graphql-java/graphql-java v3.0.0 on GitHub

This is our biggest release yet, with exciting new features, but also with breaking changes.

A big thanks to all contributors! A lot of them are not directly mentioned here, but every comment or Issue makes this project better.

The most fundamental change is that graphql-java requires now Java 8. Java 6 or Java 7 is no longer supported. (#359)

The biggest new feature is that we now offer a second way to define a schema (#386).

Breaking Changes

#395: TypeResolver:
The TypeResolver Interface was changed from getType(Object object) to getType(TypeResolutionEnvironment environment). The object previously directly passed is now available as TypeResolutionEnvironment.getObject().
#398: GraphQLSchema:
GraphQLSchema.getDictionary() was renamed to getAdditonalTypes()
#400: Type References:
GraphQLObject.reference(), GraphQLInterfaceType.reference() and GraphQLInputObjectType.reference() has been removed: Instead instantiate a new GraphQLTypeReference().
#401 FieldCollector:
The FieldCollector class is now clearly marked as an internal class and was changed. It is very unlikely that you used this class. If you did: please open an Issue to adress your use case.

#353 fix null error handling (by @bbakerman)
#359 Change to Java 8
#358 Support for user defined subscription type (by @vaant)
#360 type param and misc. for relay types (by @Jimexist)
#368 TypeReferences resolved for interfaces and unions (by @kaqqao)
#361 use java 8 base64 features (by @Jimexist)
#370 retain comments in the parsed document (by @bbakerman)
#371 link a runtime object back to its possible definition (by @bbakerman)
#378 too many tokens are allowed as valid (by @bbakerman)
#386 Adds the ability to compile and build executable schemas (by @bbakerman)
#387 Allow ExecutionStrategy to specify dataFetchingExceptionHandler (by @corydolphin)
#388 ast printer support (by @bbakerman)
#391 Fix handling of UnknownFragment (by @corydolphin )
#392 Add fragment definitions and execution id to DataFetchingEnvironment (by @apottere)
#395 Improved TypeResolver (by @kaqqao)
#401 have the ability to know and capture all fields in a data fetcher (by @bbakerman)
#411 make it more clear what internal vs public API is
#418 do not overwrite top level schema definition during type registry merge (by @kaseyreed)
#422 Add environment to field instrumentation. (by @apottere)
#429 Improve wrong type exception (by @dh94)