# Ruby

**URL:** https://www.ruby-forum.com/c/ruby/7.md?page=637

[Latest](https://www.ruby-forum.com/latest.md) · [Categories](https://www.ruby-forum.com/categories.md) · [Tags](https://www.ruby-forum.com/tags.md)

**Page:** 638

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## [Rvm and passenger trouble](https://www.ruby-forum.com/t/rvm-and-passenger-trouble/185203)

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**Author:** [@scottnj](https://www.ruby-forum.com/u/scottnj)\
**Replies:** 0\
**Last updated:** [March 15, 2010, 11:45pm UTC](https://www.ruby-forum.com/t/rvm-and-passenger-trouble/185203 "2010-03-15T23:45:37Z")

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I am trying to get Passenger working with RVM. I must have something wrong in my apache2.conf, when I restart apache I get the following error Invalid command ‘PassengerRuby’, perhaps misspelled or defined by a modul…

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## [TkFont from file or data](https://www.ruby-forum.com/t/tkfont-from-file-or-data/185191)

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**Author:** [@guerra](https://www.ruby-forum.com/u/guerra)\
**Replies:** 2\
**Last updated:** [March 15, 2010, 11:26pm UTC](https://www.ruby-forum.com/t/tkfont-from-file-or-data/185191 "2010-03-15T23:26:42Z")

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Is there a way to load a TkFont from a file or from resources ? In a way similar to TkPhotoImage write TkFont.new(‘data’ =\> font\_data) Thanks Antonio

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## [Redcar install](https://www.ruby-forum.com/t/redcar-install/185118)

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**Author:** [@Une\_BSSSSvue](https://www.ruby-forum.com/u/Une_BSSSSvue)\
**Replies:** 8\
**Last updated:** [March 15, 2010, 10:39pm UTC](https://www.ruby-forum.com/t/redcar-install/185118 "2010-03-15T22:39:29Z")

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I’ve downloaded, using git redcar with : zsh-% git clone git://github.com/danlucraft/redcar.git zsh-% git checkout stable fatal: Not a git repository (or any of the parent directories): .git zsh-% cd redcar zsh-% gi…

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## [Ruby 1.9.1, rubygems, rvm. trouble getting sqlite3 to work](https://www.ruby-forum.com/t/ruby-1-9-1-rubygems-rvm-trouble-getting-sqlite3-to-work/185192)

<div class="topic-metadata">

**Author:** [@scottnj](https://www.ruby-forum.com/u/scottnj)\
**Replies:** 4\
**Last updated:** [March 15, 2010, 9:55pm UTC](https://www.ruby-forum.com/t/ruby-1-9-1-rubygems-rvm-trouble-getting-sqlite3-to-work/185192 "2010-03-15T21:55:36Z")

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i am trying to setup a slicehost server for rails development. i chose to use the ubuntu 9.10 karmic image. rvm looks really useful so i am attempting to use it. i am running into trying to use sqlite3 with ruby 1.9.1…

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## [Overriding new?](https://www.ruby-forum.com/t/overriding-new/185171)

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**Author:** [@ribbed21](https://www.ruby-forum.com/u/ribbed21)\
**Replies:** 18\
**Last updated:** [March 15, 2010, 9:46pm UTC](https://www.ruby-forum.com/t/overriding-new/185171 "2010-03-15T21:46:49Z")

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Hi everybody, given the following situation: class Parent def initialize print “magic\\n” end end class Child \< Parent def initialize print “more magic\\n” end end child = Child.new is there a way in which i c…

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## [Code Review: versions](https://www.ruby-forum.com/t/code-review-versions/185193)

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**Author:** [@raker\_t](https://www.ruby-forum.com/u/raker_t)\
**Replies:** 0\
**Last updated:** [March 15, 2010, 9:01pm UTC](https://www.ruby-forum.com/t/code-review-versions/185193 "2010-03-15T21:01:44Z")

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tfpt review “/shelveset:versions;REDMOND\\jdeville” Comment : FYI: version fixes for msi and changelog. These will be going in directly.

