);
  main.put("String_Node_Str",statusChangerLink);
  InstantMessagingModule imModule=CoreSpringFactory.getImpl(InstantMessagingModule.class);
  if (imModule.isGroupPeersEnabled()) {
    onlineOfflineCount=LinkFactory.createCustomLink("String_Node_Str","String_Node_Str","String_Node_Str",Link.NONTRANSLATED,main,this);
    onlineOfflineCount.setTooltip(getTranslator().translate("String_Node_Str"),false);
    onlineOfflineCount.registerForMousePositionEvent(true);
    updateBuddyStats();
    main.put("String_Node_Str",onlineOfflineCount);
    getWindowControl().getWindowBackOffice().addCycleListener(this);
  }
  main.put("String_Node_Str",newMsgIcon);
  rosterPanel=new Panel("String_Node_Str");
  main.put("String_Node_Str",rosterPanel);
  statusPanel=new Panel("String_Node_Str");
  main.put("String_Node_Str",statusPanel);
  chatMgrCtrl=new ChatManagerController(ureq,wControl);
  listenTo(chatMgrCtrl);
  newMsgIcon.put("String_Node_Str",chatMgrCtrl.getInitialComponent());
  imService.listenChat(getIdentity(),getPrivatListenToResourceable(),false,false,this);
  singleUserEventCenter=ureq.getUserSession().getSingleUserEventCenter();
  singleUserEventCenter.registerFor(this,getIdentity(),InstantMessagingService.ASSESSMENT_EVENT_ORES);
  singleUserEventCenter.registerFor(this,getIdentity(),InstantMessagingService.TOWER_EVENT_ORES);
  putInitialPanel(main);
}