Fix some possibility of NPE.

src/main/java/ru/simsonic/rscPermissions/Bukkit/BukkitPermissionManager.java

@@ -161,8 +161,7 @@ public class BukkitPermissionManager extends RestartableThread
 		{
 			Set<String> regionSet = rscp.regionListProvider.getPlayerRegions(player);
 			params.destRegions = regionSet.toArray(new String[regionSet.size()]);
-		} else
+		}
-			params.destRegions = new String[] {};
 		params.destWorld  = player.getLocation().getWorld().getName();
 		params.expirience = player.getLevel();
 		final ResolutionResult result = rscp.internalCache.resolvePlayer(params);

src/main/java/ru/simsonic/rscPermissions/Engine/InternalCache.java

@@ -48,7 +48,6 @@ public class InternalCache extends InternalStorage
 	{
 		final ResolutionParams params = new ResolutionParams();
 		params.applicableIdentifiers = player;
-		params.destRegions = new String[] {};
 		return resolvePlayer(params);
 	}
 	public synchronized ResolutionResult resolvePlayer(ResolutionParams params)
@@ -56,11 +55,11 @@ public class InternalCache extends InternalStorage
 		params.groupList    = new LinkedList<>();
 		params.finalPerms   = new TreeMap<>();
 		params.instantiator = "";
-		params.depth        = 0;
+		params.branchDepth  = 0;
+		if(params.destRegions == null)
+			params.destRegions = new String[] {};
 		if(implicit_u != null && implicit_u.permissions != null)
-		{
 			processPermissions(params, Arrays.asList(implicit_u.permissions));
-		}
 		final ArrayList<RowEntity>      applicableEntities    = new ArrayList<>();
 		final ArrayList<RowPermission>  applicablePermissions = new ArrayList<>();
 		final ArrayList<RowInheritance> applicableInheritance = new ArrayList<>();
@@ -114,9 +113,9 @@ public class InternalCache extends InternalStorage
 		if(implicit_g != null && implicit_g.permissions != null)
 			processPermissions(params, Arrays.asList(implicit_g.permissions));
 		final RowEntity currentParent = params.parentEntity;
-		final String instantiator = params.instantiator;
+		final String    instantiator  = params.instantiator;
 		final ArrayList<ResolutionResult> intermediateResults = new ArrayList<>();
-		params.depth += 1;
+		params.branchDepth += 1;
 		for(RowInheritance row : params.parentEntity.inheritance)
 			if(isInheritanceApplicable(params, row))
 			{
@@ -126,8 +125,8 @@ public class InternalCache extends InternalStorage
 					: row.instance;
 				intermediateResults.add(resolveParent(params));
 			}
-		params.depth -= 1;
+		params.branchDepth -= 1;
-		params.groupList.add(depthPrefix(params.depth) + currentParent.entity
+		params.groupList.add(depthPrefix(params.branchDepth) + currentParent.entity
 			+ ("".equals(instantiator) ? "" : Settings.INSTANCE_SEP + instantiator));
 		// Prefixes and suffixes
 		params.parentEntity = currentParent;

src/main/java/ru/simsonic/rscPermissions/Engine/ResolutionParams.java

@@ -10,9 +10,9 @@ public class ResolutionParams
 	public String[] destRegions;
 	public String   destWorld;
 	public int      expirience;
-	protected transient int depth;
+	protected transient int                  branchDepth;
-	protected transient RowEntity parentEntity;
+	protected transient RowEntity            parentEntity;
-	protected transient String    instantiator;
+	protected transient String               instantiator;
 	protected transient Map<String, Boolean> finalPerms;
-	protected transient List<String> groupList;
+	protected transient List<String>         groupList;
 }