After six years of fighting over smartphone technology, Oracle Corp. and Google Inc. have never been further apart—nearly $9 billion to put a number on it.

The two giants of Silicon Valley are also at polar extremes when it comes to interpreting the central legal principle in their case and the affect of the U.S. Court of Appeals for the Federal Circuit’s 2014 ruling on it. Beginning Monday, those fights will be aired as Oracle takes its copyright infringement claims against Google to trial for a second time before U.S. District Judge William Alsup of the Northern District of California.

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