With the iOS openjdk-src build, sun.misc.Launcher will throw an
InternalError if avian.file.Handler is not present, so let's make it
happy.
Also, as of recent version(s) of Xcode, there are no utilities
(e.g. ar and strip) in iPhoneSimulator.platform/usr/bin, so we can
just use the system ones.
OpenJDK.getDeclaringClass is called from JVM_GetDeclaringClass, so we
need to tell ProGuard to preserve it along with the other method we
had already included.
This package name must match the URL protocol we use for loading
embedded resources, but OpenJDK's URL class won't tolerate underscores
in a protocol name. Also, I had not updated the names of the native
methods in avian.avianvmresource.Handler, leading to
UnsatisfiedLinkErrors when they were called.
