As the drama of the Oracle vs Google lawsuit continues, which Google has already called “legally deficient” in October, the most recent round has Google claiming that Oracle isn’t playing fair. The patent lawsuit came out over patent violations in Google’s Android platform—but the code presented doesn’t seem to be up to spec.

According to an article responding to the amended complaint at Groklaw,

Google further denies that the document attached to Oracle’s Amended Complaint as Exhibit J contains a true and correct copy of a class file from either Android or “Oracle America’s Java.” Google states further that Oracle has redacted or deleted from the materials shown in Exhibit J both expressive material and copyright headers that appear in the actual materials, which are significant elements and features of the files in question.

The amendment should help bolster Google’s case that Oracle’s original complaint happens to be invalid—if it is the case that Oracle has not submitted an accurate document. This is especially important because Exhibit J happens to be the side-by-side comparison between Oracle and Google Android code.

If it happens to be the case that Google’s assertion about Oracle’s presentation happens to be correct; then Oracle doesn’t in fact have a leg to stand on. Google is alleging that Oracle has manufactured the similarities between the two sets of code through careful modification and code-mining.