Correct docs for use of static with @ConfigurationPropertiesBinding

Closes gh-45621

Author: wilkinsona

spring-boot-project/spring-boot-docs/src/docs/antora/modules/reference/pages/features/external-config.adoc

@@ -1141,11 +1141,10 @@ If you need custom type conversion, you can provide a javadoc:org.springframewor
 ====
 Beans used for property conversion are requested very early during the application lifecycle so make sure to limit the dependencies that your javadoc:org.springframework.core.convert.ConversionService[] is using.
 Typically, any dependency that you require may not be fully initialized at creation time.
-
-You should also declare any javadoc:org.springframework.boot.context.properties.ConfigurationProperties[format=annotation] beans using `static` methods to avoid "`bean is not eligible for getting processed by all BeanPostProcessors`" warnings.
 ====
 
 TIP: You may want to rename your custom javadoc:org.springframework.core.convert.ConversionService[] if it is not required for configuration keys coercion and only rely on custom converters qualified with javadoc:org.springframework.boot.context.properties.ConfigurationPropertiesBinding[format=annotation].
+When qualifying a `@Bean` method with `@ConfigurationPropertiesBinding`, the method should be `static` to avoid "`bean is not eligible for getting processed by all BeanPostProcessors`" warnings.
 
 
 

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/ConfigurationProperties.java

@@ -37,10 +37,6 @@
  * <p>
  * Note that contrary to {@code @Value}, SpEL expressions are not evaluated since property
  * values are externalized.
- * <p>
- * Static methods should be used when declaring {@code @ConfigurationProperties} beans to
- * ensure that "bean is not eligible for getting processed by all BeanPostProcessors"
- * warnings are not produced.
  *
  * @author Dave Syer
  * @since 1.0.0

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/properties/ConfigurationPropertiesBinding.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,10 +23,15 @@
 import java.lang.annotation.Target;
 
 import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.context.annotation.Bean;
 
 /**
  * Qualifier for beans that are needed to configure the binding of
  * {@link ConfigurationProperties @ConfigurationProperties} (e.g. Converters).
+ * <p>
+ * {@link Bean @Bean} methods that declare a {@code @ConfigurationPropertiesBinding} bean
+ * should be {@code static} to ensure that "bean is not eligible for getting processed by
+ * all BeanPostProcessors" warnings are not produced.
  *
  * @author Dave Syer
  * @since 1.3.0