fix: override executor replaces implementation event if not needed (#1874)

Author: csviri

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/api/config/ConfigurationServiceOverrider.java

@@ -4,7 +4,6 @@
 import java.util.Optional;
 import java.util.Set;
 import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
 import java.util.function.Consumer;
 
 import io.fabric8.kubernetes.client.Config;
@@ -191,13 +190,13 @@ public boolean closeClientOnStop() {
       @Override
       public ExecutorService getExecutorService() {
         return executorService != null ? executorService
-            : Executors.newFixedThreadPool(concurrentReconciliationThreads());
+            : super.getExecutorService();
       }
 
       @Override
       public ExecutorService getWorkflowExecutorService() {
         return workflowExecutorService != null ? workflowExecutorService
-            : Executors.newFixedThreadPool(concurrentWorkflowExecutorThreads());
+            : super.getWorkflowExecutorService();
       }
 
       @Override

operator-framework-core/src/test/java/io/javaoperatorsdk/operator/api/config/ConfigurationServiceOverriderTest.java

@@ -120,4 +120,5 @@ public <R extends HasMetadata> R clone(R object) {
     assertNotEquals(config.getInformerStoppedHandler(),
         overridden.getLeaderElectionConfiguration());
   }
+
 }

operator-framework-core/src/test/java/io/javaoperatorsdk/operator/processing/event/EventProcessorTest.java

@@ -15,10 +15,7 @@
 import org.slf4j.LoggerFactory;
 
 import io.fabric8.kubernetes.api.model.HasMetadata;
-import io.javaoperatorsdk.operator.api.config.ConfigurationServiceProvider;
-import io.javaoperatorsdk.operator.api.config.ControllerConfiguration;
-import io.javaoperatorsdk.operator.api.config.ExecutorServiceManager;
-import io.javaoperatorsdk.operator.api.config.RetryConfiguration;
+import io.javaoperatorsdk.operator.api.config.*;
 import io.javaoperatorsdk.operator.api.monitoring.Metrics;
 import io.javaoperatorsdk.operator.processing.event.rate.LinearRateLimiter;
 import io.javaoperatorsdk.operator.processing.event.rate.RateLimiter;
@@ -430,7 +427,10 @@ void executionOfReconciliationShouldNotStartIfProcessorStopped() throws Interrup
           return PostExecutionControl.defaultDispatch();
         });
     // one event will lock the thread / executor
-    ConfigurationServiceProvider.overrideCurrent(o -> o.withConcurrentReconciliationThreads(1));
+    ConfigurationServiceProvider.overrideCurrent(o -> {
+      o.withConcurrentReconciliationThreads(1);
+      o.withMinConcurrentReconciliationThreads(1);
+    });
     ExecutorServiceManager.reset();
     eventProcessor.start();
 
@@ -490,6 +490,7 @@ ControllerConfiguration controllerConfiguration(Retry retry, RateLimiter rateLim
     when(res.getRetry()).thenReturn(retry);
     when(res.getRateLimiter()).thenReturn(rateLimiter);
     when(res.maxReconciliationInterval()).thenReturn(Optional.of(Duration.ofMillis(1000)));
+    when(res.getConfigurationService()).thenReturn(new BaseConfigurationService());
     return res;
   }