By default, Jetty uses a singleton shutdown thread, registered as a
shutdown hook, to stop its components. This single thread breaks the
restart logic in devtools as a second restart causes a second attempt to
start the singleton shutdown thread which fails with an
IllegalStateException. This processing is unnecessary in a Spring Boot
application as the application context’s lifecycle when ensure that
Jetty is shutdown.
This commit updates the embedded Jetty container to remove its
components from Jetty’s shutdown thread. This leaves the thread with
no components to manage at which point it removes its registration as a
shutdown hook.
Closes gh-3343
This commit improves support of the Resource Handling features
introduced in Spring Framework 4.1. Those features add new ways to
resolve and transform static resources in applications.
See [this blog
post](https://spring.io/blog/2014/07/24/spring-framework-4-1-handling-static-web-resources)
for more details.
The `ResourceUrlEncodinFilter` is added for compatible template engines:
Velocity and Thymeleaf. It assists them with rewriting the URLs of
static resources when rendering templates.
New keys are added in the `ResourceProperties` in order to configure
the Resource Handling chain. `ResourceResolvers` and
`ResourceTransformers` are registered accordingly in
`WebMvcAutoConfiguration`.
Here is an example of enabling a `ContentVersionStrategy` on all
static resources, meaning their names will be changed for cache
busting purposes by adding a content hash at the end of the file name.
Like "/js/jquery.js -> /js/jquery-872ca6a9fdda9e2c1516a84cff5c3bc6.js".
```
spring.resources.chain.enabled:true
spring.resources.chain.strategy.content.enabled:true
spring.resources.chain.strategy.content.paths:/**
```
Closes gh-1604
Closes gh-3123
Include support for a new <springProperty> element which can be used in
`logback-spring.xml` files to add properties from the Spring
Environment. For example:
<configuration>
...
<springProperty name="destination" source="my.loggger.extradest"/>
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<file>${destination}</file>
...
</file>
</appender>
...
</configuration>
Fixes gh-1788
Include support for a new <springProfile> element which can be used in
`logback-spring.xml` files to selectively enable or disable parts of the
configuration. For example:
<configuration>
...
<springProfile name="staging">
<logger name="sample.logback" level="TRACE" />
</springProfile>
...
</configuration>
Fixes gh-3338
Update AbstractLoggingSystem to support convention based logging
configuration specifically for Spring applications. Configurations with
the `-spring` suffix will now be loaded automatically (for example
`logback-spring.xml`).
This change allows for custom log configurations without needing to
reinitialize the logging system. When standard configurations are used
there is no way to prevent early initialization.
Fixes gh-2558
The default is now to reveal all details unless sensitive=true
(instead of only revealing then if sensitive was explicitly false).
The definition of "secure" also changes to something more sensible
where it is only true if security is enabled.
Fixes gh-2816
The default should be to generate a key from the prefix. Otherwise
if user sets the prefix and not the key it can pick up metrics from
another repository (which is what happens in the tests).
Update LogbackLoggingSystem to include status errors in the exception
rather than using `System.err`. Also perform additional cleanup in an
attempt to fix CI build failures.
Fixes gh-3309
Improve the "hints" section of the metadata so that each hint can provide
the reference to a value provider.
A value provider defines how a tool can discover the potential values of
a property based on the context. The provider is identifed by a name and
may have an arbitrary number of parameters.
Closes gh-3303
Update documentation section that discusses uber jars since it conflates
the concepts of the uber jar and the shading of dependencies into jars
(which may or may not be true uber jars).
Fixes gh-3321
Andy Wilkinson
Ivan Sopov
Stephane Nicoll
izeye
Dave Syer
Brian Clozel
Phillip Webb
Rob Baily
Ralph Schaer
Matt Benson