# Returns the `Int` value corresponding the given key or `def_value` if none
	# or if the value isn't of correct type
	# Calls `getLong(key, value)` java method
	# Nit `Int` is equivalent to Java `long` so that no integer overflow will occur
	fun long(key: String, def_value: Int): Int
	do
		sys.jni_env.push_local_frame(2)
		var return_value = shared_preferences.get_long(key.to_java_string, def_value)
		sys.jni_env.pop_local_frame
		return return_value
	end