Add dependency on geotools-jars

Author: geographist

geoscript.gemspec

@@ -17,6 +17,8 @@ Gem::Specification.new do |gem|
   gem.files = Dir['README.md', 'lib/**/*', 'spec/support/**/*']
   gem.require_paths = ['lib']
 
+  gem.add_dependency 'geotools-jars', '>= 8.0'
+
   gem.add_development_dependency 'rake'
   gem.add_development_dependency 'rspec'
   gem.add_development_dependency 'guard-rspec'

lib/geoscript.rb

@@ -2,8 +2,7 @@
 $: << File.expand_path(File.join(File.dirname(__FILE__), 'geoscript'))
 
 if defined? JRUBY_VERSION
-  require 'java'
-  require 'geoscript/jars'
+  require 'geotools-jars'
 
   require 'geoscript/version'
   require 'geoscript/util'
@@ -24,7 +23,7 @@ def version
     end
 
     def geotools_version
-      GEOTOOLS_VERSION
+      ::Java::OrgGeotoolsFactory::GeoTools.version.to_string
     end
     alias_method :gt_version, :geotools_version
   end