Javadoc and `@Nullable` annotation for `servletContext` parameter of `ConfigurableWebEnvironment.initPropertySources` are contradictory

[wilkinsona]

The javadoc states that servletContext may not be null:

spring-framework/spring-web/src/main/java/org/springframework/web/context/ConfigurableWebEnvironment.java

Line 42 in a5b0399

* @param servletContext the {@link ServletContext} (may not be {@code null})

But the parameter is annotated with @Nullable:

spring-framework/spring-web/src/main/java/org/springframework/web/context/ConfigurableWebEnvironment.java

Line 47 in a5b0399

void initPropertySources(@Nullable ServletContext servletContext, @Nullable ServletConfig servletConfig);