I am trying to find tools that mutate Java source code. I am looking for these tools to evaluate the effectiveness of automatic debugging algorithms. To date, I have manually entered errors in programs to test these algorithms. I think that mutation will be a good way to automate this task.
So far, I have managed to find Mutation Testing tools such as Pitest and Jester. These tools, despite the presence of the mutators I'm looking for, do not save the mutated source files, and this is what I need. Therefore, please do not recommend me the Mutation Testing tools, which only mutate programs in memory.
Do such tools exist?
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