[BUILDR-709] Exception in jacoco.rb [TypeError : can't convert Array into String]

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4.20
• Fix Version/s: 1.4.24
• Component/s: Extensions
• Environment: Windows 7, JRuby 1.7.16.1
• Assignee: Peter Donald
• Reporter: Ross Mahony
• Created: 26/Nov/15 12:45
• Updated: 26/Nov/15 22:44
• Resolved: 26/Nov/15 22:44

Description

Getting the following error in the jacoco.rb file

• • Invoke E:/MAVEN/repository/org/jacoco/org.jacoco.agent/0.5.10.201208310627/org.jacoco.agent-0.5.10.201208310627-runtime.jar (first_time, not_needed)
    Buildr aborted!
    TypeError : can't convert Array into String
    org/jruby/RubyString.java:1159:in `+'
    E:/jruby-1.7.16.1/lib/ruby/gems/shared/gems/buildr-1.4.20-java/addon/buildr/jacoco.rb:151:in `ProjectExtension'
    org/jruby/RubyProc.java:271:in `call'
    E:/jruby-1.7.16.1/lib/ruby/gems/shared/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `execute'
    org/jruby/RubyArray.java:1613:in `each'
    E:/jruby-1.7.16.1/lib/ruby/gems/shared/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `execute'
    E:/jruby-1.7.16.1/lib/ruby/gems/shared/gems/buildr-1.4.20-java/lib/buildr/core/application.rb:662:in `invoke_with_call_chain'
    E:/jruby-1.7.16.1/lib/ruby/gems/shared/gems/buildr-1.4.20-java/lib/buildr/core/application.rb:660:in `invoke_with_call_chain'
    E:/jruby-1.7.16.1/lib/ruby/1.9/monitor.rb:211:in `mon_synchronize'
    E:/jruby-1.7.16.1/lib/ruby/1.9/monitor.rb:210:in `mon_synchronize'
    E:/jruby-1.7.16.1/lib/ruby/gems/shared/gems/buildr-1.4.20-java/lib/buildr/core/application.rb:648:in `invoke_with_call_chain'
    E:/jruby-1.7.16.1/lib/ruby/gems/shared/gems/buildr-1.4.20-java/lib/buildr/core/application.rb:643:in `invoke'
    E:/jruby-1.7.16.1/lib/ruby/gems/shared/gems/buildr-1.4.20-java/lib/buildr/core/test.rb:262:in `execute'
    E:/jruby-1.7.16.1/lib/ruby/gems/shared/gems/buildr-1.4.20-java/lib/buildr/core/application.rb:662:in `invoke_with_call_chain'
    E:/jruby-1.7.16.1/lib/ruby/1.9/monitor.rb:211:in `mon_synchronize'
    E:/jruby-1.7.16.1/lib/ruby/gems/shared/gems/buildr-1.4.20-java/lib/buildr/core/application.rb:648:in `invoke_with_call_chain'
    E:/jruby-1.7.16.1/lib/ruby/gems/shared/gems/buildr-1.4.20-java/lib/buildr/core/application.rb:643:in `invoke'
    E:/jruby-1.7.16.1/lib/ruby/gems/shared/gems/buildr-1.4.20-java/lib/buildr/core/test.rb:158:in `run_local_tests'
    org/jruby/RubyArray.java:1613:in `each'

Was able to fix it by updating line 151:
project.test.options[:java_args] = (project.test.options[:java_args] || []) + [agent_config]

to:
project.test.options[:java_args] = ([project.test.options[:java_args]] || []) + [agent_config]