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The IfCmp bytecode takes an int as the first argument (the type of comparison) while the If bytecode takes an IfMode (enum) as the first argument (the type of comparison).

It would be nice if both of these bytecodes used the same type for the first argument, as they share most of the different comparisons, and it would benefit code re-use.

Currently, JasmFileReader is not functional and it would be nice to finish this off so that jasm is a true assembler / disassembler.

Currently, there are no readers for bytecode attributes, other than those built in to ClassFileReader. It would be good to add one for each bytecode attribute.

Currently, attribute printing is handled by the BytecodeAttribute.print method. However, this is hard coding a particular view, and we may want to support multiple views (eg jasmin, jasm, javap, etc).

Creating a Bytecode.Goto with a label for which there is no co-responding Bytecode.Label results in the program not terminating when the class file is being written.

Currently, when jasm identifies a verification error it reports a rather useless error message. This really needs to be improved!!!

Currently, the StackMapTable is not written correctly to disk. Well, it's not written at all to disk.