# File lib/buildr/groovy/shell.rb, line 27
      def launch(task)
        cp = Groovy.dependencies +
             project.compile.dependencies +
             [ project.path_to(:target, :classes) ] +
             task.classpath
        props = jrebel_props(project).merge(task.properties)
        java_args = jrebel_args + task.java_args

        groovy_home = nil
        if groovy_home
          cmd_args = " -classpath '#{cp.join(File::SEPARATOR)}'"
          trace "groovysh #{cmd_args}"
          system(File.expand_path("bin#{File::SEPARATOR}groovysh#{SUFFIX}", groovy_home) + cmd_args)
        else
          Java::Commands.java 'org.codehaus.groovy.tools.shell.Main', {
            :properties => props,
            :classpath => cp,
            :java_args => java_args
          }
        end
      end