http://android.git.kernel.org/?p=platform/libcore.git;a=tree...
http://android.git.kernel.org/?p=platform/libcore.git;a=tree...
http://android.git.kernel.org/?p=platform/libcore.git;a=tree...
For this one as well as quote #3, what's missing is an analysis of the code actually shipped with Android-based devices. There are many such devices. Some may be more security-oriented (hence more likely to make use of the "acl" and PolicyNodeImpl type of classes) than others.
So we're talking about a totally unsubstantiated claim here. There may be build scripts, and some files may not be in them by default. That doesn't mean that no maker of an Android-based device actually decided to build them into a product, especially if Apache license headers appeared to allow it.
If this scenario did in fact occur, then isn't it the device manufacturer's fault and problem, and not Google's responsibility?
Which party builds/packages the Android distributions for the actual phone devices that the OS will appear on?
Especially considering they did register their copyright on Java 5. I know because I have read the court exhibits.