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-rw-r--r--src/main/java/org/traccar/handler/AcknowledgementHandler.java2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/java/org/traccar/handler/AcknowledgementHandler.java b/src/main/java/org/traccar/handler/AcknowledgementHandler.java
index c3f6038de..4c1085998 100644
--- a/src/main/java/org/traccar/handler/AcknowledgementHandler.java
+++ b/src/main/java/org/traccar/handler/AcknowledgementHandler.java
@@ -61,7 +61,7 @@ public class AcknowledgementHandler extends ChannelOutboundHandlerAdapter {
}
}
- private static class Entry {
+ private static final class Entry {
private final Object message;
private final ChannelPromise promise;