Add support for reactive Resilience4jBulkheadProvider to provide bulkhead support for reactive operations (Mono and Flux).

docs/modules/ROOT/pages/spring-cloud-circuitbreaker-resilience4j/bulkhead-pattern-supporting.adoc

@@ -28,3 +28,41 @@ public Customizer<Resilience4jBulkheadProvider> defaultBulkheadCustomizer() {
 }
 ----
 
+== Reactive Bulkhead Pattern Supporting
+
+If you are using reactive programming with Spring Cloud CircuitBreaker, you can leverage the `ReactiveResilience4jBulkheadProvider` to support the Bulkhead pattern in reactive pipelines.
+This provider decorates `Mono` and `Flux` instances to ensure bulkhead constraints are applied during reactive operations.
+
+Spring Cloud CircuitBreaker Resilience4j reactive support only uses the `SemaphoreBulkhead`.
+If the property `spring.cloud.circuitbreaker.resilience4j.enableSemaphoreDefaultBulkhead` is set to `false`, a warning will be logged, and the `ReactiveResilience4jBulkheadProvider` will still use the `SemaphoreBulkhead`.
+
+== Configuring Reactive Bulkhead
+
+The `ReactiveResilience4jBulkheadProvider` can be customized using a `Customizer` bean, as shown below:
+
+[source,java]
+----
+@Bean
+public Customizer<ReactiveResilience4jBulkheadProvider> reactiveBulkheadCustomizer() {
+    return provider -> provider.configureDefault(id -> new Resilience4jBulkheadConfigurationBuilder()
+        .bulkheadConfig(BulkheadConfig.custom().maxConcurrentCalls(4).build())
+        .build());
+}
+----
+
+You can also add individual bulkhead configurations for specific use cases:
+
+[source,java]
+----
+@Bean
+public Customizer<ReactiveResilience4jBulkheadProvider> reactiveSpecificBulkheadCustomizer() {
+    return provider -> provider.configure(builder -> {
+        builder.bulkheadConfig(BulkheadConfig.custom()
+            .maxConcurrentCalls(2)
+            .build());
+    }, "serviceBulkhead");
+}
+----
+
+For more details, see the https://resilience4j.readme.io/docs/examples-1#decorate-mono-or-flux-with-a-bulkhead[Resilience4j Reactive Bulkhead Examples].
+

spring-cloud-circuitbreaker-resilience4j/src/main/java/org/springframework/cloud/circuitbreaker/resilience4j/ReactiveResilience4JCircuitBreaker.java

@@ -73,6 +73,7 @@ public class ReactiveResilience4JCircuitBreaker implements ReactiveCircuitBreake
 		this(id, groupName, config, circuitBreakerRegistry, timeLimiterRegistry, circuitBreakerCustomizer, false);
 	}
 
+	@Deprecated
 	public ReactiveResilience4JCircuitBreaker(String id, String groupName,
 			Resilience4JConfigBuilder.Resilience4JCircuitBreakerConfiguration config,
 			CircuitBreakerRegistry circuitBreakerRegistry, TimeLimiterRegistry timeLimiterRegistry,

spring-cloud-circuitbreaker-resilience4j/src/main/java/org/springframework/cloud/circuitbreaker/resilience4j/ReactiveResilience4JCircuitBreakerFactory.java

@@ -59,6 +59,7 @@ public class ReactiveResilience4JCircuitBreakerFactory extends
 		this(circuitBreakerRegistry, timeLimiterRegistry, null, null);
 	}
 
+	@Deprecated
 	public ReactiveResilience4JCircuitBreakerFactory(CircuitBreakerRegistry circuitBreakerRegistry,
 			TimeLimiterRegistry timeLimiterRegistry,
 			Resilience4JConfigurationProperties resilience4JConfigurationProperties) {