Add an `DispatcherServletPath` interface which provides a much more
consistent way to discover the path of the main dispatcher servet.
Prior to this commit, auto-configurations would often make use of the
`ServerProperties` class to discover the dispatcher servlet path. This
mechanism isn't very explicit and also makes it hard for us to relocate
that property in Spring Boot 2.1.
This commit also reverts most of fddc9e9c7e since it is now clear that
the supporting multiple dispatcher servlet paths will be much more
involved that we originally anticipated.
Closes gh-13834
Previously, if a user defines a `@Bean` with a method that returns
`null`, injection by type will ignore that definition but the report
doesn't mention that candidate.
This commit improves the failure analyzer to look for user-defined beans
as well, detecting beans that are `null` matching the requested type
and including them in the report.
Closes gh-13531
This commit turns a lazy injection point for `HttpMessageConverters`
into an `ObjectProvider`-backed injection.
This allows to lazily rely on that bean without creating for it; in some
environments, such proxy creation can lead to issues like SPR-16990.
See gh-13785
This commit makes sure that Flyway/Liquibase migrates the schema if
necessary before a `JdbcTemplate` is made available as an injection
point.
This commit also adds a test that validates simple datasource
initialization (spring.datasource.*) happens before a `JdbcTemplate`
bean can be used.
Closes gh-13155
Prior to this commit, the `DefaultErrorWebExceptionHandler` would parse
the HTTP "Accept" headers when routing the request to the error handler;
if an error occured during parsing, an `InvalidMediaTypeException` would
be thrown and break the error handling for this request.
This commit ignores those exceptions and makes sure that the error
handling function does not override the response status or the error
itself with those exceptions.
Closes: gh-13372
