PDFBOX-5660: close input, as suggested by Valery Bokov

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1929842 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

pdfbox/src/main/java/org/apache/pdfbox/Loader.java

@@ -119,7 +119,7 @@ public static FDFDocument loadFDF(InputStream input) throws IOException
      */
     public static FDFDocument loadXFDF(String filename) throws IOException
     {
-        return Loader.loadXFDF(new BufferedInputStream(new FileInputStream(filename)));
+        return Loader.loadXFDF(new File(filename));
     }
 
     /**
@@ -133,7 +133,10 @@ public static FDFDocument loadXFDF(String filename) throws IOException
      */
     public static FDFDocument loadXFDF(File file) throws IOException
     {
-        return Loader.loadXFDF(new BufferedInputStream(new FileInputStream(file)));
+        try (InputStream is = new BufferedInputStream(new FileInputStream(file)))
+        {
+            return Loader.loadXFDF(is);
+        }
     }
 
     /**