JRuby Users (read only) Google Group

[jruby-user] CallbackFactory deprecated; what is a contemporary example?

2013-05-22T02:46:00Z

Hello Jruby Folks,

So I am trying to implement some Jruby extensions using the BasicLibraryService class based on this blog entry

I'm using jruby-1.7.4 and it seem that the callbackFactory method on Ruby object is now setup to throw an exception because the that technique is deprecated.

Re: [jruby-user] Jruby 1.7.4 and Windows JLine

2013-05-21T21:12:32Z

Hi Charles,

it this url the right one?

[link]

I'll test this bug as it's blocking us from migrating to 1.7.x:
- we're on Windows mostly
- we make heavy use of irb/pry sessions with autocomplete

I saw on JIRA what you did and it makes sense to split these (possibly)

Re: [jruby-user] JRuby 1.7.4 warning - You have loaded ... arm-Linux/libjffi-1.2.so

2013-05-21T15:36:48Z

Hiro released a new jruby-launcher; perhaps you can try that out and see if
it fixes your issues?

- Charlie

Re: [jruby-user] Jruby 1.7.4 and Windows JLine

2013-05-21T15:16:40Z

JRuby 1.7.4 has already been released, but I have a fix in progress that
will go into 1.7.5. If you can't wait until then, you can grab a nightly
build or build it yourself.

Sorry for the delay on that one :-)

- Charlie

[jruby-user] Jruby 1.7.4 and Windows JLine

2013-05-21T07:38:04Z

Please, please fix the JRUBY-6996 issue.
You have promised it for this release.

Thanks and Regards,
Steffen

[jruby-user] Re: Introduction/Learning JRuby

2013-05-21T07:31:44Z

Hi, I'm a bit of an outsider here. I use JRuby for hobby programming. I
suspect with your Android project you may find you have stuffed the
whole slice of toast in your mouth at one time.

In my opinion learning JRuby is the same as learning Ruby. EXCEPT - you
can do a whole lot of things with JRuby that are difficult or almost

Re: [jruby-user] JRuby 1.7.4 warning - You have loaded ... arm-Linux/libjffi-1.2.so

2013-05-21T07:30:39Z

Added comment to
[link]

gist
[link]

[jruby-user] Introduction/Learning JRuby

2013-05-21T05:05:37Z

Hey guys,
I am relatively new to the Ruby Language been learning since the past
half month about it. I have actually also been assigned a student
project to develop an android app so i decided to choose jruby as a
platform as i am assuming it would help me improve my ruby programming
skills as well.

Re: [jruby-user] embedded db for Jruby

2013-05-17T19:01:25Z

thanks, I actually talked to Neo4j , again onerous license, you better have VC if you want to do anything commercial although they did say that "they would look the other way" , contractually you on the hook .

Dolphin is actually quite interesting , i had studied building something along those lines using memory pipes for local interchange

Re: [jruby-user] embedded db for Jruby

2013-05-17T18:02:39Z

I briefly looked at Titan and then at Neo4j whose license is to onerous to risk. I'll check it out again, graph dbs are the closest I guess to OO although their query api is not natural feeling i.e. not Ruby but I will also check out the pacer gem , perhaps it deals with that as well

thanks

Charles Monteiro

RE: [jruby-user] JRuby 1.7.4 warning - You have loaded ... arm-Linux/libjffi-1.2.so

2013-05-20T22:23:42Z

bash /opt/ruby/jruby/bin/jruby.sh <[link]> -S gem list
works.
gem list
warning.
Output below
============================== =======
craig@craigs:~$ uname -a
Linux craigs 3.8.0-21-generic #32-Ubuntu SMP Tue May 14 22:16:46 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
============================== =======

Re: [jruby-user] Jruby /Java start up booster

2013-05-20T10:59:45Z

thanks I started it , it shows it running on the IDEA run tab but I can't tell any discernible difference perhaps there's more setup that I have to do, and yes I was primarily starting it in the debugger but that's because I have a strange bug with Jruby and IDEA and that is that I can't start Sinatra in "run" mode, it returns immediately with a zero i.e. successful exit apparently. f I start in "debug" mode Sinatra will be spawned i.e. up and running.

