[jira] Created: (JRUBY-3776) The install-gems goal throws exceptions

The install-gems goal throws exceptions
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                 Key: JRUBY-3776
                 URL: http://jira.codehaus.org/browse/JRUBY-3776
             Project: JRuby
          Issue Type: Bug
    Affects Versions: JRuby 1.3.1, JRuby 1.3
         Environment: OS X 10.5.7
java version "1.6.0_13"
Java(TM) SE Runtime Environment (build 1.6.0_13-b03-211)
Java HotSpot(TM) 64-Bit Server VM (build 11.3-b02-83, mixed mode)

            Reporter: Mario Camou
            Assignee: Thomas E Enebo


I have added an install-gems goal to my pom.xml as follows:

      <plugin>
        <groupId>org.jruby.plugins</groupId>
        <artifactId>jruby-rake-plugin</artifactId>
        <version>${jruby.version}</version>
        <executions>
          <execution>
            <id>install-gems</id>
            <phase>process-resources</phase>
            <goals>
              <goal>install-gems</goal>
            </goals>
            <configuration>
              <gems>--no-rdoc --no-ri  ci_reporter activesupport jruby-openssl rest-client json-jruby</gems>
            </configuration>
          </execution>
      <plugin>

When running "mvn install" I get the following:

[INFO] [jruby-rake:install-gems {execution: install-gems}]                                                                        
[INFO] ci_reporter already installed                                                                                              
[INFO] activesupport already installed                                                                                            
[INFO] jruby-openssl already installed                                                                                            
[INFO] rest-client already installed                                                                                              
[INFO] json-jruby already installed                                                                                              
[INFO] Generating ast.bat                                                                                                        
[WARNING] file:/Users/mario/.m2/repository/org/jruby/jruby-complete/1.3.1/jruby-complete-1.3.1.jar!/jruby/commands.rb:44:in `open': No such file or directory - File not found - file:/Users/mario/.m2/repository/org/jruby/jruby-complete/1.3.1/jruby-complete-1.3.1.jar!/META-INF/jruby.home/bin/ast.bat (Errno::ENOENT)                                                                            
[WARNING]       from file:/Users/mario/.m2/repository/org/jruby/jruby-complete/1.3.1/jruby-complete-1.3.1.jar!/jruby/commands.rb:44:in `generate_bat_stubs'                                                                                                        
[WARNING]       from file:/Users/mario/.m2/repository/org/jruby/jruby-complete/1.3.1/jruby-complete-1.3.1.jar!/jruby/commands.rb:38:in `each'                                                                                                                      
[WARNING]       from file:/Users/mario/.m2/repository/org/jruby/jruby-complete/1.3.1/jruby-complete-1.3.1.jar!/jruby/commands.rb:38:in `generate_bat_stubs'                                                                                                        
[WARNING]       from file:/Users/mario/.m2/repository/org/jruby/jruby-complete/1.3.1/jruby-complete-1.3.1.jar!/jruby/commands.rb:34:in `maybe_install_gems'                                                                                                        
[WARNING]       from maybe_install_gems:1

The problem seems to arise from the fact that the install-gems goal calls maybe_install_gems and sets the META-INF/jruby.home/bin directory as bindir. Then maybe_install_gems calls generate_bat_stubs unconditionally, which tries to generate the stubs. I've tried adding --no-wrappers with no effect. If I add "--bindir /tmp" to the <gems> tag I get:

[INFO] [jruby-rake:install-gems {execution: install-gems}]                                                                        
[INFO] ci_reporter already installed                                                                                              
[INFO] activesupport already installed                                                                                            
[INFO] jruby-openssl already installed                                                                                            
[INFO] rest-client already installed                                                                                              
[INFO] json-jruby already installed                                                                                              
[WARNING] ERROR:  While executing gem ... (Gem::CommandLineError)                                                                
[WARNING]     Please specify at least one gem name (e.g. gem build GEMNAME)


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