why so many different ways to include Java classes into JRuby? What are the differences? Which one should I use?
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You can find quite a few examples about working with Java classes at:
https://github.com/jruby/jruby/wiki/CallingJavaFromJRuby
It states, that you should use java_import instead of import due to the JRUBY-3171 bug.
Also include_class is or will be deprecated (JRUBY-3797) in favor of java_import.
Currently java_import is the recommended way to import a Java class.
rubiii
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3FYI: the up-to-date URL to follow is: https://github.com/jruby/jruby/wiki/CallingJavaFromJRuby – inger Dec 15 '11 at 13:54
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What about `java_require` ? – detj Mar 24 '17 at 14:25
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import doesn't play well with Rake, so it's discouraged. java_import is the newest, and recommended. include_class has been deprecated. Apart from that they all do the same thing, and are actually aliases of each other.
import is an alias for java_import and java_import calls include_class.
Theo
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1If I read this answer yesterday, I'd wouldn't have wasted a day today! – Paul Biggar Nov 14 '11 at 03:42