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The JVM can't handle multiple versions of the same jar, as there is only one classpath.

A depends on B and C, which in turn depend on incompatible versions of D.

Congrats, you're screwed, unless you're running in an OSGi container.

The only reason this seldom a problem in Java land is because many popular core Java libs, including the whole frickin standard library and all the official extended specs like servlet maintain backwards compatibility, and the successful core libs do too (Guava, commons-whatever).

They do what he preaches.
Bam, successful platform!
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Show HN: Cross promote products from different stores
dammit, "expansively"
You can use the cli client that comes with InfluxDB. It is both faster and (for me) less painless to use. The Admin Interface always felt like an afterthought to me that was not well supported.
So at Tinkermill.org in Longmont CO, where I am a member, we have 3d printing machines.

We also have a good machine shop, and some of the members got together and refurbished an old injection molding machine.

So, we can 3d print a test, then can transform the finished design into instructions for the CNC machine, to produce a mold which goes into the injection molding machine.

So far no one has used this to prototype a part that started a business, but that is a great way to use a 3d printer, as a first run prototype which can then be used for other manufacturing.

A guy who is designing a game used both the 3d printer and laser cutter to make his prototype board and pieces.

We also have a few whizzes who have whipped up replacement parts and e.g. hose adapters for the dust collector in the woodshop.

Overall 3d printing is like the early days of the commercial Internet: people intuitively knew it was changing things, but had only scattered anecdotes as proof.
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To be clear: Auckland has a _legal_ prostitution industry, as does the rest of NZ. The censorship board can indeed ban certain media, but it's never really an issue here.
The planet will explode in five minutes.
Sure, hence the same problems of downloading, not more.
I was actually reading about mining uranium from asteroids recently. It seems like it would be impractical because the chemical processes (involving water) that concentrate uranium on Earth don't operate in asteroids. How does uranium mining and refinement actually work in space?
The Apple one attempts to use natural language, the Google one gets discontinued after it becomes somewhat well-known with a cult following, and Microsoft tries to push a competitor until after the Google one fails, at which point they adopt the standard even though their platform store is filled with junkware and no one cares anymore.
That sounds a bit unfair to me. In the end it's a company and they need to earn money somehow. Clustering is a very hard problem that takes a lot of manpower to get right.
Good question - It's not the APIs that are the issue, it's the actual IPv6 addresses in the packets on the wire that we need. All of our remote devices (typically on the order of 5 million+ for larger customers) have IPv6 addresses. We can use tunnel routers to get the traffic over IPv4 networks to the destination, but the applications themselves are addressing the devices with IPv6 addresses - which means, at least on the network segments that our many applications servers are running on, we need to have IPv6 routing working.

Everything we've done assumes an IPv6 network - trying to squish large device networks into IPv4 is just a losing battle for a huge number of reasons (address mobility, address conflict, large number of downstream devices (20,000+) per network segment, etc...)
Awesome! I've been wondering exactly about language based CAD.
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Exactly my thoughts!, Im just a little concerned on how to accurately determine when two different links are the same story, it would be very bad to join different stories into one by mistake
I applaud the attempt, and it does look nice, but my impression of visual programming environments is that they never scale, and it might be an inherent issue.

I have never met a single person that, with more than 5 minutes of time, preferes the "distance computation" as given in the skov example, to the simple mathematical (x-x)2+(y-y)2

Lamdu[0], which has been discussed on HN before, is more Haskellesque, and I have also not heard from anyone that it is actually useful (beyond very early Haskell teaching).

Personally, I'm at the other end (preferring the tersest practical language, K) but I understand the appeal of a visual programming language - it's just that I have never seen an example that delivers.

[0] http://www.lamdu.org/
That advice was spooky in mirroring startup founder advice: Have a strong track record, have experience in the field, before you attempt the risk...
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How old, and how do you manage their education?
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LuaJIT (of which DynASM is a component) is a JIT compiler for Lua (a dynamic language), which despite being basically a one-man project was beating contemporary Javascript compilers on performance and even the Dalvik Java compiler on Android (making it the fastest JIT compiler in existence for a dynamic language). Also, it targets multiple platforms (x86, x64, ARM, PPC, MIPS). It's been in maintenance mode for a while I think.

A couple interesting links about the internals:

http://lua-users.org/lists/lua-l/2009-11/msg00089.html

https://news.ycombinator.com/item?id=2617628
OpenSCAD is fantastic and, somehow, very "intuitive" for some people (while other people hate it). But it's pretty difficult to export anything from it to continue working on it. The only solution that I have found is to import scad files to FreeCAD and then try to "refine shape" which sometimes works great and sometimes doesn't.

But the import filter in FreeCAD is old and not maintained (for example, text/fonts were added to OpenSCAD after the filter was written, and the filter has not been upgraded to be able to deal with them).

