Hi @kazurayam, @anon46315158,
In Groovy 2.5+, Apache does not provide groovy-all jar like Groovy 2.4. You can compare the differences in:
https://mvnrepository.com/artifact/org.codehaus.groovy/groovy-all/2.4.7
https://mvnrepository.com/artifact/org.codehaus.groovy/groovy-all/3.0.2.
In KS 8.0.alpha2, we added groovy-text, groovy-xml, groovy-json. We will add groovy-sql or other groovy libs as built-in libraries if you think they are necessary for the next alpha or the beta release.
The work-around solution in v8.0.0.alpha2 is adding groovy-sql-3.0.2 to the Drivers folder.