Fix erroneous 'wrong number of arguments' errors on JRuby 9.0.5.0.

Resolves #114.

.travis.yml

@@ -2,9 +2,9 @@ language: ruby
 dist: trusty
 sudo: false
 before_install:
-  - if [[ $TRAVIS_RUBY_VERSION =~ ^((1|2\.[012]|jruby-1)\.|ree$) ]]; then gem install rubygems-update --version '~> 2.7' --no-document && update_rubygems; else gem update --system; fi
+  - if [[ $TRAVIS_RUBY_VERSION =~ ^((1|2\.[012]|jruby-(1|9\.0))\.|ree$) ]]; then gem install rubygems-update --version '~> 2.7' --no-document && update_rubygems; else gem update --system; fi
   - gem --version
-  - if [[ $TRAVIS_RUBY_VERSION =~ ^((1|2\.[012]|jruby-1)\.|ree$) ]]; then gem install bundler --version '~> 1.17'; else gem install bundler; fi
+  - if [[ $TRAVIS_RUBY_VERSION =~ ^((1|2\.[012]|jruby-(1|9\.0))\.|ree$) ]]; then gem install bundler --version '~> 1.17'; else gem install bundler; fi
   - bundle --version
 before_script:
   - bundle update
@@ -27,6 +27,7 @@ rvm:
   - ruby-head
   - jruby-18mode
   - jruby-1.7.27
+  - jruby-9.0.5.0
   - jruby-9.1.17.0
   - jruby-9.2.9.0
   - jruby-head

appveyor.yml

@@ -57,6 +57,11 @@ environment:
 
     - RUBY_ENGINE: jruby
       JRUBY_VERSION: 1.7.27
+      JRUBY_BUNDLER_VERSION: "~> 1.17"
+
+    - RUBY_ENGINE: jruby
+      JRUBY_VERSION: 9.0.5.0
+      JRUBY_BUNDLER_VERSION: "~> 1.17"
 
     - RUBY_ENGINE: jruby
       JRUBY_VERSION: 9.1.17.0
@@ -69,8 +74,8 @@ install:
   - if %RUBY_ENGINE%==jruby appveyor DownloadFile https://repo1.maven.org/maven2/org/jruby/jruby-dist/%JRUBY_VERSION%/jruby-dist-%JRUBY_VERSION%-bin.zip -FileName vendor\jruby-dist-%JRUBY_VERSION%-bin.zip
   - if %RUBY_ENGINE%==jruby 7z x vendor\jruby-dist-%JRUBY_VERSION%-bin.zip -ovendor -y
   - if %RUBY_ENGINE%==jruby set PATH=C:\projects\tzinfo\vendor\jruby-%JRUBY_VERSION%\bin;%PATH%
-  - if %RUBY_ENGINE%==jruby if "%JRUBY_VERSION:~0,2%"=="1." gem install bundler --version "~> 1.17"
-  - if %RUBY_ENGINE%==jruby if not "%JRUBY_VERSION:~0,2%"=="1." gem install bundler
+  - if %RUBY_ENGINE%==jruby if defined JRUBY_BUNDLER_VERSION gem install bundler --version "%JRUBY_BUNDLER_VERSION%"
+  - if %RUBY_ENGINE%==jruby if not defined JRUBY_BUNDLER_VERSION gem install bundler
   - if v%RUBY_VERSION%==v193 appveyor DownloadFile https://github.com/philr/rubyinstaller/releases/download/1.9.3-p551-openssl-tls-1.1-1.2/ruby-1.9.3-p551-i386-mingw32.7z -FileName vendor\ruby-1.9.3-p551-i386-mingw32.7z
   - if v%RUBY_VERSION%==v193 7z e vendor\ruby-1.9.3-p551-i386-mingw32.7z -ovendor ruby-1.9.3-p551-i386-mingw32\bin\libeay32.dll ruby-1.9.3-p551-i386-mingw32\bin\ssleay32.dll ruby-1.9.3-p551-i386-mingw32\lib\ruby\1.9.1\i386-mingw32\openssl.so ruby-1.9.3-p551-i386-mingw32\lib\ruby\1.9.1\rubygems\ssl_certs\ca-bundle.pem
   - if v%RUBY_VERSION%==v193 copy /Y vendor\*eay32.dll C:\Ruby193\bin

lib/tzinfo/ruby_data_source.rb

@@ -1,5 +1,7 @@
 module TZInfo
-  using RubyCoreSupport::UntaintExt if RubyCoreSupport.const_defined?(:UntaintExt)
+  # Use send as a workaround for erroneous 'wrong number of arguments' errors
+  # with JRuby 9.0.5.0 when calling methods with Java implementations. See #114.
+  send(:using, RubyCoreSupport::UntaintExt) if RubyCoreSupport.const_defined?(:UntaintExt)
 
   # A DataSource that loads data from the set of Ruby modules included in the
   # TZInfo::Data library (tzinfo-data gem).

lib/tzinfo/zoneinfo_timezone_info.rb

@@ -1,5 +1,7 @@
 module TZInfo
-  using RubyCoreSupport::UntaintExt if RubyCoreSupport.const_defined?(:UntaintExt)
+  # Use send as a workaround for erroneous 'wrong number of arguments' errors
+  # with JRuby 9.0.5.0 when calling methods with Java implementations. See #114.
+  send(:using, RubyCoreSupport::UntaintExt) if RubyCoreSupport.const_defined?(:UntaintExt)
 
   # An InvalidZoneinfoFile exception is raised if an attempt is made to load an
   # invalid zoneinfo file.

test/tc_country.rb

@@ -2,7 +2,9 @@
 
 include TZInfo
 
-using TaintExt if Module.const_defined?(:TaintExt)
+# Use send as a workaround for erroneous 'wrong number of arguments' errors with
+# JRuby 9.0.5.0 when calling methods with Java implementations. See #114.
+send(:using, TaintExt) if Module.const_defined?(:TaintExt)
 
 class TCCountry < Minitest::Test
   def setup

test/tc_ruby_data_source.rb

@@ -2,7 +2,9 @@
 
 include TZInfo
 
-using TaintExt if Module.const_defined?(:TaintExt)
+# Use send as a workaround for erroneous 'wrong number of arguments' errors with
+# JRuby 9.0.5.0 when calling methods with Java implementations. See #114.
+send(:using, TaintExt) if Module.const_defined?(:TaintExt)
 
 class TCRubyDataSource < Minitest::Test
   def setup

test/tc_timezone.rb

@@ -2,7 +2,9 @@
 
 include TZInfo
 
-using TaintExt if Module.const_defined?(:TaintExt)
+# Use send as a workaround for erroneous 'wrong number of arguments' errors with
+# JRuby 9.0.5.0 when calling methods with Java implementations. See #114.
+send(:using, TaintExt) if Module.const_defined?(:TaintExt)
 
 class TCTimezone < Minitest::Test
 

test/tc_zoneinfo_timezone_info.rb

@@ -5,7 +5,9 @@
 
 include TZInfo
 
-using RubyCoreSupport::UntaintExt if RubyCoreSupport.const_defined?(:UntaintExt)
+# Use send as a workaround for erroneous 'wrong number of arguments' errors with
+# JRuby 9.0.5.0 when calling methods with Java implementations. See #114.
+send(:using, RubyCoreSupport::UntaintExt) if RubyCoreSupport.const_defined?(:UntaintExt)
 
 class TCZoneinfoTimezoneInfo < Minitest::Test
 

test/test_utils.rb

@@ -116,6 +116,10 @@ def assert_array_same_items(expected, actual, msg = nil)
   end
 
   def assert_sub_process_returns(expected_lines, code, extra_load_path = [], required = ['tzinfo'])
+    if RUBY_ENGINE == 'jruby' && JRUBY_VERSION.start_with?('9.0.') && RbConfig::CONFIG['host_os'] =~ /mswin/
+      skip('JRuby 9.0 on Windows cannot handle writing to the IO instance returned by popen')
+    end
+
     ruby = File.join(RbConfig::CONFIG['bindir'], 
       RbConfig::CONFIG['ruby_install_name'] + RbConfig::CONFIG['EXEEXT'])