Comments for DAVEBLOG 5000 http://www.naildrivin5.com/daveblog5000 Stuff that happens to Dave Tue, 11 Aug 2009 20:09:24 -0400 http://wordpress.org/?v=2.8.4 hourly 1 Comment on Why maven drives me absolutely batty by Dave http://www.naildrivin5.com/daveblog5000/?p=111&cpage=1#comment-72 Dave Tue, 11 Aug 2009 20:09:24 +0000 http://www.naildrivin5.com/daveblog5000/?p=111#comment-72 Coming from Ruby to Java you must be pulling your hair out. Coming from Ruby to Java you must be pulling your hair out.

]]> Comment on Why maven drives me absolutely batty by rogerdpack http://www.naildrivin5.com/daveblog5000/?p=111&cpage=1#comment-71 rogerdpack Tue, 11 Aug 2009 20:07:46 +0000 http://www.naildrivin5.com/daveblog5000/?p=111#comment-71 oh wow I totally hear you. After coming to java from ruby, I'm totally in agreeance. my gripes [probably because of lack of experience, but here they are]: 1) maven doesn't cleanup right sometimes--if you do too much moving around of modules, you are toast [I think it leaves old garbage behind in the ~/.m2/repository directory structure--every so often I have to nuke it--running mvn clean ironically does not clean maven]. 2) it re-runs unit tests for modules that haven't changed since the last build, nor have their dependencies changed since the last build. I've wasted probably hours re-running tests on code that hasn't changed. 3) doesn't have an option "fork processes and run as many tests as you can at the same time to use all cores" [which at least I want]. That being said, it's not...too hard to setup. It only checks for updated artifacts once a day for me, which...I'm ok with. And it actually works for large scale projects without horrible complexity, which is saying quite a bit. It's probably a great step up from ant :) Oh and the documentation is awful. And it can't run junit with testNg tests at the same time. But--welcome to java! -r oh wow I totally hear you.
After coming to java from ruby, I’m totally in agreeance.

my gripes [probably because of lack of experience, but here they are]:

1) maven doesn’t cleanup right sometimes–if you do too much moving around of modules, you are toast [I think it leaves old garbage behind in the ~/.m2/repository directory structure--every so often I have to nuke it--running mvn clean ironically does not clean maven].

2) it re-runs unit tests for modules that haven’t changed since the last build, nor have their dependencies changed since the last build. I’ve wasted probably hours re-running tests on code that hasn’t changed.

3) doesn’t have an option “fork processes and run as many tests as you can at the same time to use all cores” [which at least I want].

That being said, it’s not…too hard to setup. It only checks for updated artifacts once a day for me, which…I’m ok with. And it actually works for large scale projects without horrible complexity, which is saying quite a bit. It’s probably a great step up from ant :)

Oh and the documentation is awful. And it can’t run junit with testNg tests at the same time. But–welcome to java!

-r

]]> Comment on Using ThreadLocal and Servlet Filters to cleanly access JPA an EntityManager by Effective using Java Concurrency part-1 « When IE meets SE… http://www.naildrivin5.com/daveblog5000/?p=39&cpage=1#comment-70 Effective using Java Concurrency part-1 « When IE meets SE… Sat, 08 Aug 2009 22:30:17 +0000 http://www.naildrivin5.com/daveblog5000/?p=39#comment-70 [...] Thread-Local Variables In Java Threading lightly, Part 3: Sometimes it’s best not to share Using ThreadLocal and Servlet Filters to cleanly access JPA an EntityManager Thread-local variables in Java Introduction to reducing thread contention in Java Possibly related [...] [...] Thread-Local Variables In Java Threading lightly, Part 3: Sometimes it’s best not to share Using ThreadLocal and Servlet Filters to cleanly access JPA an EntityManager Thread-local variables in Java Introduction to reducing thread contention in Java Possibly related [...]

]]> Comment on Using ThreadLocal and Servlet Filters to cleanly access JPA an EntityManager by jaxent http://www.naildrivin5.com/daveblog5000/?p=39&cpage=1#comment-69 jaxent Tue, 28 Jul 2009 17:24:46 +0000 http://www.naildrivin5.com/daveblog5000/?p=39#comment-69 Thanks for posting that. It was one of those, "Why didn't I think of that?" moments. Saves me a lot time and resource leak potential. Thanks for posting that. It was one of those, “Why didn’t I think of that?” moments. Saves me a lot time and resource leak potential.

