Java bytecode equivalents for ilasm / ildasm

Question

For CIL / MSIL, I can write the code in a text editor and compile / decompile with ilasm / ildasm.

I can use Reflector to see the CIL generated by a .NET class.

Answer 1

Jasmin:

http://jasmin.sourceforge.net/

It's an assembler for Java bytecode. While an above poster pointed out that hand-coding Java bytecode may not be very useful, Jasmin has been used as a backend for compilers targeting the JVM as a runtime. Thus, your compiler can output Jasmin assembler instructions and then Jasmin converts them into Java classes.