jruby

I am using Apache PDFBox for configuration of PDTextField 's on a PDF document where I load Lato onto the document using: font = PDType0Font.load( @j_pd_document, java.io.FileInputStream.new('/path/to/Lato-Regular.ttf') ) # => Lato-Regular font_name = pd_default_resources.add(font).get_name # => F4 I then pass the font_name into a default_appearance_string for the PDTextField like so: j_text_field.set_default_appearance("/#{font_name} 0 Tf 0 g") # where font_name is # passed in from above The issue now occurs when I proceed to invoke setValue on the PDTextField . Because I set the font_size in

I used jruby-1.7.0 and testing frame work Test::Unit::TestCase. Now I have updated some gems which caused me to use MiniTest::Test for testing, so I also upgraded to jruby-1.7.13. I have a rake task too which builds my gems with java *.class files instead of ruby *.rb files. Now many things dont work any more like 'rake test', or require "my_gem_xyz" from irb, getting errors like load error and ArrayIndexOutOfBoudsException. I have rvm installed to switch between rubies. How can I use *.class files in my self made gems like it worked before under jruby-1.7.0? (If I include the *.rb files in

A simple Rails 3 application tries to talk to SQL Server 2000 using activerecord-jdbc-adapter. I tried both microsoft jdbc driver and jtds driver. seems to connect to database OK. when it is time to SHOW data I get this error: ActiveRecord::StatementInvalid in PencilsController#show ActiveRecord::JDBCError: 'ROW_NUMBER' is not a recognized function name.: SELECT t.* FROM (SELECT ROW_NUMBER() OVER(ORDER BY [pencils].id) AS _row_num, [pencils].* FROM [pencils] WHERE [pencils].[id] = 1) AS t WHERE t._row_num BETWEEN 1 AND 1 The real problem here is the DB do not support proper LIMIT and OFFSET

I am trying to package a simple JRuby script into a jar file. The script uses Rubeus::Swing and runs correctly when executed with the JRuby interpreter. require 'rubygems' require 'rubeus' class Example01 extend Rubeus::Swing def show JFrame.new("Rubeus Swing Example 01") do |frame| frame.visible = true end end end Example01.new.show Once I package the script into a JAR with warble , when I execute: java -jar jtest.jar ... the JFrame window shows up and instantly closes. There is no indication of errors of any kind. Does anyone know why this happens? Warbler calls System.exit() after your main

I was watching this video here , where Robert Nicholson discusses P8, an implementation of PHP on the JVM. At some point he mentions that they aim to surpass native PHP in performance some time in the future. He mentions JRuby and Jython, which started out slower than their native counterparts, but eventually surpassed them. Quercus, another PHP interpreter on the JVM claims to be 4x faster than mod_php and is also worth of note. Does that mean that the general idea that the JVM is slower than C is wrong, or are there flaws in the original C implementations? Does that mean that the general

I'd like to have some cleanup code run when Rails is shutting down - is that possible? My situation is that I have a few threads in the background (I'm using jruby and calling into java) that live for the life of the process and I need to let them know to shut themselves down Thanks! Probably should just use the Ruby exit handler, which is a Kernel method: $ irb >> at_exit do ?> puts 'bye...' >> end => #<Proc:0xb79a87e4@(irb):1> >> exit bye... $ Within the context of a Rails Application, the best place to put such a file is in config/initializers . In my app, I needed to Flush the Redis

I change the ruby version from ruby 1.9.3-p125 to JRuby 1.7.0-preview1 with ruby-build . When I execute jruby -S bundle install on my project, there are some errors as below, ... Using bson (1.6.2) Installing bson_ext (1.6.2) with native extensions Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /Users/joshchang/.rbenv/versions/jruby-1.7.0-preview1/bin/jruby extconf.rb NotImplementedError: C extension support is not enabled. Pass -Xcext.enabled=true to JRuby or set JRUBY_OPTS or modify .jrubyrc to enable. (root) at /Users/joshchang/.rbenv/versions/jruby-1.7.0