JEP 457, Class-File API (Preview), has recently been Integrated for JDK 22. This JEP proposes to provide an API for parsing, generating, and transforming Java class files. This will initially serve as an internal replacement for ASM, the Java bytecode manipulation and analysis framework, in the JDK, with plans to have it opened as a public API. Brian Goetz, the Java language architect at Oracle, characterized ASM as “an old codebase with plenty of legacy baggage” and provided background information on how this draft will evolve and ultimately replace ASM.
