Since the introduction of synthesized annotation support in Spring Framework 4.2 (a.k.a., merged annotations), the toString() implementation attempted to align with the formatting used by the JDK itself. However, Class annotation attributes were formatted using Class#getName in Spring; whereas, the JDK used Class#toString up until JDK 9. In addition, JDK 9 introduced new formatting for toString() for annotations, apparently intended to align with the syntax used in the source code declaration of the annotation. However, JDK 9+ formats enum annotation attributes using Enum#toString instead of Enum#name, which can lead to issues if toString() is overridden in an enum. This commit updates the formatting used for synthesized annotations by ensuring that toString() generates a string that is compatible with the syntax of the originating source code, going beyond the changes made in JDK 9 by using Enum#name instead of Enum#toString. Closes gh-28015 |
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README.md
Spring Framework

This is the home of the Spring Framework: the foundation for all Spring projects. Collectively the Spring Framework and the family of Spring projects are often referred to simply as "Spring".
Spring provides everything required beyond the Java programming language for creating enterprise applications for a wide range of scenarios and architectures. Please read the Overview section as reference for a more complete introduction.
Code of Conduct
This project is governed by the Spring Code of Conduct. By participating, you are expected to uphold this code of conduct. Please report unacceptable behavior to spring-code-of-conduct@pivotal.io.
Access to Binaries
For access to artifacts or a distribution zip, see the Spring Framework Artifacts wiki page.
Documentation
The Spring Framework maintains reference documentation (published and source), Github wiki pages, and an API reference. There are also guides and tutorials across Spring projects.
Micro-Benchmarks
See the Micro-Benchmarks Wiki page.
Build from Source
See the Build from Source Wiki page and the CONTRIBUTING.md file.
Continuous Integration Builds
Information regarding CI builds can be found in the Spring Framework Concourse pipeline documentation.
Stay in Touch
Follow @SpringCentral, @SpringFramework, and its team members on Twitter. In-depth articles can be found at The Spring Blog, and releases are announced via our news feed.
License
The Spring Framework is released under version 2.0 of the Apache License.