From aac6a7daf700ac7e05be0cd778e71d0075828aed Mon Sep 17 00:00:00 2001
From: Mike Hearn <mike@plan99.net>
Date: Sat, 30 Mar 2013 18:07:20 +0000
Subject: [PATCH] WalletTool: allow dumping the wallet without a chain.
 Resolves issue 357.

---
 .../main/java/com/google/bitcoin/tools/WalletTool.java   | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/tools/src/main/java/com/google/bitcoin/tools/WalletTool.java b/tools/src/main/java/com/google/bitcoin/tools/WalletTool.java
index f1ed77dd..064fcf85 100644
--- a/tools/src/main/java/com/google/bitcoin/tools/WalletTool.java
+++ b/tools/src/main/java/com/google/bitcoin/tools/WalletTool.java
@@ -271,7 +271,6 @@ public class WalletTool {
             logger = LogManager.getLogManager().getLogger("");
             logger.setLevel(Level.SEVERE);
         }
-        discovery = new DnsDiscovery(params);
         switch (netFlag.value(options)) {
             case PROD: 
                 params = NetworkParameters.prodNet();
@@ -285,7 +284,6 @@ public class WalletTool {
             default:
                 throw new RuntimeException("Unreachable.");
         }
-
         mode = modeFlag.value(options);
 
         // Allow the user to override the name of the chain used.
@@ -598,7 +596,7 @@ public class WalletTool {
                 }
             }
         } else {
-            peers.addPeerDiscovery(discovery);
+            peers.addPeerDiscovery(new DnsDiscovery(params));
         }
     }
 
@@ -749,7 +747,10 @@ public class WalletTool {
     }    
     
     private static void dumpWallet() throws BlockStoreException {
-        setup();  // To get the chain height so we can estimate lock times.
+        // Setup to get the chain height so we can estimate lock times, but don't wipe the transactions if it's not
+        // there just for the dump case.
+        if (chainFileName.exists())
+            setup();
         System.out.println(wallet.toString(true, chain));
     }
 }