Program: 20720
Project: 20720
Buggy source:
private void initConfig(){
  ConfigEntry ce=null;
  config.setGroup(new ConfigGroup(getHost(),getIconKey()));
  config.addEntry(ce=new ConfigEntry(ConfigContainer.TYPE_BROWSEFOLDER,subConfig,FolderWatchConstants.PROPERTY_FOLDER,JDL.L("String_Node_Str","String_Node_Str")));
  config.addEntry(new ConfigEntry(ConfigContainer.TYPE_SEPARATOR));
  config.addEntry(ce=new ConfigEntry(ConfigContainer.TYPE_BUTTON,this,JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str"),JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str"),JDTheme.II("String_Node_Str",16,16)));
  config.addEntry(ce=new ConfigEntry(ConfigContainer.TYPE_BUTTON,this,JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str"),JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str"),JDTheme.II("String_Node_Str",16,16)));
  config.addEntry(new ConfigEntry(ConfigContainer.TYPE_SEPARATOR));
  config.addEntry(ce=new ConfigEntry(ConfigContainer.TYPE_CHECKBOX,subConfig,FolderWatchConstants.PROPERTY_RECURSIVE,JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str")).setDefaultValue(false));
  if (!OSDetector.isWindows())   ce.setEnabled(false);
 else   ce.setDefaultValue(true);
  config.addEntry(ce=new ConfigEntry(ConfigContainer.TYPE_CHECKBOX,subConfig,FolderWatchConstants.PROPERTY_AUTODELETE,JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str")).setDefaultValue(false));
  config.addEntry(ce=new ConfigEntry(ConfigContainer.TYPE_CHECKBOX,subConfig,FolderWatchConstants.PROPERTY_HISTORYONLY,JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str")).setDefaultValue(false));
  config.addEntry(ce=new ConfigEntry(ConfigContainer.TYPE_CHECKBOX,subConfig,FolderWatchConstants.PROPERTY_DELETECASCADE,JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str")).setDefaultValue(false));
}

Fixed version (ground truth):
private void initConfig(){
  ConfigEntry ce=null;
  config.setGroup(new ConfigGroup(getHost(),getIconKey()));
  config.addEntry(ce=new ConfigEntry(ConfigContainer.TYPE_BROWSEFOLDER,subConfig,FolderWatchConstants.PROPERTY_FOLDER,JDL.L("String_Node_Str","String_Node_Str")));
  config.addEntry(new ConfigEntry(ConfigContainer.TYPE_SEPARATOR));
  config.addEntry(ce=new ConfigEntry(ConfigContainer.TYPE_BUTTON,this,JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str"),JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str"),JDTheme.II("String_Node_Str",16,16)));
  config.addEntry(ce=new ConfigEntry(ConfigContainer.TYPE_BUTTON,this,JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str"),JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str"),JDTheme.II("String_Node_Str",16,16)));
  config.addEntry(new ConfigEntry(ConfigContainer.TYPE_SEPARATOR));
  config.addEntry(ce=new ConfigEntry(ConfigContainer.TYPE_CHECKBOX,subConfig,FolderWatchConstants.PROPERTY_RECURSIVE,JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str")).setDefaultValue(false));
  if (!OSDetector.isWindows())   ce.setEnabled(false);
 else   ce.setDefaultValue(true);
  config.addEntry(ce=new ConfigEntry(ConfigContainer.TYPE_CHECKBOX,subConfig,FolderWatchConstants.PROPERTY_AUTODELETE,JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str")).setDefaultValue(false));
  config.addEntry(ce=new ConfigEntry(ConfigContainer.TYPE_CHECKBOX,subConfig,FolderWatchConstants.PROPERTY_HISTORYONLY,JDL.L(JDL_PREFIX + "String_Node_Str","String_Node_Str")).setDefaultValue(false));
}