NPE occurs at startup if conf directory doesn't exists

[To-om]

Classpath is scanned at startup in order to collect model classes. The default location of configuration file is included in classpath (conf).
In the current distribution, confdirectory doesn't exist as we put it in /etc/thehive/. This is the cause of the NullPointerException:

2016-11-23 06:31:54,289 [WARN] from org.reflections.Reflections in main - could not create Dir using directory from url file:/opt/thehive/conf. skipping.
java.lang.NullPointerException: null
	at org.reflections.vfs.Vfs$DefaultUrlTypes$3.matches(Vfs.java:239)
	at org.reflections.vfs.Vfs.fromURL(Vfs.java:98)
	at org.reflections.vfs.Vfs.fromURL(Vfs.java:91)
	at org.reflections.Reflections.scan(Reflections.java:237)
	at org.reflections.Reflections.scan(Reflections.java:204)
	at org.reflections.Reflections.<init>(Reflections.java:129)
	at global.TheHive.configure(Module.scala:61)