Library for listing version of Java class files. Collects the Java versions stored in class files and outputs it in various formats: text, CSV or summary (counts per version).

Magic number: The first four bytes of a bytecode file always contain a magic number that identifies the file as a Java bytecode file. The magic number is 0xCAFEBABE. Version information: The next four ...

We’ve explored Java 22 and 23, and are finishing up with Java 24. Version 24 version introduces several new language features which collectively simplify code, and provide powerful tools for bytecode ...

With this versioning tool in your box, you can design some objects that utilize the macro expansion to return version information for compiled class files.

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 ...

Java 24 adds several new features to the language, such as the availability of the Stream Gatherers API and Class-File API, ...

me.printTodaysDate(); } } With a simple class defined in Java source code, I can now use javac with various -g options to compile .class files with correspondingly different debug support.