private static CleanerHandles FindHandlesForOldCleaner(MethodHandles.Lookup lookup)
{
try
{
Type oldCleaner = Type.GetType("sun.misc.Cleaner");
return(CleanerHandles.Of(FindCreationMethod("create", lookup, oldCleaner), FindCleanMethod(lookup, oldCleaner)));
}
catch (Exception oldCleanerException) when(oldCleanerException is ClassNotFoundException || oldCleanerException is NoSuchMethodException || oldCleanerException is IllegalAccessException)
{
throw new LinkageError("Unable to find cleaner methods.", oldCleanerException);
}
}
private static CleanerHandles FindHandlesForNewCleaner(MethodHandles.Lookup lookup)
{
try
{
Objects.requireNonNull(_globalCleanerInstance);
Type newCleaner = _globalCleanerInstance.GetType();
Type newCleanable = Type.GetType("java.lang.ref.Cleaner$Cleanable");
MethodHandle registerHandle = FindCreationMethod("register", lookup, newCleaner);
registerHandle = registerHandle.bindTo(_globalCleanerInstance);
return(CleanerHandles.Of(registerHandle, FindCleanMethod(lookup, newCleanable)));
}
catch (Exception newCleanerException) when(newCleanerException is ClassNotFoundException || newCleanerException is NoSuchMethodException || newCleanerException is IllegalAccessException)
{
throw new LinkageError("Unable to find cleaner methods.", newCleanerException);
}
}