Issue with Triggers using Java 9 methods

[Masstrix]

Method uses Java 9 methods, should be replaced with a static initialiser to support Java 8.

java.lang.NoSuchMethodError: java.util.Map.of(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
        at me.masstrix.eternalnature.trigger.TriggerAction.<clinit>(TriggerAction.java:41) ~[?:?]
        at me.masstrix.eternalnature.trigger.Trigger.<init>(Trigger.java:75) ~[?:?]
        at me.masstrix.eternalnature.trigger.TriggerManager.load(TriggerManager.java:56) ~[?:?]

java.lang.NullPointerException: null
        at me.masstrix.eternalnature.EternalHeartbeat.end(EternalHeartbeat.java:58) ~[?:?]
        at java.util.ArrayList.forEach(Unknown Source) ~[?:1.8.0_281]
        at me.masstrix.eternalnature.EternalEngine.shutdown(EternalEngine.java:213) ~[?:?]
        at me.masstrix.eternalnature.EternalNature.onDisable(EternalNature.java:228) ~[?:?]