2017-03-23

Java: Silence Eclipse's Null Type Safety Warnings Where It Shouldn't

So you just enabled "Null analysis" in Eclipse, and set a reasonable NonNull annotation to confom (ie. javax.validation.constraints.NotNull), also started annotating the relevant methods with it.

But.
When using the new Java 8 Streams API, Eclipse warns inside the functions you toss in, even if you've filtered out the null ones.

I'll give you an example:
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// ...inside the Foo class...
public Foo(@NotNull final Bar bar) {
        this.bar = Objects.requireNonNull(bar, "Shame...");
}
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// ...inside somewhere completely unrelated...
public Optional<Foo> getFoobarizedBarBaz() {
        return Optional.ofNullable(
                fooService.getBar()
                        .stream()
                                .filter(Objects::nonNull) // yeah, so no nulls, plz
                                .map(bar -> new Foo(bar /* Oh no, yellow underline*/, someLocalValue)
                                .findAny());
}

But oh, the "bar" is underlined, stating "Null type safety: The expression of type 'Bar' needs unchecked conversion to conform to '@NotNull Bar'"...

If only there were a way to resolve that...wait, there is! We can set the type of the formal parameters inside the lambda expression!
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// ...inside somewhere completely unrelated...
public Optional<Foo> getFoobarizedBarBaz() {
        return Optional.ofNullable(
                fooService.getBar()
                        .stream()
                                .filter(Objects::nonNull)
                                .map((@NotNull Bar bar) -> new Foo(bar, someLocalValue)
                                .findAny());
}

Formal parameters. PARAMETERS.
@NotNull's @Target annotation includes PARAMETER.
Even it's comment states: "Formal parameter declaration".

Win.
Posted by at No comments :

2017-03-17

hosts: Blocking noxious sites effectively

Years ago I found this cool website: http://someonewhocares.org/hosts/

It blocks a lot of sites you don't normally want to visit :)

Also, I have a Hungary-specific compilation of anti-science / russian propaganda / simply dumb sites (and a few USA-specific ones) you don't want to stumble upon:

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#<hu-russian-propaganda>
127.0.0.1 888.hu
127.0.0.1 adatlistazo.hu
127.0.0.1 aktiv-blog.net
127.0.0.1 aktivblog.net
127.0.0.1 atomenergiainfo.hu # powered by rosatom :)
127.0.0.1 balrad.com
127.0.0.1 bejegyzes.com
127.0.0.1 civilkontroll.com
127.0.0.1 debmedia.hu
127.0.0.1 elkepeszto.net
127.0.0.1 hidfo.net
127.0.0.1 hidfo.ru
127.0.0.1 hir.club
127.0.0.1 hirado.top
127.0.0.1 hirarena.eu
127.0.0.1 hircentrum.top
127.0.0.1 hirek.in
127.0.0.1 hirek.top
127.0.0.1 hirekonline.net
127.0.0.1 hirexpressz.top
127.0.0.1 hirhatar.hu
127.0.0.1 hirkert.info
127.0.0.1 hirkozpont.eu
127.0.0.1 hirlistazo.com
127.0.0.1 hirma.info
127.0.0.1 hirmagazin.eu
127.0.0.1 hironline.club
127.0.0.1 hirportal.info
127.0.0.1 hirtop.in
127.0.0.1 hirtrafik.top
127.0.0.1 hirvilag.eu
127.0.0.1 hungarian.ruvr.ru
127.0.0.1 hunhir.hu
127.0.0.1 hunhir.info
127.0.0.1 hunhonlap.hu
127.0.0.1 hunsor.se
127.0.0.1 huntv.info
127.0.0.1 impulzus.net
127.0.0.1 internetfigyelo.wordpress.com
127.0.0.1 jovonk.info
127.0.0.1 kho.jobbikhosting.com
127.0.0.1 kitartas.net
127.0.0.1 kulfoldiapro.com
127.0.0.1 kuruc.info
127.0.0.1 legfrissebb.info
127.0.0.1 lovasistvan.hu
127.0.0.1 ma.hu
127.0.0.1 magyarifjak.org
127.0.0.1 magyarmegmaradasert.hu
127.0.0.1 magyarno.com
127.0.0.1 magyartudat.com
127.0.0.1 maivalosag.com
127.0.0.1 meteon.org
127.0.0.1 mindenegyben-blog.net
127.0.0.1 mindenegyben.net
127.0.0.1 mindenegybenblog.com
127.0.0.1 mokazona.eu
127.0.0.1 napihirozon.eu
127.0.0.1 napimigrans.com
127.0.0.1 nemadomahazamat.hu
127.0.0.1 nemzeti.net
127.0.0.1 nemzetiarcvonal.net
127.0.0.1 nemzetibulvar.hu
127.0.0.1 nemzetihirhalo.hu
127.0.0.1 netbulvar.com
127.0.0.1 netbulvar.eu
127.0.0.1 netceleb.eu
127.0.0.1 netceleb.hu
127.0.0.1 nethir.com
127.0.0.1 orientalista.hu
127.0.0.1 oroszhirek.hu
127.0.0.1 paxhungarica.org
127.0.0.1 rapidpress.info
127.0.0.1 realzoldek.hu
127.0.0.1 simsim.eu
127.0.0.1 sokkaljobb.hu
127.0.0.1 szabadriport.wordpress.com
127.0.0.1 szentkoronaradio.hu
127.0.0.1 thenews.hu
127.0.0.1 titkolthirek.hu
127.0.0.1 totalcar.top
127.0.0.1 tvhir.com
127.0.0.1 videohirek.com
127.0.0.1 vilaghalo.info
127.0.0.1 vilagom.hu
127.0.0.1 adatlistazo.hu
127.0.0.1 hidfo.net
127.0.0.1 xcore.in
#</hu-russian-propaganda>
  