You can certainly print directly from OpenSCAD and it works well, but when you go from 3D print to an industrial process, factories won't accept scad files, and you usually want to do things to your parts that OpenSCAD won't let you do, such as filleting angles. In a plastic 3D-printed prototype fillets don't matter, but the same part in aluminum or steel will have very sharp edges that will cut the users' hands if they're not filleted.
I think this is the key point. I have years of experience modelling for 3d animation and have been trying to print a complex object for the last few weeks. Modelling an object is one thing, but modelling a visually interesting object that doesn't require support structures everywhere is a real skill that takes some mastering
Greenspun's tenth rule?
What you are saying is true, but you are also setting a ridiculously high standards with examples like "differential, cable-driven wrist actuator with 3 degrees of freedom." There is a lot of room between that and what a beginner in solidworks or tinkercad or blender can do. Just some time browsing Tinkercad's gallery of things. I promise you most aren't products of mechanical engineers (nor will they threaten the jobs of mechanical engineers.

https://www.tinkercad.com/things/
Why not just use support structures?
Until all the MRAM and other persistent technologies hit. Then get ready for a generation of college graduates telling us old-timers that 'reboots' are unnecessary and loading immediately the previous system state is the new mason jar of systems goodness.
I believe Mr. Kemendo is being facecious.
No it isn't. OpenSCAD is great for mathematically defined objects, like gears and fasteners.

For everything else traditional parametric CAD is a million times better. If you don't mind closed source, give AutoCAD 360 a try (make sure you use it in parametric mode; direct modelling is a stupid): https://knowledge.autodesk.com/support/fusion-360/troublesho...

If you can't stand closed source then there are not many options. Most open source CAD software is worthless. The only one I've found that works as it should is SolveSpace - http://solvespace.com/ - but it does have a slightly 80s interface and... well SolveSpace is to Solidworks what Notepad is to Word. But it does do constraint-based sketching and parametric modelling right.
What other education a kid needs than to have parents who can stay with them all day and teach how to work from anywhere in the world?
I think the more important thing is how does the kid socialize?
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Could be a chainsaw:
https://www.youtube.com/watch?v=6Viwwetf0gU

Could be a flamethrower:
https://www.youtube.com/watch?v=Dwmh7ddPsk4

Could be a submachinegun:
https://www.youtube.com/watch?v=SNPJMk2fgJU
Piwik[0] is one open-source solution for self-hosting.

0. https://piwik.org/
The "maker revolution", such as it is, is driven by laser cutters. They're accurate, fast, reliable, work on large sheets, and have no consumables.

We're pushing 14 bar of 99.8% purity nitrogen through our 4kW fibre laser cutter to cut up to 12mm thick stainless steel.

Regular mild steel is reactive cut with 0.4 bar of oxygen and a trickle of nitrogen for lense cooling.

We go through 110 cubic meters of nitrogen on a slow week. We've got a 1400 litre liquid nitrogen bulk tank and 3500 litre liquid oxygen bulk tank.

If you bought a laser cutter earlier you probably have a CO2 laser so there's another consumable.

And we're getting slogged on lenses and protective glass windows. That's how they get you, the long tail of proprietary parts. I need to find a cheaper supplier of parts, but do you really want to put aftermarket lenses in your bosses one million dollar laser cutter?
If your starting position is "you're not worthy of being referred to in accordance with who you are", then I'm not interested in negotiating with you.

I don't quite know what you're implying. If you got rich on our stock, good for you. If you actually used to work here, you are fundamentally different from the people I've met so far and I'm glad you're not here any more.
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> ...my impression of visual programming environments is that they never scale, and it might be an inherent issue.

Eventually they won't need to.
Use a caret for your "2", you confused me with that equation.
You easily ripped out the orm and templating engine on a large project?

Would love to know how.
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I don't know why anyone would want to be the CEO of such a troubled company without either a huge golden parachute or a huge payoff in the event of an acquisition.
For the coding-oriented traveling workers, this is one very useful tool: https://codeanywhere.com/
Imagine all the wars when the oil money vanishes from the middle east.
If Mike Pall happens to read this, I feel like he's really selling the world short by not writing a book about dynamic language implementation. It could influence generations of programmers! Right now you have to piece together some of his mailing list posts and try to fill in the blanks, but a more thorough explanation from him would be invaluable.
I'm kind of surprised it requires a software fix. With the amount of maintenance checks and checklist procedures in aviation, "reboot plane every 2 weeks" doesn't sound like a big issue. What's worrysome is that the manufacturer didn't know about it and didn't put it on the checklists.
No, I'm advocating we stop allowing anchor babies which incentivizes massive numbers of illegal immigrants to sneak into our country and pop babies out so they can garner the full breadth of rewards of a US citizenship. If you don't think this is a problem then there's not much to talk about...
From that article:

> Simply recompile the purported source code twice: once with a second (trusted) compiler, and again using the result of the first compilation. If the result is bit-for-bit identical with the untrusted binary, then the source code accurately represents the binary

This sounds very familar to me. If I remember correctly, this is exactly what happens when you build GCC. GCC's 3-stage bootstrap process is well-known for a long time, as well as the decussion about whether this makes sense or is just paranoid.

