Better handle invalid json

src/com/massivecraft/massivecore/money/MoneyMixinVault.java

@@ -255,8 +255,8 @@ public class 	MoneyMixinVault extends MoneyMixinAbstract
 	public static Object getEconomyObject(String accountId)
 	{
 		if (null == accountId) return null;
-		// Because of Factions we have this crazy-workaround.
+		// Because of Factions we have this crazy-workaround
-		// Where offlineplayers will be used when possible
+		// where offlineplayers will be used when possible
 		// but otherwise names will.
 		OfflinePlayer ret = IdUtil.getOfflinePlayer(accountId);
 		if (ret != null) return ret;

src/com/massivecraft/massivecore/store/Coll.java

@@ -14,7 +14,6 @@ import com.massivecraft.massivecore.mixin.MixinModification;
 import com.massivecraft.massivecore.store.migrator.MigratorUtil;
 import com.massivecraft.massivecore.util.MUtil;
 import com.massivecraft.massivecore.util.Txt;
-import com.mongodb.DB;
 import org.apache.commons.lang.StringUtils;
 import org.bukkit.Bukkit;
 import org.bukkit.plugin.Plugin;
@@ -384,6 +383,11 @@ public class Coll<E extends Entity<E>> extends CollAbstract<E>
 			this.logLoadError(id, "Raw data was JSON null. It seems you have a file containing just the word \"null\". Why would you do this?");
 			return false;
 		}
+		if (raw == MStore.INVALID_JSON)
+		{
+			this.logLoadError(id, "Does not contain valid json.");
+			return false;
+		}
 		
 		return true;
 	}

src/com/massivecraft/massivecore/store/DriverFlatfile.java

@@ -3,6 +3,7 @@ package com.massivecraft.massivecore.store;
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
 import com.google.gson.JsonParser;
+import com.google.gson.JsonSyntaxException;
 import com.massivecraft.massivecore.collections.MassiveMap;
 import com.massivecraft.massivecore.collections.MassiveSet;
 import com.massivecraft.massivecore.util.DiscUtil;
@@ -172,8 +173,15 @@ public class DriverFlatfile extends DriverAbstract
 		content = content.trim();
 		if (content.length() == 0) return null;
 
+		try
+		{
 			return new JsonParser().parse(content);
 		}
+		catch (JsonSyntaxException ex)
+		{
+			return MStore.INVALID_JSON;
+		}
+	}
 	
 	@Override
 	public Map<String, Entry<JsonObject, Long>> loadAll(Coll<?> coll)

src/com/massivecraft/massivecore/store/MStore.java

@@ -1,6 +1,7 @@
 package com.massivecraft.massivecore.store;
 
 import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
 import com.massivecraft.massivecore.ConfServer;
 import com.massivecraft.massivecore.entity.MassiveCoreMConf;
 
@@ -18,6 +19,7 @@ public class MStore
 	// This class also serves the purpose of containing database related constants.
 	
 	public static final boolean DEBUG_ENABLED = false;
+	public static final JsonObject INVALID_JSON = new JsonObject();
 	
 	// -------------------------------------------- //
 	// DRIVER REGISTRY