Oracle's claims that Google copied Sun's Java code without permission in Android may have gained fuel on Friday. A separate search by Florian Mueller of the code (ZIP) has found more files than Oracle itself cited that appear to lift code directly. Among them, six files attached to Android 2.2 and 3.0 appear to have been extracted from Sun's Java source code using a decompiler and simply grafted into the just-in-time Dalvik engine Android uses at its root.