And more bug fixes

Region fix, hopefully

pom.xml

@@ -2,7 +2,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>ch.njol</groupId>
 	<artifactId>skript</artifactId>
-	<version>2.2-dev14b</version>
+	<version>2.2-dev14c</version>
 	<name>Skript</name>
 	<description>A plugin for the Minecraft server API Bukkit that allows to create scripts in natural language.</description>
 	<url>http://njol.ch/projects/skript/</url>

src/main/java/ch/njol/skript/hooks/regions/WorldGuardHook.java

@@ -48,6 +48,8 @@
 import com.sk89q.worldedit.BlockVector;
 import com.sk89q.worldguard.bukkit.WorldGuardPlugin;
 import com.sk89q.worldguard.domains.DefaultDomain;
+import com.sk89q.worldguard.protection.ApplicableRegionSet;
+import com.sk89q.worldguard.protection.managers.RegionManager;
 import com.sk89q.worldguard.protection.regions.ProtectedRegion;
 
 /**
@@ -240,8 +242,15 @@ public int hashCode() {
 	@SuppressWarnings("null")
 	@Override
 	public Collection<? extends Region> getRegionsAt_i(final Location l) {
-		final Iterator<ProtectedRegion> i = plugin.getRegionManager(l.getWorld()).getApplicableRegions(l).iterator();
 		final ArrayList<Region> r = new ArrayList<Region>();
+
+		RegionManager manager = plugin.getRegionManager(l.getWorld());
+		if (manager == null)
+			return r;
+		ApplicableRegionSet applicable = manager.getApplicableRegions(l);
+		if (applicable == null)
+			return r;
+		final Iterator<ProtectedRegion> i = applicable.iterator();
 		while (i.hasNext())
 			r.add(new WorldGuardRegion(l.getWorld(), i.next()));
 		return r;

src/main/java/ch/njol/skript/lang/function/FunctionReference.java

@@ -166,7 +166,6 @@ public boolean validateFunction(final boolean first) {
 		return true;
 	}
 
-	@SuppressWarnings("null")
 	@Nullable
 	protected T[] execute(final Event e) {
 		if (function == null)
@@ -182,16 +181,21 @@ protected T[] execute(final Event e) {
 			for (int i = 0; i < params.length; i++)
 				params[i] = parameters[i].getArray(e); // TODO what if an argument is not available? pass null or abort?
 		}
+		assert function != null;
 		return function.execute(params);
 	}
 
 	public boolean isSingle() {
 		return single;
 	}
 
-	@SuppressWarnings("null")
+	@SuppressWarnings("unchecked")
 	public Class<? extends T> getReturnType() {
-		return function.returnType.getC();
+		if (function == null)
+			return (Class<? extends T>) Void.class; // No function = no return
+		assert function != null;
+		ClassInfo<? extends T> ret = function.getReturnType();
+		return (Class<? extends T>) (ret == null ? Void.class : ret);
 	}
 
 	public String toString(@Nullable final Event e, final boolean debug) {