Change the default polling trigger to 1 second

spring-integration-core/src/main/java/org/springframework/integration/endpoint/AbstractPollingEndpoint.java

@@ -87,7 +87,7 @@ public abstract class AbstractPollingEndpoint extends AbstractEndpoint implement
 	/**
 	 * A default polling period for {@link PeriodicTrigger}.
 	 */
-	public static final long DEFAULT_POLLING_PERIOD = 10;
+	public static final long DEFAULT_POLLING_PERIOD = 1000;
 
 	private final Collection<Advice> appliedAdvices = new HashSet<>();
 

spring-integration-core/src/test/java/org/springframework/integration/configuration/EnableIntegrationTests.java

@@ -667,13 +667,16 @@ public void testBridgeAnnotations() {
 		assertThat(testMessage).isSameAs(receive);
 		assertThat(this.bridgeOutput.receive(10)).isNull();
 
+		PollingConsumer pollableBridge = this.context.getBean("pollableBridge", PollingConsumer.class);
+		PeriodicTrigger periodicTrigger = TestUtils.getPropertyValue(pollableBridge, "trigger", PeriodicTrigger.class);
+		assertThat(periodicTrigger.getPeriodDuration()).isEqualTo(Duration.ofSeconds(1));
+
 		this.pollableBridgeInput.send(testMessage);
 		receive = this.pollableBridgeOutput.receive(10_000);
 		assertThat(receive).isNotNull();
 		assertThat(testMessage).isSameAs(receive);
 		assertThat(this.pollableBridgeOutput.receive(10)).isNull();
 
-
 		assertThatExceptionOfType(MessageDeliveryException.class)
 				.isThrownBy(() -> this.metaBridgeInput.send(testMessage))
 				.withMessageContaining("Dispatcher has no subscribers");
@@ -948,7 +951,8 @@ public PollableChannel pollableBridgeInput() {
 
 
 		@Bean
-		@BridgeFrom(value = "pollableBridgeInput", poller = @Poller(fixedDelay = "1000"))
+		@BridgeFrom(value = "pollableBridgeInput", poller = @Poller)
+		@EndpointId("pollableBridge")
 		public QueueChannel pollableBridgeOutput() {
 			return new QueueChannel();
 		}

src/reference/antora/modules/ROOT/pages/channel-adapter.adoc

@@ -89,6 +89,8 @@ See also xref:channel-adapter.adoc#channel-adapter-expressions-and-scripts[Chann
 NOTE: If no poller is provided, then a single default poller must be registered within the context.
 See xref:endpoint.adoc#endpoint-namespace[Endpoint Namespace Support] for more detail.
 
+NOTE: The default trigger for polling endpoint is a `PeriodicTrigger` instance with a 1 second fixed delay period.
+
 [IMPORTANT]
 .Important: Poller Configuration
 =====

src/reference/antora/modules/ROOT/pages/endpoint.adoc

@@ -79,7 +79,6 @@ PollingConsumer consumer = new PollingConsumer(channel, exampleHandler);
 NOTE: For more information regarding polling consumers, see xref:overview.adoc#overview-endpoints-channeladapter[Channel Adapter] and xref:channel-adapter.adoc#channel-adapter[Channel Adapter].
 
 There are many other configuration options for the polling consumer.
-For example, the trigger is a required property.
 The following example shows how to set the trigger:
 
 [source,java]
@@ -112,6 +111,8 @@ CronTrigger trigger = new CronTrigger("*/10 * * * * MON-FRI");
 
 The result of the trigger defined in the previous example is a trigger that triggers every ten seconds, Monday through Friday.
 
+NOTE: The default trigger for polling endpoint is a `PeriodicTrigger` instance with a 1 second fixed delay period.
+
 In addition to the trigger, you can specify two other polling-related configuration properties: `maxMessagesPerPoll` and `receiveTimeout`.
 The following example shows how to set these two properties:
 

src/reference/antora/modules/ROOT/pages/whats-new.adoc

@@ -42,6 +42,9 @@ See xref:gateway.adoc#gateway-no-response[Gateway Behavior When No response Arri
 - The `LockRegistry` provides template-like API to execute provided task while locked.
 See xref:distributed-locks.adoc[Distributed Locks] for more information.
 
+- The default trigger for polling endpoint is now a `PeriodicTrigger` instance with a 1 second fixed delay period; previously, the default was 10 milliseconds.
+See xref:endpoint.adoc#endpoint-pollingconsumer[Polling Consumer] for more information.
+
 [[x6.2-websockets]]
 === WebSockets Changes