See gh-23002

See gh-23002

Closes gh-23002

See gh-23073

This commit improves FreeMarkerConfigurerTests in spring-webmvc by
testing against FreeMarkerConfigurer instead of
FreeMarkerConfigurationFactoryBean and moves the original
FreeMarkerConfigurationFactoryBeanTests to spring-context-support in
the org.springframework.ui.freemarker package.

Closes gh-23073

See gh-23068

Closes gh-23030

Consistent with ConcurrentModel and also with treatment of empty values
from async attributes.

Closes gh-23038

Closes gh-22989

Closes gh-23098

Prior to this commit, MockHttpServletRequest.setCookies() produced one
Cookie header per supplied cookie, resulting in multiple Cookie headers
which violates the specification.

This commit fixes this by ensuring that all cookie name-value pairs are
stored under a single Cookie header, separated by a semicolon.

Closes gh-23074

Closes gh-23093

This commit allows to configure a custom path separator when parsing and
matching path patterns with `PathPatternParser`, but also when parsing
incoming paths as `PathContainer` instances.

Closes gh-23092

Similar to fix applied to Synchronoss implementation in #cef98e.

This commit renames currentTransaction() to forCurrentTransaction() for
greater clarity.

Closes gh-23086

Closes gh-23087

1. Add contentType and filename options to PartBuilder.

2. Revert recently committed #44659f since asyncPart can't properly
support Publisher of Part (only Mono, can't support filename), and
replace that with support for Part in the regular part method.

Closes gh-23083

Improve Javadoc
Consistently reject Publisher unless using asyncPart
Consistently set Content-Type when specified

See gh-23075

Closes gh-23075

Beginning with Spring Framework 5.0, non-null checks for the
requiredType in the following methods were inadvertently removed with
the internal switch to ResolvableType.forRawClass(requiredType).

- BeanFactory.getBean(Class<T>, Object...)
- BeanFactory.getBeanProvider(Class<T>)
- AutowireCapableBeanFactory.resolveNamedBean(Class<T>)

This commit restores those non-null checks.

Closes gh-23045

This commit introduces support for consistent ordering of Properties
created by CollectionFactory.createStringAdaptingProperties().

Specifically, the created Properties instance sorts properties
alphanumerically based on their keys.

Closes gh-23081

Closes gh-23049

Closes gh-23039