The e-mail in question suggests that Google knew it needed a Java license for its Android platform. Oracle is suing Google, claiming that Android violates Java patents property.

The judge overseeing the case . But , and in early August the judge asked both Oracle and Google to file all factual information they have regarding the e-mail by today.

The documents filed by Google offer a glimpse into the amount of data produced by this kind of lawsuit.

Google paralegals have turned over 97 million documents related to this case to a third-party vendor that processes the documents, said Kristin Zmrhal, a project manager of discovery support at Google, in a declaration filed Monday.

The vendor filters the documents using search terms agreed upon by Google and Oracle and then tags those documents. Attorneys working for another vendor then review those documents, she said. They look for words like "privileged" and "confidential" as well as names of attorneys that might be in the "to" line of an e-mail. Such documents would be considered confidential and would not become part of the case.