bytecode « class file « Java I/O Q&A

1. Create a BCEL JavaClass object from arbitrary .class file    stackoverflow.com

I'm playing around with BCEL. I'm not using it to generate bytecode, but instead I'm trying to inspect the structure of existing compiled classes. I need to be able to point ...

2. Best Library for programatically inspecting Java class files    stackoverflow.com

I'm working on a project where we're doing a lot of remote object transfer between a Java service and clients written in other various languages. Given our current constraints I've ...

3. Switching between bytecode versions for a Java class file    stackoverflow.com

Given a Java class file (ClassName.class) with bytecode version X is there a general way to convert this class file from being represented in bytecode version X to being represented in ...

4. Generating .class file for JVM    stackoverflow.com

I am working on a project that requires me to generate a java ".class" file on the go that can be later on compiled on the JVM. After learning and working ...

5. Editing a .class file directly, playing around with opcodes    stackoverflow.com

today I just tried to play a little bit around with the opcodes in compiled java class file. After inserting

iinc 1,1

Exception in thread "main" java.lang.ClassFormatError: ...

6. Is it possible to view bytecode of Class file?    stackoverflow.com

In Java,source code is compiled into bytecode which is actually Class file. Is it possible that we can view bytecode of Class file? If it possible, Can we edit it? Is there ...

7. Encrypted class files with decryption handled by a native library    stackoverflow.com

The article "Cracking Java byte-code encryption" (javaworld.com/javaworld/javaqa/2003-05/01-qa-0509-jcrypt.html) explains why class file encryption using a custom class loader is pointless, because at some point you always need to call defineClass(), ...

8. How to compile rhino/javascript files to .class bytecode for java at runtime    stackoverflow.com

I'm making a falling sand game in Java. I want users to be able to write their own engine for it using a simpler language. Falling sand games can ...

9. Why are compiled Java class files smaller than C compiled files?    stackoverflow.com

I would like to know why the .o file that we get from compiling a .c file that prints "Hello, World!" is larger than a Java .class file that also prints ...

10. What is the variance of java .class files across different compilers, versions, dependencies?    stackoverflow.com

Hi I was wondering how much Java class files change across different compilers. So how much do the actual bytes change if a .java files is compiled by say a Sun ...

11. Java Class File Editor    stackoverflow.com

What is the most effective way I can decompile & Edit a class file? I really just want to edit one line of code in the file, however JBE (java ByteCode ...

12. check content in .class files    stackoverflow.com

Suppose one learned that certain developer hardcoded a bunch of usernames and passwords into application, which made it into Production. Oh-oh ..! You know both username and password - is there a ...

13. How to generate bytecode and save to .class file?    stackoverflow.com

I have the following weird requirement. I am given:

1. A list of some method names.
2. Names and types of parameters of the above methods.
3. The functionality of the above methods. This is as follows: For ...

14. How to check the version number of a compiled bytecode class file?    coderanch.com