Merge PR #2832 by @flo - null hardening.

Cervator · Cervator · commit be828210150c · 2017-03-20T00:16:42.000-04:00
diff --git a/engine/src/main/java/org/terasology/persistence/typeHandling/extensionTypes/PrefabTypeHandler.java b/engine/src/main/java/org/terasology/persistence/typeHandling/extensionTypes/PrefabTypeHandler.java
@@ -37,6 +37,9 @@ public String getAsString(Prefab item) {
 
     @Override
     public Prefab getFromString(String representation) {
+        if (representation == null) {
+            return null;
+        }
         return Assets.getPrefab(representation).orElse(null);
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -37,6 +37,9 @@ public String getAsString(Prefab item) {`
`37`	`37`
`38`	`38`	`@Override`
`39`	`39`	`public Prefab getFromString(String representation) {`
	`40`	`+ if (representation == null) {`
	`41`	`+ return null;`
	`42`	`+ }`
`40`	`43`	`return Assets.getPrefab(representation).orElse(null);`
`41`	`44`	`}`
`42`	`45`	`}`