this.globalRegistries = globalRegistries; if ( this.globalRegistries == null )
if ( globalRegistries == null )
    public OperationalAttributeService( RootNexus nexus,                                        GlobalRegistries globalRegistries,                                        FilterService filteringService )    {        this.nexus = nexus;        if ( this.nexus == null )        {            throw new NullPointerException( "the nexus cannot be null" );        }        this.globalRegistries = globalRegistries;        if ( this.globalRegistries == null )        {            throw new NullPointerException( "the global registries cannot be null" );        }        this.filteringService = filteringService;        if ( this.filteringService == null )        {            throw new NullPointerException( "the filter service cannot be null" );        }        this.filteringService.addLookupFilter( LOOKUP_FILTER );        this.filteringService.addSearchResultFilter( SEARCH_FILTER );    }