Recaf VS Javassist

IF you've got the legal situation all sorted out, and know that you need to change a Java class file, and know how to program in Java, I'd suggest Recaf. With it, you can import a jar file, decompile, edit and recompile any source files in it, and export the whole thing again.

No one seems to mention Recaf wich is the best option IMO. You can choose between different decompilers (Fernflower, CFR, Jadx, Procyon and others) has bytecode editing capabilities (you don't have to fully decompile, you can edit the bytecode directly), built in peephole optimizations for flow and number obfuscations, various search options for methods, members, strings, and method virtualization via SSVM

Uhhh, no? For something like JavaFX, which I've complained about its bad native handling before, you can still make a multi-platform jar with a little bit of effort. For instance my project Recaf is distributed as a single JAR file. Just install JDK 11+ and you're good to go.

I did something like this, but its not its own control/library: https://github.com/Col-E/Recaf/blob/dev3/recaf-ui/src/main/java/me/coley/recaf/ui/pane/DiffViewPane.java

The decompiler they used to view that code is not very good, that output is garbled.

If you're going to take apart JVM bytecode, you're better off using Recafe or Quiltflower.

https://github.com/Col-E/Recaf

https://github.com/QuiltMC/quiltflower

I've recently been searching for tools that can help me find rats within jar files. So far I've found jd-gui and Recaf, do you all have any suggestions for other tools?

Example: DecompilePane.java

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ClassPool comes from Javaassist library. It gives convenient API to retrieve the line number of Java method.

This problem can be resolved by https://github.com/jboss-javassist/javassist/blob/master/src/main/javassist/util/proxy/DefineClassHelper.java perfectly, I will use some of its code to fix this problem on 0.0.1

Other higher-level abstractions like Javassist: are all based on ASM, but have a nicer and easier-to-understand APIs to deal with.

In the following snippet, the transformer uses Javassist: