18.3.3. Logging from a Ruby Mojo  TOC  18.3.5. Referencing Plexus Components from JRuby

18.3.4. Raising a MojoError

If there is an unrecoverable error in a Ruby Mojo, you will need to raise a MojoError. Example 18.7, “Raising a MojoError from a Ruby Mojo” shows you how to raise a MojoError. This example mojo prints out a message and then raises a MojoError.

Example 18.7. Raising a MojoError from a Ruby Mojo

# Prints a Message
# @goal error
# @phase validate
class Error < Mojo

  # @parameter type="java.lang.String" default-value="Hello Maven World" expression="${message}"
  # @required true
  # @readonly false
  # @deprecated false
  def message
  end

  def execute
    info $message
    raise MojoError.new( "This Mojo Raised a MojoError" )
  end

end

run_mojo Error

Running this Mojo, produces the following output:

$ mvn firstruby:error
...
INFO] [firstruby:error]
[INFO] Hello Maven World
[ERROR] This Mojo Raised a MojoError
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18.3.3. Logging from a Ruby Mojo  Sponsored by Sonatype  18.3.5. Referencing Plexus Components from JRuby