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## [Code Review: scl](https://www.ruby-forum.com/t/code-review-scl/185194)

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**Author:** [@Shri\_B](https://www.ruby-forum.com/u/Shri_B)\
**Replies:** 0\
**Last updated:** [March 15, 2010, 8:56pm UTC](https://www.ruby-forum.com/t/code-review-scl/185194 "2010-03-15T20:56:27Z")

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tfpt review “/shelveset:scl;REDMOND\\sborde” Comment : Adds support for SCRIPT\_LINES\_\_. If the constant is set, Ruby adds all loaded file into it mapped to the contents of those files. This enables RCov to work in a …

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## [JRuby Tomcat/Crash](https://www.ruby-forum.com/t/jruby-tomcat-crash/185158)

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**Author:** [@rogergue](https://www.ruby-forum.com/u/rogergue)\
**Replies:** 4\
**Last updated:** [March 15, 2010, 8:54pm UTC](https://www.ruby-forum.com/t/jruby-tomcat-crash/185158 "2010-03-15T20:54:07Z")

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Hi, I have a lot of the following entries in localhost.log. Has anyone an idea how to narrow down the cause of the problem ? BTW: I use Tomcat 6 and JRuby 1.4 Regards Roger SCHWERWIEGEND: Application Error file:/C…

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## [Java.lang.boolean error](https://www.ruby-forum.com/t/java-lang-boolean-error/185113)

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**Author:** [@someone-else](https://www.ruby-forum.com/u/someone-else)\
**Replies:** 11\
**Last updated:** [March 15, 2010, 8:46pm UTC](https://www.ruby-forum.com/t/java-lang-boolean-error/185113 "2010-03-15T20:46:22Z")

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Hello, I just started to learn JRuby. So I installed “jruby\_windowsjre\_1\_4\_0.exe” on my windows xp professional machine. I wanted to start with these examples: and I found the following error implementing the form e…

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## [Compiling to .class files](https://www.ruby-forum.com/t/compiling-to-class-files/185086)

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**Author:** [@entropic\_rune](https://www.ruby-forum.com/u/entropic_rune)\
**Replies:** 2\
**Last updated:** [March 15, 2010, 8:23pm UTC](https://www.ruby-forum.com/t/compiling-to-class-files/185086 "2010-03-15T20:23:40Z")

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Hi, I’m rather confused by the numerous options for generating .class files from Ruby classes. I’d like to be able to reference Ruby classes from Java code. compiler2, ruby2java, and jrubyc all seem to have this fu…

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## [\[Q\] print all ruby thread stacks?](https://www.ruby-forum.com/t/q-print-all-ruby-thread-stacks/184683)

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**Author:** [@cremes](https://www.ruby-forum.com/u/cremes)\
**Replies:** 8\
**Last updated:** [March 15, 2010, 7:42pm UTC](https://www.ruby-forum.com/t/q-print-all-ruby-thread-stacks/184683 "2010-03-15T19:42:40Z")

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I am trying to debug a ruby program that periodically hangs when run under jruby. It runs okay under MRI (1.8.7 and 1.9.1). Is there a way for me to install a signal handler that prints all of the thread callstacks an…

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## [ObjectSpace.each\_object unexpected results](https://www.ruby-forum.com/t/objectspace-each-object-unexpected-results/185186)

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**Author:** [@Matthew\_Closson](https://www.ruby-forum.com/u/Matthew_Closson)\
**Replies:** 0\
**Last updated:** [March 15, 2010, 6:40pm UTC](https://www.ruby-forum.com/t/objectspace-each-object-unexpected-results/185186 "2010-03-15T18:40:37Z")

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I was running an example from page 176 of IronRuby Unleashed and I got an unexpected error. I added a class definition for Human to make the example run. In MRI 1.9.1 the code works as expected. Thanks for any ins…

