From 44944a62d0dbc502941cb53e89f25037907f9c9f Mon Sep 17 00:00:00 2001
From: Mike Hearn <hearn@google.com>
Date: Mon, 18 Nov 2013 18:54:43 +0100
Subject: [PATCH] Payment channels: clear a static analysis thread safety
 warning.

---
 .../bitcoin/protocols/channels/PaymentChannelClientState.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/src/main/java/com/google/bitcoin/protocols/channels/PaymentChannelClientState.java b/core/src/main/java/com/google/bitcoin/protocols/channels/PaymentChannelClientState.java
index 75dcd5179..1f3566e26 100644
--- a/core/src/main/java/com/google/bitcoin/protocols/channels/PaymentChannelClientState.java
+++ b/core/src/main/java/com/google/bitcoin/protocols/channels/PaymentChannelClientState.java
@@ -126,7 +126,7 @@ public class PaymentChannelClientState {
     /**
      * Returns true if the tx is a valid settlement transaction.
      */
-    public boolean isSettlementTransaction(Transaction tx) {
+    public synchronized boolean isSettlementTransaction(Transaction tx) {
         try {
             tx.verify();
             tx.getInput(0).verify(multisigContract.getOutput(0));