I don't see Groovy competing for attention. People who want to have a Rails like development experience on the JVM is a completely different market than the usu

I don't see Groovy competing for attention. People who want to have a Rails like development experience on the JVM is a completely different market than the usual Spring Boot stuff or legacy code that still uses xml hibernate definitions. Yes, I still have to deal with that. Also the Java codebase is significantly slower because raw Hibernate is terrible and should never be combined with JSF. Meanwhile with grails your only performance worry is that each field plugin template is its own class, which puts immense pressure on the class loader which has to do the non envious job of loading a thousand classes. Despite significant amounts of indirection and excessive use of hidden reflection to abstract over entity/domain classes, the parts I expected to be slow are never the ones you would expect. CompileStatic, etc is almost never worth it. Groovy competes more with Ruby than with Java.