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## [Concurrent requests in a jruby glassfish sinatra environment](https://www.ruby-forum.com/t/concurrent-requests-in-a-jruby-glassfish-sinatra-environment/184822)

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**Author:** [@Ken\_at\_Inbox256](https://www.ruby-forum.com/u/Ken_at_Inbox256)\
**Replies:** 7\
**Last updated:** [March 15, 2010, 5:57pm UTC](https://www.ruby-forum.com/t/concurrent-requests-in-a-jruby-glassfish-sinatra-environment/184822 "2010-03-15T17:57:17Z")

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Hoping for guidance here… We are running a Sinatra app under the the Glassfish gem. I have remote processes that send it requests every 10 seconds - so in a given minute I see 6 requests per remote process. It takes \<…

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## [Jruby 1.4 - Yecht - How to convert YAML-String to object](https://www.ruby-forum.com/t/jruby-1-4-yecht-how-to-convert-yaml-string-to-object/184767)

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**Author:** [@dalton](https://www.ruby-forum.com/u/dalton)\
**Replies:** 4\
**Last updated:** [March 15, 2010, 5:36pm UTC](https://www.ruby-forum.com/t/jruby-1-4-yecht-how-to-convert-yaml-string-to-object/184767 "2010-03-15T17:36:47Z")

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Hello there, I try to convert a YAML-String (created with SnakeYAML) to a Java object. Is this possible somehow? I tried to do it with YAML.object\_maker but I am getting a NullPointerException when I try to access t…

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## [Block slowdown?](https://www.ruby-forum.com/t/block-slowdown/185176)

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**Author:** [@rogerdpack](https://www.ruby-forum.com/u/rogerdpack)\
**Replies:** 2\
**Last updated:** [March 15, 2010, 4:58pm UTC](https://www.ruby-forum.com/t/block-slowdown/185176 "2010-03-15T16:58:08Z")

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I noticed that methods that call yield and a few other “micro benchmarks” are slower in jruby than MRI \[at least on doze\]. Should I report this as a JIRA? Thanks. -rp

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## [Compiler #2 is under way!](https://www.ruby-forum.com/t/compiler-2-is-under-way/185108)

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**Author:** [@Ahmed\_Ragab\_Nabhan](https://www.ruby-forum.com/u/Ahmed_Ragab_Nabhan)\
**Replies:** 5\
**Last updated:** [March 15, 2010, 4:44pm UTC](https://www.ruby-forum.com/t/compiler-2-is-under-way/185108 "2010-03-15T16:44:40Z")

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Hi JRuby users, I am working on a software that makes use of Jruby, but I want to instantiate objects from JRuby classes inside a Java program. This requirement can be made through compiling JRuby class files into na…

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## [Ruby-prof for jruby](https://www.ruby-forum.com/t/ruby-prof-for-jruby/149086)

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**Author:** [@ADADAD](https://www.ruby-forum.com/u/ADADAD)\
**Replies:** 3\
**Last updated:** [March 15, 2010, 3:37pm UTC](https://www.ruby-forum.com/t/ruby-prof-for-jruby/149086 "2010-03-15T15:37:20Z")

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is there an alternative for ruby-prof (currently only has native C bindings) in JRuby ? Adam

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## [Ruby-forum broken?](https://www.ruby-forum.com/t/ruby-forum-broken/184987)

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**Author:** [@stickstone](https://www.ruby-forum.com/u/stickstone)\
**Replies:** 4\
**Last updated:** [March 15, 2010, 10:52am UTC](https://www.ruby-forum.com/t/ruby-forum-broken/184987 "2010-03-15T10:52:43Z")

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www.ruby-forum.com is showing me “Application error”, even for the home page. Anybody here know how to fix it? Thanks - Brian. $ curl -v http://www.ruby-forum.com/ About to connect() to www.ruby-forum.com port 80 (#0)…

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## [What Version?](https://www.ruby-forum.com/t/what-version/185115)

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**Author:** [@nickh](https://www.ruby-forum.com/u/nickh)\
**Replies:** 2\
**Last updated:** [March 15, 2010, 10:51am UTC](https://www.ruby-forum.com/t/what-version/185115 "2010-03-15T10:51:53Z")

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I am kinda new to ruby and new to ruby on rails. I originally had 1.9.1 installed but that caused errors when trying to install gems and compile them. I then installed 1.8.6 and then that has errors when trying to use…

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## [Calling Spring Beans from JRuby on Rails app](https://www.ruby-forum.com/t/calling-spring-beans-from-jruby-on-rails-app/185125)

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**Author:** [@Vineet\_Bhatia](https://www.ruby-forum.com/u/Vineet_Bhatia)\
**Replies:** 4\
**Last updated:** [March 15, 2010, 9:36am UTC](https://www.ruby-forum.com/t/calling-spring-beans-from-jruby-on-rails-app/185125 "2010-03-15T09:36:11Z")

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Hi, I have a JRuby on Rails application which needs to invoke a Spring Bean. ----- prod\_defs\_controller.rb ----- require ‘java’ require ‘path\_to\_jars/some.jar’ module XXX import com.xxx.SpringBeanName end class P…

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## [Win32console 1.3.0 Released](https://www.ruby-forum.com/t/win32console-1-3-0-released/185136)

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**Author:** [@luislavena](https://www.ruby-forum.com/u/luislavena)\
**Replies:** 2\
**Last updated:** [March 15, 2010, 9:11am UTC](https://www.ruby-forum.com/t/win32console-1-3-0-released/185136 "2010-03-15T09:11:01Z")

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win32console version 1.3.0 has been released! http://rubyforge.org/projects/winconsole http://github.com/luislavena/win32console http://rdoc.info/projects/luislavena/win32console Win32::Console allows controling the w…

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## [\[Bug #2956\] segfault](https://www.ruby-forum.com/t/bug-2956-segfault/185090)

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**Author:** [@Tomoki\_MAEDA](https://www.ruby-forum.com/u/Tomoki_MAEDA)\
**Replies:** 1\
**Last updated:** [March 15, 2010, 6:42am UTC](https://www.ruby-forum.com/t/bug-2956-segfault/185090 "2010-03-15T06:42:57Z")

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Bug #2956: segfault http://redmine.ruby-lang.org/issues/show/2956 e$B5/I\<\<Te(B: Tomoki MAEDA e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Normal e$B%+%F%4%je(B: core ruby -v: ruby 1.9.1p376 (2009-12-07 revision 26041) \[i48…

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## [\[Bug #2954\] wrong result of nkf with --numchar-input](https://www.ruby-forum.com/t/bug-2954-wrong-result-of-nkf-with-numchar-input/185077)

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**Author:** [@nobu](https://www.ruby-forum.com/u/nobu)\
**Replies:** 1\
**Last updated:** [March 15, 2010, 2:47am UTC](https://www.ruby-forum.com/t/bug-2954-wrong-result-of-nkf-with-numchar-input/185077 "2010-03-15T02:47:45Z")

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Bug #2954: wrong result of nkf with --numchar-input http://redmine.ruby-lang.org/issues/show/2954 e$B5/I\<\<Te(B: Nobuyoshi N. e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Normal e$BC4Ev\<Te(B: Yui NARUSE, e$B%+%F%4%je(B: ext,…

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## [Can I load dynamic configuratioins to a ruby program](https://www.ruby-forum.com/t/can-i-load-dynamic-configuratioins-to-a-ruby-program/185143)

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**Author:** [@milo\_luo](https://www.ruby-forum.com/u/milo_luo)\
**Replies:** 0\
**Last updated:** [March 15, 2010, 2:31am UTC](https://www.ruby-forum.com/t/can-i-load-dynamic-configuratioins-to-a-ruby-program/185143 "2010-03-15T02:31:24Z")

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Hi, folks I wrote a program and it get some parameters from a configuration file during every execution. But here comes the problem, I converted it to a exe file(using exerb, rubyscript2exe) in order to use this prog…

