Thanks for the quick response. Tried with "togglz.feature-enums" and defined groups correctly in application.properties both works perfectly fine :)
Annotation approach is great, only thing is we need flexibility to change configuration in properties file.
Can I externalize the feature flags to multiple properties files? Eg., one properties file for each feature group like
feature.properties - > Feature_1, Feature_2 - FeaturesGroup
toggles.properties -> toggle_1, toggle_2 - TogglesGroup