It's nice to have this written down and analyzed throughly in a scientific paper, though.
To add to that, laser cutters are bloody dirty. Our machine is fully enclosed with a large (4 meter high) external dust extractor and self clean filters. The ultra fine dust that collects in the hopper is not something you want to be breathing.

And then theres the tons and tons of oxydized steel waste, stainless steel dross, and scrap that fall through that has to be sent for recycling but no one will take when the scrap prices are low like they are now.
Two options:

cmd /c mklink ...
New-Item -Type SymbolicLink -Path symlink -Target target

As for me, I rarely need to symlink files, so directory junctions work just fine, which don't need administrator privileges.
Except luajit has boxed 64bit integers: there's no reason you couldn't have them act just like lua 5.3 64 bit ints.
In the majority of real use cases you can narrow down to the 32bit ints already supported by luajit.
> the middle class didn't vote Trump, they sat the whole thing out.

Wrong. Trump won the election in a landslide of the electoral college and likely a majority of the popular vote if you audit the southwestern states you abhor to filter out "undocumented people" who voted. That is also not taking into account that Trump primarily campaigned in a small handful of states due to the nature of our electoral system and likely would have won larger in a system without the electoral college. He won the rust belt states which voted Obama into office for 8 years. Attempting to strip his victory from him by making empty statements about the white working class does little to advance any sort of counter-argument to his policies or achievements.
Unless you would happen to qualify for public assistance, you'd be nearly starving and exposed to the elements. You simply can't meet basic needs on your own with that without outside support. There are a few exceptions for temporary circumstances (You might be able to farm and live in your paid-off house, for example, but without utilities - and you'd be out of luck when your first property tax bill arrives).
Democracy? What democracy, this is an ochlocracy.
That's choosing not to write a bash script. That doesn't mean you couldn't.
i have more faith in black people than you i guess, and think they are perfectly capable of getting an id.
I'm not sure that is comparable. 3D printing isn't dead in professional use, research is still happening, has an active hobbyist community, ... it's just the "3D printer in every home" idea that Makerbot and others tried to peddle that's not happening.
Having read several customer development books, I second that recommendation.

One of the main takeaways of the book is that you should always start by asking factual questions. What do you do. What software do you use to do that. When's the last time you did that. How did you feel about it. Etc.

No "What ifs", no "would yous." Don't ask how much they would pay if [you could code whatever feature by next week].

That may seem obvious, but most people go for the second type of question right away.
Isn't that exactly what the documentation says? I mentions directory junctions, hard links and symlinks.

Mind you, hard links and directory junctions have existed for quite a while (going back at least to Windows 2000). Symlinks have been added in Vista.
If the wall is so "symbolic", what do you care if it's (further) built?
Show HN: How to Send an Android Application to Background and Reopen It
Yes, sort of like the belligerent democratic policies of the past 8 years that have us 20T in debt and counting...
Maybe an e-bike would be a good option for you?
I'm sick and tired of blog pages that require me to register before viewing them in a walled garden fashion.

As a protest, I have made a screenshot of the page to share with everyone - https://i.imgur.com/fbZGvex.jpg
K is an example of a language I can code with on my phone. Because you need only a small screen with code to see a lot of functionality and you do not need a lot of input but more thinking it works. Most modern visual programming attempts come from the drive to work on small screen without real keyboards and languages like K (APL likes) and Forth likes (like this one is based on) already work because the code is very terse and you do not have all the issues with copy/paste and scrolling like you do in most languages. I experiment quite a bit with programming while on the move (even walking) and I am close to having something which works about as well as normal coding. It takes ideas from K (oK) and different forth implementations.
I am wondering the choice of go as language to build a database.

I am a big fan of golang for some workload but the GC will kill performance in a database, wouldn't?

I am not being a brat I am seriously wondering how much GC affect the overall performance.
For some weird reason people these days believe curly brackets are the the best brackets.
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Remember when we used XML, and then people started making DSLs in XML and XML was the worst and too 'heavy' and having to write schemas was enterprise and awful and we are totes using lightweight schema free sexy JSON now?

