[{ALLOW view All}]
[{ALLOW edit Authenticated}]

!Groovy

Official Site [https://groovy-lang.org]\\
Download [https://groovy.apache.org/download.html] > latest stable (3.0.7) > binary

!Set GROOVY_HOME
Explorer > PC > right click > properties > Advanced system settings > Environment Variables\\
> New > "GROOVY_HOME" = C:\lang\groovy\groovy-3.0.7\\
> Mark Path > Edit > New > "%GROOVY_HOME%\bin"\\
Note: add GROOVY_HOME and edit path both at user or system level !\\

Check with {{{ cmd > groovy -v }}}

!Eclipse

[https://groovy-lang.org/ides.html] > [https://github.com/groovy/groovy-eclipse]\\
> [https://github.com/groovy/groovy-eclipse/wiki]\\
> Install URL for Eclipse 4.19 (2021-03) = https://dist.springsource.org/release/GRECLIPSE/e4.19\\
> choose\\
* Main Package > Eclipse Groovy Development Tools 4.1.0.v202103311613...
* Note: "Maven Support" will cause Eclipse start failure
> Restart > New Project ...

!Language features
Console:\\
* stop printing all variables with a final "return"

Turn off warnings:\\
* --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED