PeerGroup: print a log warn if there's no blockchain.

bitcoinj · May 5, 2014 · a893bdd · a893bdd
1 parent 0e74eba
commit a893bdd
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/core/src/main/java/com/google/bitcoin/core/PeerGroup.java b/core/src/main/java/com/google/bitcoin/core/PeerGroup.java
@@ -740,6 +740,10 @@ private boolean haveReadyInactivePeer(long nowMillis) {
     @Override
     protected void startUp() throws Exception {
         // This is run in a background thread by the Service implementation.
+        if (chain == null) {
+            // Just try to help catch what might be a programming error.
+            log.warn("Starting up with no attached block chain. Did you forget to pass one to the constructor?");
+        }
         vPingTimer = new Timer("Peer pinging thread", true);
         if (torClient != null) {
             log.info("Starting Tor/Orchid ...");