From fcaafe009c8b02baaa31a193614ea7dd6b5849b9 Mon Sep 17 00:00:00 2001
From: Wizjany <wizjany@gmail.com>
Date: Sat, 15 Dec 2012 13:49:44 -0500
Subject: [PATCH] Fixes NPE when attempting to list schematics in an invalid
 directory.

---
 .../worldedit/commands/SchematicCommands.java      | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/main/java/com/sk89q/worldedit/commands/SchematicCommands.java b/src/main/java/com/sk89q/worldedit/commands/SchematicCommands.java
index c89f6818d..ef8544c24 100644
--- a/src/main/java/com/sk89q/worldedit/commands/SchematicCommands.java
+++ b/src/main/java/com/sk89q/worldedit/commands/SchematicCommands.java
@@ -18,12 +18,16 @@
 
 package com.sk89q.worldedit.commands;
 
+import java.io.File;
+import java.io.IOException;
+
 import com.sk89q.minecraft.util.commands.Command;
 import com.sk89q.minecraft.util.commands.CommandContext;
 import com.sk89q.minecraft.util.commands.CommandException;
 import com.sk89q.minecraft.util.commands.CommandPermissions;
 import com.sk89q.minecraft.util.commands.Console;
 import com.sk89q.worldedit.EditSession;
+import com.sk89q.worldedit.FilenameResolutionException;
 import com.sk89q.worldedit.LocalConfiguration;
 import com.sk89q.worldedit.LocalPlayer;
 import com.sk89q.worldedit.LocalSession;
@@ -32,9 +36,6 @@ import com.sk89q.worldedit.WorldEditException;
 import com.sk89q.worldedit.data.DataException;
 import com.sk89q.worldedit.schematic.SchematicFormat;
 
-import java.io.File;
-import java.io.IOException;
-
 /**
  * Commands related to schematics
  *
@@ -213,9 +214,14 @@ public class SchematicCommands {
     public void list(CommandContext args, LocalSession session, LocalPlayer player,
                         EditSession editSession) throws WorldEditException {
         File dir = we.getWorkingDirectoryFile(we.getConfiguration().saveDir);
+        File[] files = dir.listFiles();
+        if (files == null) {
+            throw new FilenameResolutionException(dir.getPath(), "Schematics directory invalid or not found.");
+        }
         StringBuilder build = new StringBuilder("Available schematics (Filename (Format)): ");
         boolean first = true;
-        for (File file : dir.listFiles()) {
+
+        for (File file : files) {
             if (!file.isFile()) {
                 continue;
             }