Use ArrayList instead of String[] so that if we access non-existing i…

…ndices via array[123] we'll get null instead of an ArrayIndexOutOfBoundsException

@see https://www.filebot.net/forums/viewtopic.php?f=11&p=23683#p23683

amc.groovy

@@ -33,10 +33,10 @@ def extractFolder = tryQuietly{ extractFolder.toString() }
 def skipExtract = tryQuietly{ skipExtract.toBoolean() }
 def deleteAfterExtract = tryQuietly{ deleteAfterExtract.toBoolean() }
 def excludeList = tryQuietly{ (excludeList as File).isAbsolute() ? (excludeList as File) : new File(outputFolder, excludeList as String).getCanonicalFile() }
-def myepisodes = tryQuietly{ myepisodes.split(':', 2) }
-def gmail = tryQuietly{ gmail.split(':', 2) }
-def mail = tryQuietly{ mail.split(':', 5) }
-def pushover = tryQuietly{ pushover.split(':', 2) }
+def myepisodes = tryQuietly{ myepisodes.split(':', 2) as List }
+def gmail = tryQuietly{ gmail.split(':', 2) as List }
+def mail = tryQuietly{ mail.split(':', 5) as List }
+def pushover = tryQuietly{ pushover.split(':', 2) as List }
 def pushbullet = tryQuietly{ pushbullet.toString() }
 def storeReport = tryQuietly{ storeReport.toBoolean() }
 def reportError = tryQuietly{ reportError.toBoolean() }