Add nullability annotations to module/spring-boot-http-codec

See gh-46587

Author: mhalbritter

module/spring-boot-http-codec/src/main/java/org/springframework/boot/http/codec/autoconfigure/CodecsAutoConfiguration.java

@@ -17,6 +17,7 @@
 package org.springframework.boot.http.codec.autoconfigure;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
+import org.jspecify.annotations.Nullable;
 
 import org.springframework.boot.autoconfigure.AutoConfiguration;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
@@ -29,7 +30,6 @@
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.Ordered;
 import org.springframework.core.annotation.Order;
-import org.springframework.core.env.Environment;
 import org.springframework.http.codec.CodecConfigurer;
 import org.springframework.util.MimeType;
 import org.springframework.util.unit.DataSize;
@@ -74,8 +74,7 @@ CodecCustomizer jacksonCodecCustomizer(ObjectMapper objectMapper) {
 	static class DefaultCodecsConfiguration {
 
 		@Bean
-		DefaultCodecCustomizer defaultCodecCustomizer(HttpCodecsProperties httpCodecProperties,
-				Environment environment) {
+		DefaultCodecCustomizer defaultCodecCustomizer(HttpCodecsProperties httpCodecProperties) {
 			return new DefaultCodecCustomizer(httpCodecProperties.isLogRequestDetails(),
 					httpCodecProperties.getMaxInMemorySize());
 		}
@@ -84,9 +83,9 @@ static final class DefaultCodecCustomizer implements CodecCustomizer, Ordered {
 
 			private final boolean logRequestDetails;
 
-			private final DataSize maxInMemorySize;
+			private final @Nullable DataSize maxInMemorySize;
 
-			DefaultCodecCustomizer(boolean logRequestDetails, DataSize maxInMemorySize) {
+			DefaultCodecCustomizer(boolean logRequestDetails, @Nullable DataSize maxInMemorySize) {
 				this.logRequestDetails = logRequestDetails;
 				this.maxInMemorySize = maxInMemorySize;
 			}

module/spring-boot-http-codec/src/main/java/org/springframework/boot/http/codec/autoconfigure/HttpCodecsProperties.java

@@ -16,6 +16,8 @@
 
 package org.springframework.boot.http.codec.autoconfigure;
 
+import org.jspecify.annotations.Nullable;
+
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.util.unit.DataSize;
 
@@ -40,7 +42,7 @@ public class HttpCodecsProperties {
 	 * WebClient instances. By default this is not set, in which case individual codec
 	 * defaults apply. Most codecs are limited to 256K by default.
 	 */
-	private DataSize maxInMemorySize;
+	private @Nullable DataSize maxInMemorySize;
 
 	public boolean isLogRequestDetails() {
 		return this.logRequestDetails;
@@ -50,11 +52,11 @@ public void setLogRequestDetails(boolean logRequestDetails) {
 		this.logRequestDetails = logRequestDetails;
 	}
 
-	public DataSize getMaxInMemorySize() {
+	public @Nullable DataSize getMaxInMemorySize() {
 		return this.maxInMemorySize;
 	}
 
-	public void setMaxInMemorySize(DataSize maxInMemorySize) {
+	public void setMaxInMemorySize(@Nullable DataSize maxInMemorySize) {
 		this.maxInMemorySize = maxInMemorySize;
 	}
 

module/spring-boot-http-codec/src/main/java/org/springframework/boot/http/codec/autoconfigure/package-info.java

@@ -17,4 +17,7 @@
 /**
  * Auto-configuration for HTTP codecs.
  */
+@NullMarked
 package org.springframework.boot.http.codec.autoconfigure;
+
+import org.jspecify.annotations.NullMarked;

module/spring-boot-http-codec/src/main/java/org/springframework/boot/http/codec/package-info.java

@@ -17,4 +17,7 @@
 /**
  * Support for web-based codecs.
  */
+@NullMarked
 package org.springframework.boot.http.codec;
+
+import org.jspecify.annotations.NullMarked;