Re: [jruby-user] JRuby 1.7.4 warning - You have loaded ... arm-Linux/libjffi-1.2.so

2013-05-19T06:29:27Z

That's a different error, but you can work around it by executing
jruby.sh with bash

e.g.

bash /opt/ruby/jruby/bin/jruby.sh -S gem

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RE: [jruby-user] JRuby 1.7.4 warning - You have loaded ... arm-Linux/libjffi-1.2.so

2013-05-19T05:54:18Z

When I did this I got an error:
craig@lug:/opt/ruby/jruby/bin$ jruby.sh <[link]> gem
/opt/ruby/jruby/bin/jruby.sh <[link]>: 61: /opt/ruby/jruby/bin/jruby.sh <[link]>: Bad substitution
Is this what you meant?

------------------------------ ------------------------------ ---------

Re: [jruby-user] JRuby 1.7.4 warning - You have loaded ... arm-Linux/libjffi-1.2.so

2013-05-19T05:02:39Z

That sounds like this issue: [link]

Not sure why it is still cropping up, but I haven't had time to create
a linux vm, with openjdk8 on it and try to repro.

If you run via jruby.sh, does the same error show up?

------------------------------ ------------------------------ ---------

[jruby-user] JRuby 1.7.4 warning - You have loaded ... arm-Linux/libjffi-1.2.so

2013-05-19T04:43:36Z

This is on an Intel I7 machine running ubuntu 13.04.
craig@lug:~$ jruby -v
jruby 1.7.4 (1.9.3p392) 2013-05-16 2390d3b on Java HotSpot(TM) 64-Bit Server VM 1.8.0-ea-b90 +indy [linux-amd64]
craig@lug:~$ which gem
/opt/ruby/jruby/bin/gem
craig@lug:~$ gem list
Java HotSpot(TM) 64-Bit Server VM warning: You have loaded library /opt/ruby/jruby-1.7.4/lib/nati ve/arm-Linux/libjffi-1.2.so <[link]> which might have disabled stack guard. The VM will try to fix the stack guard now.

[jruby-user] Rmldonkey repository update with the first Jruby + Swing version

2013-05-19T01:03:19Z

Hi...

I have updated my free time project with the first version that use
Jruby + Swing.. Its not perfect and there's no great pretensions but
here there is ... thats the reason of all the questions to this mail list

[link]

The future goals are package it on various OS for the end users. I hope

Re: [jruby-user] embedded db for Jruby

2013-05-18T01:17:13Z

Neo4j looks great, but I couldn't use it for the same reason (licensing).
Titan/Cassandra has filled that gap nicely for me, though, and pacer has
proved to be a great framework (even if a tad under documented). They both
seem to have smart, supportive people behind them.

Sent from my mobile device. Apologies for brevity.

Re: upgraded JRuby to 1.7.3 and 1.7.4, now I have openssl issue

2013-05-17T20:58:52Z

java version "1.6.0_37"
Java(TM) SE Runtime Environment (build 1.6.0_37-b06)
Java HotSpot(TM) Client VM (build 20.12-b01, mixed mode, sharing)

jruby 1.7.1 (1.9.3p327) 2012-12-03 30a153b on Java HotSpot(TM) 64-Bit
Server VM 1.7.0_07-b10 [Windows Server 2008-amd64]

I downgraded back to 1.7.1 because while I would like to upgrade and solve

Re: [jruby-user] Intermittent Bad File Descriptor on close

2013-05-17T20:46:27Z

Haha yeah… I will turn on that flag and upgrade to 1.7.4 and see if can reproduce it or not.

--
Matt Hauck

Re: upgraded JRuby to 1.7.3 and 1.7.4, now I have openssl issue

2013-05-17T20:08:03Z

what they said in release not - OpenSSL fixes and updated to newer Bouncy
Castle library
so it should work, one thing need to check jdk version?

