Use Duration.ZERO whenever possible

spring-context/src/main/java/org/springframework/resilience/retry/MethodRetrySpec.java

@@ -52,7 +52,7 @@ public record MethodRetrySpec(
 		Duration maxDelay) {
 
 	public MethodRetrySpec(MethodRetryPredicate predicate, long maxAttempts, Duration delay) {
-		this(predicate, maxAttempts, delay, Duration.ofMillis(0), 1.0, Duration.ofMillis(Long.MAX_VALUE));
+		this(predicate, maxAttempts, delay, Duration.ZERO, 1.0, Duration.ofMillis(Long.MAX_VALUE));
 	}
 
 	public MethodRetrySpec(MethodRetryPredicate predicate, long maxAttempts, Duration delay,

spring-context/src/test/java/org/springframework/scheduling/config/ScheduledTaskTests.java

@@ -90,7 +90,7 @@ class ScheduledTaskTests {
 
 	@Test
 	void singleExecutionShouldNotHaveNextExecution() {
-		ScheduledTask scheduledTask = taskRegistrar.scheduleOneTimeTask(new OneTimeTask(countingRunnable, Duration.ofSeconds(0)));
+		ScheduledTask scheduledTask = taskRegistrar.scheduleOneTimeTask(new OneTimeTask(countingRunnable, Duration.ZERO));
 		Awaitility.await().atMost(Duration.ofSeconds(5)).until(() -> countingRunnable.executionCount > 0);
 		assertThat(scheduledTask.nextExecution()).isNull();
 	}

spring-core/src/test/java/org/springframework/core/retry/MaxAttemptsRetryPolicyTests.java

@@ -39,7 +39,7 @@ class MaxAttemptsRetryPolicyTests {
 
 	@Test
 	void maxAttempts() {
-		var retryPolicy = RetryPolicy.builder().maxAttempts(2).delay(Duration.ofMillis(0)).build();
+		var retryPolicy = RetryPolicy.builder().maxAttempts(2).delay(Duration.ZERO).build();
 		var backOffExecution = retryPolicy.getBackOff().start();
 		var throwable = mock(Throwable.class);
 

spring-core/src/test/java/org/springframework/core/retry/RetryPolicyTests.java

@@ -209,7 +209,7 @@ class RetryPolicyTests {
 		@Test
 		void maxDelayPreconditions() {
 			assertThatIllegalArgumentException()
-					.isThrownBy(() -> RetryPolicy.builder().maxDelay(Duration.ofMillis(0)))
+					.isThrownBy(() -> RetryPolicy.builder().maxDelay(Duration.ZERO))
 					.withMessage("Invalid duration (0ms): maxDelay must be positive.");
 			assertThatIllegalArgumentException()
 					.isThrownBy(() -> RetryPolicy.builder().maxDelay(Duration.ofMillis(-1)))

spring-core/src/test/java/org/springframework/core/retry/RetryTemplateTests.java

@@ -51,7 +51,7 @@ class RetryTemplateTests {
 	void configureRetryTemplate() {
 		var retryPolicy = RetryPolicy.builder()
 				.maxAttempts(3)
-				.delay(Duration.ofMillis(0))
+				.delay(Duration.ZERO)
 				.build();
 
 		retryTemplate.setRetryPolicy(retryPolicy);
@@ -171,7 +171,7 @@ class RetryTemplateTests {
 
 		var retryPolicy = RetryPolicy.builder()
 				.maxAttempts(Integer.MAX_VALUE)
-				.delay(Duration.ofMillis(0))
+				.delay(Duration.ZERO)
 				.includes(IOException.class)
 				.build();
 
@@ -194,13 +194,13 @@ class RetryTemplateTests {
 			argumentSet("Excludes",
 						RetryPolicy.builder()
 							.maxAttempts(Integer.MAX_VALUE)
-							.delay(Duration.ofMillis(0))
+							.delay(Duration.ZERO)
 							.excludes(FileNotFoundException.class)
 							.build()),
 			argumentSet("Includes & Excludes",
 						RetryPolicy.builder()
 							.maxAttempts(Integer.MAX_VALUE)
-							.delay(Duration.ofMillis(0))
+							.delay(Duration.ZERO)
 							.includes(IOException.class)
 							.excludes(FileNotFoundException.class)
 							.build())

spring-core/src/testFixtures/java/org/springframework/core/testfixture/io/buffer/LeakAwareDataBufferFactory.java

@@ -76,11 +76,11 @@ public class LeakAwareDataBufferFactory implements DataBufferFactory {
 
 	/**
 	 * Checks whether all the data buffers allocated by this factory have also been released.
-	 * If not, then an {@link AssertionError} is thrown. Typically used from a JUnit <em>after</em>
+	 * <p>If not, then an {@link AssertionError} is thrown. Typically used from a JUnit <em>after</em>
 	 * method.
 	 */
 	public void checkForLeaks() {
-		checkForLeaks(Duration.ofSeconds(0));
+		checkForLeaks(Duration.ZERO);
 	}
 
 	/**

spring-webflux/src/test/java/org/springframework/web/reactive/DispatcherHandlerTests.java

@@ -71,7 +71,7 @@ class DispatcherHandlerTests {
 		context.refresh();
 
 		MockServerWebExchange exchange = MockServerWebExchange.from(MockServerHttpRequest.get("/"));
-		new DispatcherHandler(context).handle(exchange).block(Duration.ofSeconds(0));
+		new DispatcherHandler(context).handle(exchange).block(Duration.ZERO);
 
 		assertThat(exchange.getResponse().getBodyAsString().block(Duration.ofSeconds(5))).isEqualTo("1");
 	}
@@ -94,7 +94,7 @@ class DispatcherHandlerTests {
 				.build();
 
 		MockServerWebExchange exchange = MockServerWebExchange.from(request);
-		new DispatcherHandler(context).handle(exchange).block(Duration.ofSeconds(0));
+		new DispatcherHandler(context).handle(exchange).block(Duration.ZERO);
 
 		verifyNoInteractions(webHandler);
 	}

spring-webflux/src/test/java/org/springframework/web/reactive/result/method/annotation/RequestParamMapMethodArgumentResolverTests.java

@@ -91,7 +91,7 @@ class RequestParamMapMethodArgumentResolverTests {
 
 
 	private Object resolve(MethodParameter parameter, ServerWebExchange exchange) {
-		return this.resolver.resolveArgument(parameter, null, exchange).block(Duration.ofMillis(0));
+		return this.resolver.resolveArgument(parameter, null, exchange).block(Duration.ZERO);
 	}