Java 11 should build Java 8 compatible binaries
Java 11 should build Java 8 compatible binaries

to prevent erros like 'class file has wrong version 55.0, should be 52.0'

flamingo-geocms/flamingo,flamingo-geocms/flamingo,B3Partners/flamingo,flamingo-geocms/flamingo,B3Partners/flamingo,B3Partners/flamingo,flamingo-geocms/flamingo,B3Partners/flamingo