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).

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 ...

No more java.lang.UnsupportedClassVersionError! A simple jar file and class file version checker. - x-nagasawa/ClassfileVersionChecker ...

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

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 ...

Sometimes even the most carefully controlled environments can get corrupted. With jar files being pushed prematurely and source files being updated constantly, determining which version of the ...

The Java Class File Disassembler ( javap ) is a useful tool for the Java developer that I have referenced in previous blog posts covering a variety of contexts such as detecting the innards of a ...