diff --git a/src/zutil/io/file/FileUtil.java b/src/zutil/io/file/FileUtil.java
index c732c30..b997c0f 100755
--- a/src/zutil/io/file/FileUtil.java
+++ b/src/zutil/io/file/FileUtil.java
@@ -147,6 +147,17 @@ public class FileUtil {
         return data;
 	}
 
+	/**
+	 * Replaces the contents of a file with the specified data.
+	 *
+	 * @param	file	the file to write the data to
+	 * @param	data	the data to write to the file
+     */
+	public static void setContent(File file, byte[] data) throws IOException{
+		OutputStream out = new FileOutputStream(file);
+        out.write(data);
+        out.close();
+	}
 	
 	/**
 	 * Cache for the search functions
diff --git a/src/zutil/parser/json/JSONObjectInputStream.java b/src/zutil/parser/json/JSONObjectInputStream.java
index b40af53..6114457 100755
--- a/src/zutil/parser/json/JSONObjectInputStream.java
+++ b/src/zutil/parser/json/JSONObjectInputStream.java
@@ -162,9 +162,11 @@ public class JSONObjectInputStream extends InputStream implements ObjectInput, C
             Map map = (Map)type.newInstance();
             for(Iterator<String> it=json.keyIterator(); it.hasNext();){
                 String subKey = it.next();
-                map.put(
-                        subKey,
-                        readType((genType.length>=2? genType[1] : null), null, subKey, json.get(subKey)));
+                if(json.get(subKey) != null) {
+                    map.put(
+                            subKey,
+                            readType((genType.length >= 2 ? genType[1] : null), null, subKey, json.get(subKey)));
+                }
             }
             return map;
         }