--
Warm Regards,

Amit Pandya

End is not end, In-fact E.N.D is "EFFORT NEVER DIES"
If you get NO in answer, remember N.O. is "NEXT OPPORTUNITY"

Re: upgraded JRuby to 1.7.3 and 1.7.4, now I have openssl issue

2013-05-17T20:05:28Z

what jdk version are you using?

--
Warm Regards,

Amit Pandya

End is not end, In-fact E.N.D is "EFFORT NEVER DIES"
If you get NO in answer, remember N.O. is "NEXT OPPORTUNITY"
Impossible just separate the word - I M Possible

Re: [jruby-user] embedded db for Jruby

2013-05-17T19:13:30Z

I actually do use Sequel for a separate project and its a nice framework.

I had seen OrientDB before I'll give it further thought, a nice combo of graph and document , however I did not like the sql querying semantics

Charles Monteiro
jr...@smallruby.com

------------------------------ ------------------------------ ---------

Re: [jruby-user] embedded db for Jruby

2013-05-17T19:03:17Z

thanks, they claim its highly suitable , and yes graphs are better than document dbs in modeling natural object relations , the querying is not natural looking at all but overall I can't do their license

Charles Monteiro
jr...@smallruby.com

Re: [jruby-user] [ANN] Multidimensional Array - MDArray (0.5.0)

2013-05-17T18:50:29Z

Stephen,

Thanks for the support.

Do you use NumPy. May I ask what your use case is?

Cheers,

Rodrigo

--
Rodrigo Botafogo
Integrando TI ao seu negócio

Re: [jruby-user] embedded db for Jruby

2013-05-17T18:44:05Z

I would suggest H2 database in embedded mode (google for h2database,
no white space) if you're looking for a SQL database.

We've used it with many jruby based applications as it is a native
java library, and it's really more powerful and complient than sqlite
(where you'd need os dependent bindings).

Re: [jruby-user] embedded db for Jruby

2013-05-17T18:36:15Z

I don't know how suited neo4j is for embedded development but it is a graph
database. So perhaps it might be closer to being able to model OODBMS-like
constructs an RDBMS.

-Tom

--
blog: [link] twitter: tom_enebo
mail: tom.en...@gmail.com

Re: [jruby-user] embedded db for Jruby

2013-05-17T18:33:15Z

I've recently come across [link] which looks
like it could be worth exploring, it's based on TokyoCabinet. You'd
probably want the java binding and not the ruby binding. I've been thinking
about using [link] , which shouldnt be hard
to embed . I've not yet tried either.

Re: [jruby-user] pre-newbie help needed

2013-05-17T18:32:14Z

On top of Karol's mentioning of performance reasons...There is no nice API
for reflectively querying all classes loaded. Jar loading possibly could
be done via examining classpath (although classpath can change at runtime),
but JVM can also dynamically generate classes on the fly (or even get
loaded by JNI). The ability to just auto-process all defined things is

Re: [jruby-user] [ANN] Multidimensional Array - MDArray (0.5.0)

2013-05-17T18:14:30Z

Thanks, this is great progress towards permitting choice of using jruby -
as opposed to constrained to python. i'm not in a position to be an early
adopter but will follow this with keen interest.

2013/5/17 Rodrigo Botafogo <rodr...@rodrigobotafogo.com>

Re: [jruby-user] embedded db for Jruby

2013-05-17T17:44:05Z

For relational, Derby is nice because it actually ships with java 7
out of the box now. Lately I've been using Titan with Cassandra
embedded on the back end (accessed through the pacer gem), and it has
been awesome stuff so far. I'm not qualified to weigh the pros and
cons of graph vs relational across the board, but coming from a

[jruby-user] embedded db for Jruby

2013-05-17T17:28:11Z

hi all,

I'm looking for an embedded database that I would use for jrubyfx desktop app. Ideally it would be the same database that I would use for a common repository but it probably wont' be since I want to use Heroku add ons or other PaaS. I guess push come to shove I can do Amazon.

