Google responds to Oracle's patent lawsuit 16 years ago
Clean room design would be a defense against the copyright charge. They broke clean room design by hiring engineers from sun, jvm engineers etc. Even google's ceo came from sun and he lead java at sun.
The patents are integral to the JVM.
Google should have bought Palm and Sun for the patents.
.NET can step on the JVM patents: http://www.itworld.com/040409microsoftlegal
They got lucky with yahoo: http://news.cnet.com/Google,-Yahoo-bury-the-legal-hatchet/21... They could have been pushed out of the space. They are use to getting sweet deals in stomping on others patents, copyrights, etc.