#<hu-conteo-sites>
## These are Hungarian sites spreading bullshit (typical antivaxxer, anti-science, and/or fake news sites).
127.0.0.1 2perc.info
127.0.0.1 aktiv-hir.net
127.0.0.1 aktivhir.net
127.0.0.1 atomenergiainfo.hu
127.0.0.1 avilagtitkai.com
127.0.0.1 best-hir.com
127.0.0.1 bizony.eu
127.0.0.1 csucshatas.eu
127.0.0.1 csumida.com
127.0.0.1 dekutya.com
127.0.0.1 egeszsegmindenkinek.hu
127.0.0.1 epic-info.com
127.0.0.1 ez-zsir.net
127.0.0.1 ezt-figyeld.com
127.0.0.1 filmtar.in
127.0.0.1 frenetikus.com
127.0.0.1 hirado-online.net
127.0.0.1 hirexpressz.top
127.0.0.1 hirkert.info
127.0.0.1 hirnap.info
127.0.0.1 hirtop.in
127.0.0.1 husospizza.com
127.0.0.1 impulzus.net
127.0.0.1 index-video.com
127.0.0.1 magyarkozosseg.net
127.0.0.1 mindenegyben-blog.net
127.0.0.1 mindenegybenblog.hu
127.0.0.1 mindenegyhelyen.info
127.0.0.1 napi-hir.net
127.0.0.1 napiszarka.com
127.0.0.1 nemkutya.com
127.0.0.1 netextra.hu
127.0.0.1 nyaralok.net
127.0.0.1 origo-hir.net
127.0.0.1 origo-hirek.net
127.0.0.1 origo-online.info
127.0.0.1 origo-online.net
127.0.0.1 origoblog.net
127.0.0.1 origohir.net
127.0.0.1 origoonline.net
127.0.0.1 szupcsi.eu
127.0.0.1 tudnodkel.blogspot.com
127.0.0.1 tudnodkell.blogspot.com
127.0.0.1 tutihirek.com
127.0.0.1 vakarek.info
127.0.0.1 valoshirek.top
127.0.0.1 vattacukor.net
127.0.0.1 video-perc.net
127.0.0.1 hirnap.info
127.0.0.1 video-perc.net
#</hu-conteo-sites>
  