I wonder what the new thing to replace enterprise JSON will be.
I assume you work in marketing. To you guys everything is marketing.
Hey, I usually take notes when reading or watching stuff. If you're willing to read through my semi-coherent org-mode notes, it summarizes the talk better than a full transcript.[0]

[0]http://pastebin.com/bmF0xc7y
From what I've read, Lua has apparently done a poor job at maintaining backwards compatibility and Mike Pall is unwilling to support those kinds of changes.

I don't have enough context to know if breaking backwards compatibility is justified or not. I generally think it's a poor decision that's hostile to developers to break backwards compatibility in a programming language without providing a clear migration path. Issues between 5.1, 5.2, and 5.3 definitely seem to have splintered the community.

http://www.freelists.org/post/luajit/Port-bitop-to-53,1
Where does that 0.9 euro number come from? I have never seen any charges associated with SEPA transfers.
From the homepage:

OpenImageIO is a library for reading and writing images, and a bunch of related classes, utilities, and applications. There is a particular emphasis on formats and functionality used in professional, large-scale animation and visual effects work for film. OpenImageIO is used extensively in animation and VFX studios all over the world, and is also incorporated into several commercial products.
Using designs on Dribble
Is it ok if I use designs on Dribble for my applications?
To be fair, the symlink functionality is present in NTFS since XP (though MS never provided a tool to make use of them) and there is a filter driver (Open Source, both 32 bit and 64 bit) by Masatoshi Kimura, see here (search on the page for "driver"):

http://schinagl.priv.at/nt/hardlinkshellext/linkshellextensi...

that provides symlinks on XP and possibly Server 2003 (additionally without any issues with UAC, which is simply not there).
Could it be that this is excellent advice for an individual, but for society it may be better if some obsess over a single idea?
it's to offer normal ethernet service in buildings that are connected through some other kind of metro network.

in other words, it's cheaper than making your customer buy a bunch of weird proprietary network equipment to hook up their office wifi.
Yes - absolutely. Why does Joe/Joan User have to rely on their Admin having a clue to use this Feature?

We're talking symbolic links here. This is a very handy and convenient feature in userspace. Or, it
should be.
DynASM used in MoarVM too, modern VM for Rakudo (implementation of Perl 6).
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Try living somewhere else. You chose to live in the city.
JSON Schema validation exists (e.g. the IAB standards).
On Windows 10 Home, the Windows version gives me

"This app can't run on your PC

To find a version for your PC, check with the software publisher."
they don't. they tell you to file a bunch of FOIA requests on yourself and then appeal if feel like you'd win.

pretty ambiguous.
I absolutely agree.

How much upstream effort must occur to facilitate downstream userspace day-to-day function(s)?

[edit]

I'll perform whatever action is required to enable user functionality. That's what I'm here for.

But I don't agree/understand why the user-use of something as basic as symbolic links is dependent on an Admin having a clue.
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Because if your object is tricky enough, you'll have to spend a lot of time removing them, risking damage to the object. Dissolvable supports are a thing, but I haven't seen many people with double-headed extruders in their printers.
> 1/3 of the female students at my university did sex work to pay the rent

I find it hard to believe there's enough customers to make this viable, let alone that it actually happens. Do you have some source to back this claim up?
Then you should be happy that Go has been putting a lot of effort into making its GC as non-blocking as possible. There was an interesting blog post from Pusher yesterday (https://blog.pusher.com/golangs-real-time-gc-in-theory-and-p...) about how they had to learn how the GC works and how to make the most of it; the links give more information into golang's internal evolution.
No, not without explicit permission by the designer. They post on Dribbble so you find and hire them, not to give away stuff.
this made me think of you http://www.foxnews.com/opinion/2016/12/03/im-democrat-and-im...
theres a few different ones. i think authy, duo, and last pass all provide a similar service.
Again, how would this prevent the company from just looking at the applicants with their eyes and discriminating against the ones they don't want?
I've been using this template for quite a while now, and my cv stands out, every time :)
Because men that having something to fuck end up having babies. Having a child for a majority of men is a life changing experience that makes them less likely to be violent (expect in defense of the child).
You're thinking of boron.
Can this thing blow up? I mean is there an equivalent in fusion technology to a meltdown in fission tech?
It it becomes very cheap, it could change industry.
Performance usually varies greatly with your set up. I have not tried the 1.1 release but earlier relases suffered very badly when authentication was turned on and when data came out of order. Nobody cares about the ideal case, it's never encountered.
Oh well Django had a good run for me but I don't use spyware. I guess something similar can be built up using Flask.
When I was listening to the part about breakage vs accretion, I kept thinking back to the Nix pkg manager from NixOS. It does a pretty good job of separating out the artifacts by indexing them by version number and a hash of the username (i.e. artifact-name = sha($user) + $project-name + $semver). There have to be other examples of pkg managers that do this kind of thing too...