]]> Comment on Lead or Bleed by Leading by Bleeding « Two Guys Arguing http://www.naildrivin5.com/daveblog5000/?p=133&cpage=1#comment-63 Leading by Bleeding « Two Guys Arguing Tue, 26 May 2009 02:46:30 +0000 http://www.naildrivin5.com/daveblog5000/?p=133#comment-63 [...] on 05.25.09 Tonight Chad Fowler posted on twitter an interesting comment and link to a blog post by David Copeland and his take on his knowledge of technologies; from the bleeding edge to those "on the way [...] [...] on 05.25.09 Tonight Chad Fowler posted on twitter an interesting comment and link to a blog post by David Copeland and his take on his knowledge of technologies; from the bleeding edge to those “on the way [...]

]]> Comment on Why maven drives me absolutely batty by yellek http://www.naildrivin5.com/daveblog5000/?p=111&cpage=1#comment-61 yellek Thu, 14 May 2009 02:10:27 +0000 http://www.naildrivin5.com/daveblog5000/?p=111#comment-61 Given that you have reccommended Ant and Ivy I was wondering if you had tried Gant or Gradle? If not have you used Groovy scripting in Ant tasks? I'd be interested in your comparisons. Given that you have reccommended Ant and Ivy I was wondering if you had tried Gant or Gradle? If not have you used Groovy scripting in Ant tasks? I’d be interested in your comparisons.

]]> Comment on Why maven drives me absolutely batty by nick http://www.naildrivin5.com/daveblog5000/?p=111&cpage=1#comment-60 nick Wed, 13 May 2009 22:34:13 +0000 http://www.naildrivin5.com/daveblog5000/?p=111#comment-60 Excellent post, Dave. You could also add: *Maven does not handle concurrent builds.* If your CI server is configured to run builds in parallel, you will see spurious results due to multiple mvn processes writing to the same ~/.m2/repository . *Maven will install buggy artifacts* If you have a multi-module build, maven will install artifacts to the local repository before the entire build has finished. This is a major problem if module A is used and tested by module B, where module B gets built and tested after module A has been installed to the repository. Excellent post, Dave.

You could also add:

*Maven does not handle concurrent builds.*
If your CI server is configured to run builds in parallel, you will see spurious results due to multiple mvn processes writing to the same ~/.m2/repository .

*Maven will install buggy artifacts*
If you have a multi-module build, maven will install artifacts to the local repository before the entire build has finished. This is a major problem if module A is used and tested by module B, where module B gets built and tested after module A has been installed to the repository.

]]> Comment on Why maven drives me absolutely batty by Sonatype Blog » We’re Used to the Axe Grinding http://www.naildrivin5.com/daveblog5000/?p=111&cpage=1#comment-59 Sonatype Blog » We’re Used to the Axe Grinding Wed, 13 May 2009 22:09:21 +0000 http://www.naildrivin5.com/daveblog5000/?p=111#comment-59 [...] more about the person that wrote the post than about Maven itself. Here’s where I think the most recent post goes [...] [...] more about the person that wrote the post than about Maven itself. Here’s where I think the most recent post goes [...]

]]> Comment on Java Annotations – Java’s love of configuration over convention by curtcox http://www.naildrivin5.com/daveblog5000/?p=78&cpage=1#comment-58 curtcox Tue, 24 Mar 2009 04:09:09 +0000 http://www.naildrivin5.com/daveblog5000/?p=78#comment-58 You should check out Stapler, the web framework that is used by Hudson. Stapler https://stapler.dev.java.net/ Hudson https://hudson.dev.java.net/ You should check out Stapler, the web framework that is used by Hudson.

Stapler
https://stapler.dev.java.net/

Hudson
https://hudson.dev.java.net/

]]> Comment on Interviewing the Interviewer: A Rubric by Introspection 2.0 http://www.naildrivin5.com/daveblog5000/?p=47&cpage=1#comment-53 Introspection 2.0 Thu, 18 Dec 2008 15:33:52 +0000 http://www.naildrivin5.com/daveblog5000/?p=47#comment-53 [...] we have Davetron5000’s Interview Rubric, a list of questions for prospective employers.   It’s a good read for interviewers and [...] [...] we have Davetron5000’s Interview Rubric, a list of questions for prospective employers.   It’s a good read for interviewers and [...]

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