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A federal jury in San Francisco ruled against Google Monday in Oracle's copyright-infringement case against the search giant, but could not agree whether it was entirely liable.

Oracle Corp. claims Google Inc. built its Android mobile software by stealing technology from Java, a programming platform purchased from Sun by Oracle in 2010. It is seeking $1 billion in damages, according to court documents.

The jury determined Google had infringed on the largest of Oracle's claim, but could not reach an agree whether Google's use was legally protected "fair use."

It was also found that Google infringed on nine lines of Java code, copyrighted by Oracle. However, Oracle can only pursue statutory damages that range from $200 to $150,000 on that infringement.

Google won other claims in the case, but the company's attorneys will argue for a mistrial on Tuesday and Thursday, according to CNET.

Google argued there was no infringement because it did not copy unauthorized Java code. It made "fair use" of the Java language APIs in Android, citing Sun publicly approved of the use of the code.

The trial began earlier this month, and the next phase will involved Oracle's allegations that Android violates two Java patents. A third phase will focus on the damages owed in both of the earlier phases.

The trial is projected to last two months, according to CNET.

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