Implementing a compiler using java

What I require is 2 versions of this, similar but slightly different coding but does the exact same thing. We have the whole project already made but it is done upto 100%. What we need is the following... We need the Lexer and parser to be working 100% The semantic checker to be working 80% And the code generation to be working 50% We already have the code, created in NetBeans which is completed at 100% however we need it made in Eclipse in a skeleton code that was provided to us which I will also attach The whole code will be provided on awarding of the project. All this needs to be completed ASAP. 24 hours at the most.