Call `get(Request request)` on delegates by default.

docs/src/main/asciidoc/spring-cloud-commons.adoc

@@ -1375,7 +1375,7 @@ The per-client configuration properties work for most of the properties, apart f
 
 NOTE: For the properties where maps where already used, where you can specify a different value per-client without using the `clients` keyword (for example, `hints`, `health-check.path`), we have kept that behaviour in order to keep the library backwards compatible. It will be modified in the next major release.
 
-NOTE: Starting with `4.0.4`, we have introduced the `callGetWithRequestOnDelegates` flag in `LoadBalancerProperties`. If this flag is set to `true`, `ServiceInstanceListSupplier#get(Request request)` method will be implemented to call `delegate.get(request)` in classes assignable from `DelegatingServiceInstanceListSupplier` that don't already implement that method, with the exclusion of `CachingServiceInstanceListSupplier` and `HealthCheckServiceInstanceListSupplier`, which should be placed in the instance supplier hierarchy directly after the supplier performing instance retrieval over the network, before any request-based filtering is done. For `4.0.x` the flag is set to `false` by default, however, since `4.1.0` it's going to be set to `true` by default.
+NOTE: Starting with `4.1.0`, we have introduced the `callGetWithRequestOnDelegates` flag in `LoadBalancerProperties`. If this flag is set to `true`, `ServiceInstanceListSupplier#get(Request request)` method will be implemented to call `delegate.get(request)` in classes assignable from `DelegatingServiceInstanceListSupplier` that don't already implement that method, with the exclusion of `CachingServiceInstanceListSupplier` and `HealthCheckServiceInstanceListSupplier`, which should be placed in the instance supplier hierarchy directly after the supplier performing instance retrieval over the network, before any request-based filtering is done. It is set to `true` by default.
 
 ===  AOT and Native Image Support
 

spring-cloud-commons/src/main/java/org/springframework/cloud/client/loadbalancer/LoadBalancerProperties.java

@@ -80,10 +80,10 @@ public class LoadBalancerProperties {
 	 * method, with the exclusion of {@code CachingServiceInstanceListSupplier} and
 	 * {@code HealthCheckServiceInstanceListSupplier}, which should be placed in the
 	 * instance supplier hierarchy directly after the supplier performing instance
-	 * retrieval over the network, before any request-based filtering is done. Note: in
-	 * 4.1, this behaviour will become the default
+	 * retrieval over the network, before any request-based filtering is done,
+	 * {@code true} by default.
 	 */
-	private boolean callGetWithRequestOnDelegates;
+	private boolean callGetWithRequestOnDelegates = true;
 
 	public HealthCheck getHealthCheck() {
 		return healthCheck;
@@ -138,32 +138,10 @@ public class LoadBalancerProperties {
 		return xForwarded;
 	}
 
-	/**
-	 * If this flag is set to {@code true},
-	 * {@code ServiceInstanceListSupplier#get(Request request)} method will be implemented
-	 * to call {@code delegate.get(request)} in classes assignable from
-	 * {@code DelegatingServiceInstanceListSupplier} that don't already implement that
-	 * method, with the exclusion of {@code CachingServiceInstanceListSupplier} and
-	 * {@code HealthCheckServiceInstanceListSupplier}, which should be placed in the
-	 * instance supplier hierarchy directly after the supplier performing instance
-	 * retrieval over the network, before any request-based filtering is done. Note: in
-	 * 4.1, this behaviour will become the default
-	 */
 	public boolean isCallGetWithRequestOnDelegates() {
 		return callGetWithRequestOnDelegates;
 	}
 
-	/**
-	 * If this flag is set to {@code true},
-	 * {@code ServiceInstanceListSupplier#get(Request request)} method will be implemented
-	 * to call {@code delegate.get(request)} in classes assignable from
-	 * {@code DelegatingServiceInstanceListSupplier} that don't already implement that
-	 * method, with the exclusion of {@code CachingServiceInstanceListSupplier} and
-	 * {@code HealthCheckServiceInstanceListSupplier}, which should be placed in the
-	 * instance supplier hierarchy directly after the supplier performing instance
-	 * retrieval over the network, before any request-based filtering is done. Note: in
-	 * 4.1, this behaviour will become the default
-	 */
 	public void setCallGetWithRequestOnDelegates(boolean callGetWithRequestOnDelegates) {
 		this.callGetWithRequestOnDelegates = callGetWithRequestOnDelegates;
 	}

spring-cloud-loadbalancer/src/test/java/org/springframework/cloud/loadbalancer/core/SameInstancePreferenceServiceInstanceListSupplierTests.java

@@ -62,7 +62,6 @@ class SameInstancePreferenceServiceInstanceListSupplierTests {
 	@BeforeEach
 	void setUp() {
 		LoadBalancerProperties properties = new LoadBalancerProperties();
-		properties.setCallGetWithRequestOnDelegates(true);
 		when(loadBalancerClientFactory.getProperties(any())).thenReturn(properties);
 		supplier = new SameInstancePreferenceServiceInstanceListSupplier(delegate, loadBalancerClientFactory);
 	}

spring-cloud-loadbalancer/src/test/java/org/springframework/cloud/loadbalancer/core/WeightedServiceInstanceListSupplierTests.java

@@ -188,7 +188,6 @@ class WeightedServiceInstanceListSupplierTests {
 	void shouldCallGetRequestOnDelegate() {
 		LoadBalancerClientFactory loadBalancerClientFactory = mock(LoadBalancerClientFactory.class);
 		LoadBalancerProperties properties = new LoadBalancerProperties();
-		properties.setCallGetWithRequestOnDelegates(true);
 		when(loadBalancerClientFactory.getProperties(any())).thenReturn(properties);
 		ServiceInstance one = serviceInstance("test-1", Collections.emptyMap());
 		ServiceInstance two = serviceInstance("test-2", Collections.emptyMap());

spring-cloud-loadbalancer/src/test/java/org/springframework/cloud/loadbalancer/core/ZonePreferenceServiceInstanceListSupplierTests.java

@@ -70,7 +70,6 @@ class ZonePreferenceServiceInstanceListSupplierTests {
 	@BeforeEach
 	void setUp() {
 		LoadBalancerProperties properties = new LoadBalancerProperties();
-		properties.setCallGetWithRequestOnDelegates(true);
 		when(loadBalancerClientFactory.getProperties(any())).thenReturn(properties);
 		supplier = new ZonePreferenceServiceInstanceListSupplier(delegate, zoneConfig, loadBalancerClientFactory);
 	}