JEP 457, Class-File API (Preview), has been Integrated into JDK 22, proposing a new API for parsing, generating, and transforming Java class files. This API will initially replace ASM within the ...

In Java, nested classes are categorized as either static member classes or inner classes. Inner classes are non-static member classes, local classes, or anonymous classes.

Java 23, now generally available, includes previews of module import declarations, stream gatherers, structured concurrency, scoped values, and a class-file API. And much more.