From bd5c4e73e7cc05c0b072bb5bf51a442a06c30c11 Mon Sep 17 00:00:00 2001
From: Matt Corallo <git@bluematt.me>
Date: Wed, 22 Jan 2014 22:57:08 -0500
Subject: [PATCH] Prevent memory blowup on orphan storage

---
 .../java/com/google/bitcoin/core/AbstractBlockChain.java   | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/core/src/main/java/com/google/bitcoin/core/AbstractBlockChain.java b/core/src/main/java/com/google/bitcoin/core/AbstractBlockChain.java
index 53890063..da0fec2c 100644
--- a/core/src/main/java/com/google/bitcoin/core/AbstractBlockChain.java
+++ b/core/src/main/java/com/google/bitcoin/core/AbstractBlockChain.java
@@ -107,7 +107,7 @@ public abstract class AbstractBlockChain {
     private final CopyOnWriteArrayList<ListenerRegistration<BlockChainListener>> listeners;
 
     // Holds a block header and, optionally, a list of tx hashes or block's transactions
-    static class OrphanBlock {
+    class OrphanBlock {
         final Block block;
         final List<Sha256Hash> filteredTxHashes;
         final Map<Sha256Hash, Transaction> filteredTxn;
@@ -115,7 +115,10 @@ public abstract class AbstractBlockChain {
             final boolean filtered = filteredTxHashes != null && filteredTxn != null;
             Preconditions.checkArgument((block.transactions == null && filtered)
                                         || (block.transactions != null && !filtered));
-            this.block = block;
+            if (!shouldVerifyTransactions())
+                this.block = block.cloneAsHeader();
+            else
+                this.block = block;
             this.filteredTxHashes = filteredTxHashes;
             this.filteredTxn = filteredTxn;
         }