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I am new to groovy and I cannot understand, if it is possible to compile a groovy program, so it runs at all computers, were the JRE is installed.
The application I am developing has to run on any computer with JRE 1.5. Is it possible to start using groovy and maintain this flexibility? With JRE 1.6?
I have heard about the library groovy-all-VERSION.jar. Is this the one required library to be shipped with my application?
The answer is yes. In fact, all groovy code compiles down to Java classes that run on the JRE. All you need is JRE 1.4 or higher and the groovy-all-*.jar on the classpath of your application.
Since you are looking to support JRE 1.5 or higher, make sure your source compatibility is set on your compiler to this level.
There are a few options for compiling your groovy code. Groovyc (Ant Task), GMaven (Maven) and Gradle are all options.
Another option you have is to ‘not’ compile your groovy code. The groovy distribution only requires the JRE to be installed. You can ship your application as a set of scripts that can simply be run using the groovy install. It depends on how sensitive your source code is.