Output console without props leads to a NPE

[garcimouche]

Description: not specifying props for output console generates a NullPointerException

Environnement: Ubuntu Linux 16.04 Java 8 (Hotspot 1.8.0_101)

Reproduce :

“output” :  {
  “type” : “console”
}

The following works correctly, even though props is empty:

“output” :  {
  “type” : “console”,
  “props” : {}
}