cancel future when stop

application/src/main/java/org/thingsboard/server/service/cf/ctx/state/aggregation/RelatedEntitiesAggregationCalculatedFieldState.java

@@ -43,6 +43,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
+import java.util.concurrent.ScheduledFuture;
 
 import static java.util.concurrent.TimeUnit.SECONDS;
 
@@ -59,6 +60,8 @@ public class RelatedEntitiesAggregationCalculatedFieldState extends BaseCalculat
     private long deduplicationIntervalMs = -1;
     private Map<String, AggMetric> metrics;
 
+    private ScheduledFuture<?> reevaluationFuture;
+
     public RelatedEntitiesAggregationCalculatedFieldState(EntityId entityId) {
         super(entityId);
     }
@@ -71,8 +74,13 @@ public class RelatedEntitiesAggregationCalculatedFieldState extends BaseCalculat
         deduplicationIntervalMs = SECONDS.toMillis(configuration.getDeduplicationIntervalInSec());
     }
 
-    public void scheduleReevaluation() {
-        ctx.scheduleReevaluation(deduplicationIntervalMs, actorCtx);
+    @Override
+    public void close() {
+        super.close();
+        if (reevaluationFuture != null) {
+            reevaluationFuture.cancel(true);
+            reevaluationFuture = null;
+        }
     }
 
     @Override
@@ -142,6 +150,13 @@ public class RelatedEntitiesAggregationCalculatedFieldState extends BaseCalculat
         lastArgsRefreshTs = System.currentTimeMillis();
     }
 
+    public void scheduleReevaluation() {
+        ScheduledFuture<?> future = ctx.scheduleReevaluation(deduplicationIntervalMs, actorCtx);
+        if (future != null) {
+            reevaluationFuture = future;
+        }
+    }
+
     @Override
     public ListenableFuture<CalculatedFieldResult> performCalculation(Map<String, ArgumentEntry> updatedArgs, CalculatedFieldCtx ctx) throws Exception {
         boolean cfUpdated = updatedArgs != null && updatedArgs.isEmpty();
@@ -149,7 +164,7 @@ public class RelatedEntitiesAggregationCalculatedFieldState extends BaseCalculat
             Output output = ctx.getOutput();
             ObjectNode aggResult = aggregateMetrics(output);
             lastMetricsEvalTs = System.currentTimeMillis();
-            ctx.scheduleReevaluation(deduplicationIntervalMs, actorCtx);
+            scheduleReevaluation();
             return Futures.immediateFuture(TelemetryCalculatedFieldResult.builder()
                     .type(output.getType())
                     .scope(output.getScope())