From 12a652bd1e73a85d3d7e6ba48d29deb3fa470476 Mon Sep 17 00:00:00 2001
From: Mike Hearn <hearn@google.com>
Date: Fri, 4 Jan 2013 17:38:05 +0100
Subject: [PATCH] Close the temporary FileInputStream created in
 Sha256Hash.hashFileContents. Updates issue 265.

---
 .../src/main/java/com/google/bitcoin/core/Sha256Hash.java | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/core/src/main/java/com/google/bitcoin/core/Sha256Hash.java b/core/src/main/java/com/google/bitcoin/core/Sha256Hash.java
index 6a57d368..6b8a7c60 100644
--- a/core/src/main/java/com/google/bitcoin/core/Sha256Hash.java
+++ b/core/src/main/java/com/google/bitcoin/core/Sha256Hash.java
@@ -73,8 +73,12 @@ public class Sha256Hash implements Serializable {
      * @throws IOException
      */
     public static Sha256Hash hashFileContents(File f) throws IOException {
-        // Lame implementation that just reads the entire file into RAM. Can be made more efficient later.
-        return create(ByteStreams.toByteArray(new FileInputStream(f)));
+        FileInputStream in = new FileInputStream(f);
+        try {
+            return create(ByteStreams.toByteArray(in));
+        } finally {
+            in.close();
+        }
     }
 
     /**