Javadoc : cannot load class java.com.sun.tools.javadoc.Main

Looks like tools.jar is not included in the classpath.

This the calling line:
package(:zip, :id=>"#

-docs").include(Java::Commands.javadoc(project("ode").projects).target) unless ENV["JAVADOC"] =~ /^(no|off|false|skip)$/i

This is a trace:

• • Invoke ode:jca-server
  • Invoke ode:tools
  • Invoke ode:utils
  • Invoke ode:agents
    Generating Javadoc for C:/Users/vanto/dev/svn/ode-trunk
    javadoc -d -verbose ode:agents ode:axis2 ode:axis2-war ode:bpel-api ode:bpel-api-jca ode:bpel-compiler ode:bpel-connector ode:bpel-dao ode:bpel-epr ode:bpel-obj ode:bpel-ql ode:bpel-runtime ode:bpel-schemas ode:bpel-scripts ode:bpel-store
    ode:bpel-test ode:dao-hibernate ode:dao-hibernate-db ode:dao-jpa ode:dao-jpa-ojpa-derby ode:jacob ode:jbi ode:jca-ra ode:jca-server ode:scheduler-simple ode:tools ode:utils
    Buildr aborted!
    NameError : cannot load Java class java.com.sun.tools.javadoc.Main
    c:/local/buildr-1.4.0/lib/ruby/site_ruby/shared/builtin/javasupport/java.rb:51:in `method_missing'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/java/commands.rb:189:in `javadoc'
    C:/Users/vanto/dev/svn/ode-trunk/Rakefile:610
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/project.rb:225:in `instance_exec'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/project.rb:225:in `define'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/project.rb:636:in `execute'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/application.rb:146:in `switch_to_namespace'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/project.rb:635:in `execute'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/application.rb:636:in `invoke_with_call_chain'
    c:/local/buildr-1.4.0/lib/ruby/1.8/monitor.rb:191:in `mon_synchronize'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/application.rb:622:in `invoke_with_call_chain'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/application.rb:617:in `invoke'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/util.rb:204:in `to_proc'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/project.rb:281:in `each'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/project.rb:281:in `projects'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/project.rb:971:in `projects'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/application.rb:400:in `raw_load_buildfile'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/application.rb:218:in `load_buildfile'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/application.rb:502:in `standard_exception_handling'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/application.rb:213:in `load_buildfile'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/application.rb:137:in `run'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/application.rb:502:in `standard_exception_handling'
    c:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/lib/buildr/core/application.rb:135:in `run'
    C:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/bin/buildr:19
    C:/local/buildr-1.4.0/lib/ruby/gems/1.8/gems/buildr-1.4.2-java/bin/buildr:19:in
    `load'
    c:\local\buildr-1.4.0\bin\buildr:19

Thanks,
Tammo