1 files changed, 18 insertions, 12 deletions

diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 6ce8d19bfb..7f62402625 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -1442,16 +1442,19 @@ void CWallet::ReacceptWalletTransactions()
         CWalletTx& wtx = *(item.second);
 
         LOCK(mempool.cs);
-        wtx.AcceptToMemoryPool(false, maxTxFee);
+        CValidationState state;
+        wtx.AcceptToMemoryPool(false, maxTxFee, state);
     }
 }
 
 bool CWalletTx::RelayWalletTransaction()
 {
     assert(pwallet->GetBroadcastTransactions());
-    if (!IsCoinBase())
+    if (!IsCoinBase() && !isAbandoned() && GetDepthInMainChain() == 0)
     {
-        if (GetDepthInMainChain() == 0 && !isAbandoned() && InMempool()) {
+        CValidationState state;
+        /* GetDepthInMainChain already catches known conflicts. */
+        if (InMempool() || AcceptToMemoryPool(false, maxTxFee, state)) {
             LogPrintf("Relaying wtx %s\n", GetHash().ToString());
             RelayTransaction((CTransaction)*this);
             return true;
@@ -2290,7 +2293,11 @@ bool CWallet::CreateTransaction(const vector<CRecipient>& vecSend, CWalletTx& wt
                         CPubKey vchPubKey;
                         bool ret;
                         ret = reservekey.GetReservedKey(vchPubKey);
-                        assert(ret); // should never fail, as we just unlocked
+                        if (!ret)
+                        {
+                            strFailReason = _("Keypool ran out, please call keypoolrefill first");
+                            return false;
+                        }
 
                         scriptChange = GetScriptForDestination(vchPubKey.GetID());
                     }
@@ -2477,14 +2484,14 @@ bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey)
 
         if (fBroadcastTransactions)
         {
+            CValidationState state;
             // Broadcast
-            if (!wtxNew.AcceptToMemoryPool(false, maxTxFee))
-            {
-                // This must not fail. The transaction has already been signed and recorded.
-                LogPrintf("CommitTransaction(): Error: Transaction not valid\n");
-                return false;
+            if (!wtxNew.AcceptToMemoryPool(false, maxTxFee, state)) {
+                LogPrintf("CommitTransaction(): Transaction cannot be broadcast immediately, %s\n", state.GetRejectReason());
+                // TODO: if we expect the failure to be long term or permanent, instead delete wtx from the wallet and return failure.
+            } else {
+                wtxNew.RelayWalletTransaction();
             }
-            wtxNew.RelayWalletTransaction();
         }
     }
     return true;
@@ -3590,8 +3597,7 @@ int CMerkleTx::GetBlocksToMaturity() const
 }
 
 
-bool CMerkleTx::AcceptToMemoryPool(bool fLimitFree, CAmount nAbsurdFee)
+bool CMerkleTx::AcceptToMemoryPool(bool fLimitFree, CAmount nAbsurdFee, CValidationState& state)
 {
-    CValidationState state;
     return ::AcceptToMemoryPool(mempool, state, *this, fLimitFree, NULL, false, nAbsurdFee);
 }