#<us-fake-news-sites>
127.0.0.1 100percentfedup.com
127.0.0.1 21stcenturywire.com
127.0.0.1 70news.wordpress.com
127.0.0.1 abcnews.com.co
127.0.0.1 activistpost.com
127.0.0.1 addictinginfo.org
127.0.0.1 americannewsx.com
127.0.0.1 americannews.com
127.0.0.1 anonnews.co
127.0.0.1 associatedmediacoverage.com
127.0.0.1 thebostontribune.com
127.0.0.1 beforeitsnews.com
127.0.0.1 beingliberal.org
127.0.0.1 bigamericannews.com
127.0.0.1 bigpzone.com
127.0.0.1 bipartisanreport.com
127.0.0.1 bizpacreview.com
127.0.0.1 bluenationreview.com
127.0.0.1 breitbart.com
127.0.0.1 cap-news.com
127.0.0.1 christwire.org
127.0.0.1 chronicle.su
127.0.0.1 civictribune.com
127.0.0.1 clickhole.com
127.0.0.1 coasttocoastam.com
127.0.0.1 collective-evolution.com
127.0.0.1 consciouslifenews.com
127.0.0.1 conservativeoutfitters.com
127.0.0.1 wideawakeamerica.com
127.0.0.1 countdowntozerotime.com
127.0.0.1 counterpsyops.com
127.0.0.1 creambmp.com
127.0.0.1 crooksandliars.com
127.0.0.1 dcclothesline.com
127.0.0.1 dcgazette.com
127.0.0.1 dailywire.com
127.0.0.1 dailybuzzlive.com
127.0.0.1 dailycurrant.com
127.0.0.1 derfmagazine.com
127.0.0.1 disclose.tv
127.0.0.1 drudgereport.com.co
127.0.0.1 duffleblog.com
127.0.0.1 duhprogressive.com
127.0.0.1 embols.com
127.0.0.1 empireherald.com
127.0.0.1 empirenews.net
127.0.0.1 empirenews.com
127.0.0.1 endingthefed.com
127.0.0.1 enduringvision.com
127.0.0.1 fprnradio.com
127.0.0.1 geoengineeringwatch.org
127.0.0.1 globalresearch.ca
127.0.0.1 govtslaves.info
127.0.0.1 gulagbound.com
127.0.0.1 hangthebankers.com
127.0.0.1 humansarefree.com
127.0.0.1 huzlers.com
127.0.0.1 ijr.com
127.0.0.1 ifyouonlynews.com
127.0.0.1 indecisionforever.com
127.0.0.1 infowars.com
127.0.0.1 inquisitr.com
127.0.0.1 intellihub.com
127.0.0.1 jonesreport.com
127.0.0.1 lewrockwell.com
127.0.0.1 liberalamerica.org
127.0.0.1 libertymovementradio.com
127.0.0.1 libertytalk.fm
127.0.0.1 libertyunyielding.com
127.0.0.1 libertyvideos.org
127.0.0.1 msnbc.com.co
127.0.0.1 msnbc.website
127.0.0.1 mediamass.net
127.0.0.1 megynkelly.us
127.0.0.1 ncscooper.com
127.0.0.1 nahadaily.com
127.0.0.1 nationalreport.net
127.0.0.1 naturalnews.com
127.0.0.1 newcenturytimes.com
127.0.0.1 newsexaminer.com
127.0.0.1 news-hound.com
127.0.0.1 newsbiscuit.com
127.0.0.1 newsbuzzdaily.com
127.0.0.1 newsmutiny.com
127.0.0.1 newswire-24.com
127.0.0.1 newslo.com
127.0.0.1 newswatch28.com
127.0.0.1 newswatch33.com
127.0.0.1 nodisinfo.com
127.0.0.1 now8news.com
127.0.0.1 nowtheendbegins.com
127.0.0.1 occupydemocrats.com
127.0.0.1 pakalertpress.com
127.0.0.1 politicalblindspot.com
127.0.0.1 politicalears.com
127.0.0.1 politicususa.com
127.0.0.1 prisonplanet.com
127.0.0.1 prisonplanet.tv
127.0.0.1 private-eye.co.uk
127.0.0.1 projectveritas.com
127.0.0.1 react365.com
127.0.0.1 realfarmacy.com
127.0.0.1 realnewsrightnow.com
127.0.0.1 redstate.com
127.0.0.1 redflagnews.com
127.0.0.1 reductress.com
127.0.0.1 rilenews.com
127.0.0.1 satiratribune.com
127.0.0.1 sprotspickle.com
127.0.0.1 theblaze.com
127.0.0.1 thefreethoughtproject.com
127.0.0.1 other98.com
127.0.0.1 thereporter.com
127.0.0.1 thedailysheeple.com
127.0.0.1 thenewsnerd.com
127.0.0.1 therundownlive.com
127.0.0.1 theuspatriot.com
127.0.0.1 truthfrequencyradio.com
127.0.0.1 twitchy.com
127.0.0.1 usuncut.com
127.0.0.1 usasupreme.com
127.0.0.1 unconfirmedsources.com
127.0.0.1 veteranstoday.com
127.0.0.1 wakingupwisconsin.com
127.0.0.1 wakingtimes.com
127.0.0.1 wideawakeamerica.com
127.0.0.1 winningdemocrats.com
127.0.0.1 witscience.org
127.0.0.1 wnd.com
127.0.0.1 worldnewsdailyreport.com
127.0.0.1 worldtruth.tv
127.0.0.1 zerohedge.com
#</us-fake-news-sites>

Do not forget to regularly update :)
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