Google has appealed to the U.S. Supreme Court to overturn the Federal Court’s ruling which saw the tech giant being liable for roughly $9 billion. The case stems from Google’s alleged patent and copyright infringment of 9 lines of code and 37 API names from Java for its Android operating system. The copyright lawsuit has been dragging on since 2010.

Java’s initial developers Sun Microsystems held the copyright. Google developed their Android operating system around Sun Microsystems but reverse-engineered their own APIs from scratch. However, the API names were the same, along with nine lines of code. Sun Microsystems claimed Google hadn’t done anything wrong, as the Java programming language was free. However, when Oracle bought Sun Microsystems in 2009 and acquired the Java patent, they saw a copyright violation and a lawsuit was filed in 2010.

Last year, the Federal Circuit Appeals Court ruled in favor of Oracle for the $9 billion in damages. Google has just appealed the last Federal Court ruling to the US Supreme Court. The Court has refused to hear arguments thus far for this case, in both 2012 and in 2015.