From 78981bbb8f51345cdd087ae653de6f9d0fe6dea8 Mon Sep 17 00:00:00 2001
From: jmacxx <47253594+jmacxx@users.noreply.github.com>
Date: Fri, 10 Nov 2023 15:17:22 -0600
Subject: [PATCH] Fix NPE due to null collection access in
 maybeClearStaleRates.

---
 src/main/java/bisq/price/spot/ExchangeRateProvider.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/main/java/bisq/price/spot/ExchangeRateProvider.java b/src/main/java/bisq/price/spot/ExchangeRateProvider.java
index 56fe747..3006fb3 100644
--- a/src/main/java/bisq/price/spot/ExchangeRateProvider.java
+++ b/src/main/java/bisq/price/spot/ExchangeRateProvider.java
@@ -134,6 +134,9 @@ public String getPrefix() {
     }
 
     public void maybeClearStaleRates() {
+        if (get() == null) {
+            return;
+        }
         // a stale rate is older than the specified interval, except:
         // timestamp of 0L is used as special case re: CoinMarketCap and BitcoinAverage
         //   (https://github.com/bisq-network/bisq-pricenode/issues/23)