I went back to the Jruby book and that basically was about using rdms via ActiveRecord which is ok but not ideal. If I went down that path I know I could use Derby which is embeddable and can be run also in network mode. Packaging Derby with the app is painless. There's of course sqllite and given that every OS out there basically supports it including iOS and Android it might make a great choice but again ActiveRecord. Yes, there's a mobile component as well to my effort so that context is a consideration.

Re: [jruby-user] Intermittent Bad File Descriptor on close

2013-05-17T14:53:25Z

Pretty complicated setup...

Is it possible for you to get a raw Java backtrace for this? The Java
property to set would be jruby.backtrace.style=RAW, which should give us
all the Java line numbers down to the actual exception.

This may be easy to fix if there's a way for us to reproduce it. Usually I

Re: [jruby-user] [ANN] JRuby 1.7.4 Released

2013-05-17T14:05:46Z

Thank you for verifying this.
Now I need to figure out what's wrong in my machine.

Am 17.05.2013 um 14:15 schrieb "Kimpton, C (Chris)" <Chris.Kimp...@rabobank.com<ma ilto:Chris.Kimp...@rabobank.co m>>

Thanks – I had the latest rvm, but didn’t realise it could build directly from source ☺

Re: [jruby-user] pre-newbie help needed

2013-05-17T13:54:14Z

please note that `jar | grep` only works if the driver author named their
java.sql.Driver implementation with "Driver" in the class name.

since you mentioned 0% Java knowledge you can not expect to 100% understand
this :) - it's a Java (actually JDBC) thing ...

scanning (and thus loading) all .jar classes for driver implementations

[jruby-user] [ANN] Multidimensional Array - MDArray (0.5.0)

2013-05-17T13:14:03Z

MDArray
=======

MDArray is a multi dimensional array implemented for JRuby inspired by
NumPy ([link])
and Narray (narray.rubyforge.org) by Masahiro Tanaka. MDArray stands on
the shoulders of
Java-NetCDF and Parallel Colt.

NetCDF-Java Library is a Java interface to NetCDF files, as well as to many

Re: [jruby-user] pre-newbie help needed

2013-05-17T13:13:05Z

Weee!!!

Thank you so much. I now get:

WARNING: Cloudscape (instance c013800d-013e-b298-9d99-00c0a8 01c300) is attempting to boot the database /Users/pedzan/Source/OPCstuff/ ruby-stuff/db/OpcClientDb even though Cloudscape (instance c013800d-013d-b6e5-23bc-000931 8f4f00) may still be active. Only one instance of Cloudscape should boot a database at a time. Severe and non-recoverable corruption can result and may have already occurred.

upgraded JRuby to 1.7.3 and 1.7.4, now I have openssl issue

2013-05-17T12:34:05Z

I have been using JRuby 1.7.1 to build a war file for my rails app which I
then deploy in tomcat. I have been having issues parsing xml getting the
following stacktrace (attached). So I thought maybe upgrading JRuby to a
new version might fix the issue, I installed 1.7.3 and 1.7.4. I then
checked to make sure my jruby version was 1.7.4 from the windows command

RE: [jruby-user] [ANN] JRuby 1.7.4 Released

2013-05-17T12:15:11Z

Thanks – I had the latest rvm, but didn’t realise it could build directly from source :)

I now can repeat what you did – but its ok for me :(

$ rvm use jruby-1.7.4
Using /Users/kimptoc/.rvm/gems/jruby -1.7.4

$ which ruby
/Users/kimptoc/.rvm/rubies/jru by-1.7.4/bin/ruby

$ jruby -v
jruby 1.7.4 (1.9.3p392) 2013-05-17 fffffff on Java HotSpot(TM) 64-Bit Server VM 1.7.0_17-b02 [darwin-x86_64]