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## [April Phoenix Ruby User Group Meeting](https://www.ruby-forum.com/t/april-phoenix-ruby-user-group-meeting/185142)

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**Author:** [@byrnejb](https://www.ruby-forum.com/u/byrnejb)\
**Replies:** 0\
**Last updated:** [March 15, 2010, 1:55am UTC](https://www.ruby-forum.com/t/april-phoenix-ruby-user-group-meeting/185142 "2010-03-15T01:55:04Z")

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April Phoenix Ruby U. Group Meeting When: Monday, April 12, 2010 6:30pm door open. Laptop power and WiFi available. 7:00pm Show time 8:30pm Migrate to Four Peaks Brewery Topic: Lightning Talks, and MWRC2010 recap …

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## [Change emblem from folders/icons from ruby](https://www.ruby-forum.com/t/change-emblem-from-folders-icons-from-ruby/185138)

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**Author:** [@di3go](https://www.ruby-forum.com/u/di3go)\
**Replies:** 1\
**Last updated:** [March 14, 2010, 11:27pm UTC](https://www.ruby-forum.com/t/change-emblem-from-folders-icons-from-ruby/185138 "2010-03-14T23:27:20Z")

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Hi! There is any way to change folders/icons emblems from ruby or maybe from a shell script that i can call from ruby? Thanks!

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## [IIS + IronRuby](https://www.ruby-forum.com/t/iis-ironruby/185131)

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**Author:** [@rambor](https://www.ruby-forum.com/u/rambor)\
**Replies:** 3\
**Last updated:** [March 14, 2010, 9:18pm UTC](https://www.ruby-forum.com/t/iis-ironruby/185131 "2010-03-14T21:18:13Z")

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Hello, I know this has been asked quite a few times, but I don¹t see any progress on a full set of directions for using IIS to host IronRuby R./Rack applications. Anything out there that I¹m missing?

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## [Graffiti 1.0, SynCache 1.0, Whitewash 1.0](https://www.ruby-forum.com/t/graffiti-1-0-syncache-1-0-whitewash-1-0/185127)

<div class="topic-metadata">

**Author:** [@kmeaw](https://www.ruby-forum.com/u/kmeaw)\
**Replies:** 0\
**Last updated:** [March 14, 2010, 5:56pm UTC](https://www.ruby-forum.com/t/graffiti-1-0-syncache-1-0-whitewash-1-0/185127 "2010-03-14T17:56:54Z")

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Three components of the Samizdat open publishing system are finally released as stand-alone modules: Graffiti relational RDF store, SynCache thread-safe object cache, Whitewash whitelist-based HTML filter. Graffiti 1.…

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## [Newbie Help : Object](https://www.ruby-forum.com/t/newbie-help-object/185091)

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**Author:** [@jeromeqc](https://www.ruby-forum.com/u/jeromeqc)\
**Replies:** 13\
**Last updated:** [March 14, 2010, 5:27pm UTC](https://www.ruby-forum.com/t/newbie-help-object/185091 "2010-03-14T17:27:46Z")

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Hello, This question may be more to do with my understanding of OOP that the actual contructs of Ruby so please be patient with me. I am interested in visualizing data so am teaching myself to Programming using Ruby …

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## [Rake db:migrate giving error for postgreSQL](https://www.ruby-forum.com/t/rake-db-migrate-giving-error-for-postgresql/185116)

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**Author:** [@johnuseast](https://www.ruby-forum.com/u/johnuseast)\
**Replies:** 2\
**Last updated:** [March 14, 2010, 12:15pm UTC](https://www.ruby-forum.com/t/rake-db-migrate-giving-error-for-postgresql/185116 "2010-03-14T12:15:18Z")

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After adding another migrate, rake db:migrate simply gives me the following error: PGError: ERROR: relation “sessions” already exists seems the self\_down method does not do its job… thank you for any suggestions.

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