safe multithreading config writes

4 years ago · 901a4520fd
1 changed files with 2 additions and 1 deletions
--- a/src/main/java/com/sparrowwallet/sparrow/io/Config.java
+++ b/src/main/java/com/sparrowwallet/sparrow/io/Config.java
@ -277,12 +277,13 @@ public class Config {
        flush();
    }

-    private void flush() {
+    private synchronized void flush() {
        Gson gson = getGson();
        try {
            File configFile = getConfigFile();
            Writer writer = new FileWriter(configFile);
            gson.toJson(this, writer);
+            writer.flush();
            writer.close();
        } catch (IOException e) {
            //Ignore