enthusiasts united
From Parks Computing, a short word of advice in “On Recruiting” for the movers and shakers (and those who want to be movers and shakers): “The quality of your company’s software will never exceed the quality of your company’s software developers.” DZone is back with a few interesting posts: “OpenJDK – Is Now the Time?” starts by wondering is OpenJDK is reaching critical mass to the point where it should be considered instead of...
Feb 9, 2016 — 4 minute(s) read“O Java EE 7 Application Servers, Where Art Thou?” is a humorously-titled summary of the state of Java EE 7 deployment options, covering the full and web profiles for Java EE 7. It’s the sort of thing one wants to know, honestly: great job, Antonio. From Stack Overflow, “How to get started with Akka streams?” is a Scala question, not a Java one, but Akka has a Java implementation as well. The first...
Feb 5, 2016 — 2 minute(s) readA few days ago ##java happened to discuss sets and bit patterns and things like that, I happened to mention EnumSet and that I find it useful. The rest of the gang wanted to know how it actually measures up, so this is a short evaluation of how EnumSet stacks up for some operations. We are going to look at a few different things. EnumSet classes There are two different versions of EnumSet: * RegularEnumSet when...
Feb 4, 2016 — 4 minute(s) readZeroTurnaround has issued their latest developer productivity survey – if enough people take it, they’re giving money to Devoxx4Kids. It’s an interesting survey, done very well – probably the best execution of such a survey as I’ve ever seen (and I’ve seen a lot). Check it out, let’s get Devoxx4Kids that donation (and/or join ourselves).
Feb 3, 2016 — 1 minute(s) readEditor’s note before we get to the links: I’ve been trying to keep the links’ length down to a manageable four or five, so the frequency’s been higher than I might otherwise have desired (roughly every two or three days). I’m going to try a longer list of interesting links, and move the frequency down – we’ll see if that’s useful and palatable. The problem is that ##java (and the...
Feb 1, 2016 — 3 minute(s) readMutation Testing: Watching the Watchmen talks about the need for mutation testing, in addition to addressing the desire for unit testing. His point is: unit testing is good – do it. But it’s often not enough, and he promises to go more into mutation testing as an enhancement in future posts. JOOQ has published If Java Were Designed Today: The Synchronizable Interface, discussing what could have been designed as opposed to what we got with...
Jan 27, 2016 — 2 minute(s) readFrom ##java itself, Hot deploy to Jboss from Intellij using deployment scanner documents a problem someone had while trying to deploy from IDEA into JBoss, and discusses how to get it working. Of particular note: “The Intellij deployment options for ‘upload external changes’ (turn it on!) and ‘preserve file timestamps’ (turn it off!) have given me particular grief in the past; if you find that Intellij doesn’t seem to be picking up changes and...
Jan 25, 2016 — 2 minute(s) readEvery so often you need to see exactly what headers your HTTP-based application is working with. One way to look at the HTTP headers is to use an HTTP proxy: possibilities in this space include Fiddler, Charles Proxy, and Paros Proxy (with Paros’ website being the Sourceforge project site, which isn’t very confidence-inspiring). There are certainly others (feel free to send them to me, if you’ve used one you like!). You...
Jan 22, 2016 — 2 minute(s) readUse JUnit’s expected exceptions sparingly, from the JOOQ blog, says not to use JUnit‘s “expected exceptions” feature. (Or, more accurately, to use it “sparingly.”) It’s good advice, but it’s also largely limited to JUnit (with one main exception). What they’re addressing is the transition from this pattern: @Test public void testValueOfIntInvalid() { try { ubyte((UByte.MIN_VALUE) - 1); fail(); } catch (NumberFormatException e) {} } To this pattern: @Test(expected = NumberFormatException.class) public void testValueOfShortInvalidCase1...
Jan 21, 2016 — 4 minute(s) readSorry for the change of date format, folks. Some interesting links that came up include: Don’t tell me what to make, tell me how to make it, by David Whiting, talks about using Java 8’s Supplier to help clean up construction of objects. Actually pretty useful stuff – it’s a common pattern to use no-argument constructors with mutable objects, and Supplier<t> might help us use immutable objects more often...
Jan 20, 2016 — 3 minute(s) read