Re: [jruby-user] [ANN] JRuby 1.7.4 Released

2013-05-17T11:43:05Z

First you need to update rvm: rvm get head
Then: rvm install jruby-1.7.4

Von: <Kimpton>, "C (Chris)" <Chris.Kimp...@rabobank.com<ma ilto:Chris.Kimp...@rabobank.co m>>
Antworten an: "u...@jruby.codehaus.org<mailt o:u...@jruby.codehaus.org>" <u...@jruby.codehaus.org<mailt o:u...@jruby.codehaus.org>>

RE: [jruby-user] [ANN] JRuby 1.7.4 Released

2013-05-17T10:59:23Z

From your path, it looks like you are using rvm, which I have too (v 1.20.9) – but then it doesnt ‘know’ about 1.7.4 (rvm list known)

How did you install jruby?

Sent: 17 May 2013 11:06
To: u...@jruby.codehaus.org

Really great work. Thank you guys. :)

jruby –v returns jruby 1.7.2 (1.9.3p327) 2013-01-04 302c706 on Java HotSpot(TM) 64-Bit Server VM 1.6.0_45-b06-451-11M4406 [darwin-x86_64] on my machine. Path is: /Users/mjohann/.rvm/rubies/jru by-1.7.4/bin/jruby

Re: [jruby-user] [ANN] JRuby 1.7.4 Released

2013-05-17T10:05:49Z

Really great work. Thank you guys. :)

Can you reproduce it?

Cheers
Michael
Von: Thomas E Enebo <tom.en...@gmail.com<mailto:to m.en...@gmail.com>>

RE: [jruby-user] [ANN] JRuby 1.7.4 Released

2013-05-17T06:31:12Z

Congrats and thanks for the release.

Sent: 16 May 2013 20:51
To: u...@jruby.codehaus.org; d...@jruby.codehaus.org; ruby-talk ML

JRuby 1.7.4 Released - Thursday, May 16 2013

The JRuby community is pleased to announce the release of JRuby 1.7.4

Homepage: [link]
Download: [link]

Re: [jruby-user] pre-newbie help needed

2013-05-17T05:06:02Z

Hi Perry, you need to load the driver class (right) before connecting
using DriverManager.

Assuming the class name is right do smt like: Java::JavaClass.for_name
'com.ibm.db2j.jdbc.DB2jDriver'
Make sure you do this after the .jar files are required, yet before
connecting ...

Hope it helps, K.

Re: [jruby-user] Jruby /Java start up booster

2013-05-17T02:44:41Z

Charles: Intellij has some nailgun support , though I have not used it,
check under "Tools" in the menu. I'm not sure how well this integrates with
the debugger.

Re: [jruby-user] pre-newbie help needed

2013-05-17T02:19:35Z

Are these java classes view by the jre thats runs Jruby? Sounds like a
classpath problem...

[jruby-user] pre-newbie help needed

2013-05-17T01:49:01Z

Warning: I know zero about Java :-)

I am trying to connect (read only) to an IBM Cloudscape database. This is what eventually became Derby. I have a list of jar files:

db2j.jar
db2jcc.jar
db2jcview.jar
db2jnet.jar
db2jtools.jar

that a real Java application uses to access the same database. The database is in a local directory like:

Re: [jruby-user] Jruby /Java start up booster

2013-05-16T09:30:27Z

thanks, a while ago, I think I may have asked the same question before :), can't say that I tried it, the issue is whether that could integrate with starting up the debugger in IDEA
i.e within the context of Java processes kicked off from IDEA
Charles

[jruby-user] Intermittent Bad File Descriptor on close

2013-05-16T21:23:28Z

Hello folks. I have recently upgraded from 1.6.5.1 to 1.7.3, and am seeing a strange intermittent Bad File Descriptor error on closing a file. The offending line is a simple "File.read" (from Gem::Specification::load). After searching for a bit and trying to dig into the internals of RubyIO and RubyFile I figured I'd just ask you all for some pointers.

Re: [jruby-user] [ANN] JRuby 1.7.4 Released

2013-05-16T19:58:56Z

We mean 1.9.3, of course :-)

- Charlie