Display or change the version of java class files. java -jar class-file-version-1.0.jar -p target/classes/org/example/Main.class target/classes/org/example/Utils ...

When attempting to run using PAPER, the jar was built with 65.0 - newer than the 61.0 that's in this image. [init] Running as uid=1000 gid=3000 with /data as 'drwxrwxrwx 13 1000 3000 4096 Jun 15 21:46 ...

Developers who are new to Java can sometimes have trouble with class and package naming. In fact, the introductory Java forums are filled with threads starting with questions about these areas of Java ...

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 Groovy ...