ConcurrentHashMap implements `containsKey` with `get`. By removing a
redundant call to `containsKey`, we guarantee better performance in our
counter services.
The geek inside measured this with JMH, and found under 4 threads of
contention, throughput on this check was 40% higher in success case.
Benchmark Mode Cnt Score Error Units
TestBenchmarks.containsKeyAndGet_success thrpt 30 432.389 ± 20.616 ops/us
TestBenchmarks.get_success thrpt 30 606.789 ± 10.848 ops/us
Closes gh-6379
Previously, the shutdown endpoint would spawn a new thread to perform
the shutdown but did not explicitly configure its thread context
class loader (TCCL). This mean that the new thread would use the
request thread's TCCL as its TCCL. This meant that a different TCCL
would be used compared to a shutdown triggered by the shutdown hook
and also caused problems with Tomcat's thread leak detection logic.
This commit updates the shutdown endpoint to explicitly configure the
TCCL of the shutdown thread to be the ClassLoader that loaded the
endpoint's class.
Closes gh-6361
Previously, the shutdown endpoint would spawn a new thread to perform
the shutdown but did not explicitly configure its thread context
class loader (TCCL). This mean that the new thread would use the
request thread's TCCL as its TCCL. This meant that a different TCCL
would be used compared to a shutdown triggered by the shutdown hook
and also caused problems with Tomcat's thread leak detection logic.
This commit updates the shutdown endpoint to explicitly configure the
TCCL of the shutdown thread to be the ClassLoader that loaded the
endpoint's class.
Closes gh-6361
Update WebRequestTraceFilter so that additional post processing can be
applied to traced request headers. The postProcessRequestHeaders method
can be used to remove or change map entries before they are returned.
Fixes gh-6309
Where possible, code that previously synchronized on this (or on the
class in the case of static methods) has been updated to use an
internal monitor object instead. This allows the locking model that's
employed to be an implementation detail rather than part of the
class's API.
Classes that override a synchronized method continue to declare
the overriding method as synchronized. This ensures that locking
is consistent across the superclass and its subclass.
Closes gh-6262
This commit polishes b0fbc7e, throwing an exception when an attempt is
made to configure management-specific SSL without also configuring a
custom management port. The testing of management-specific SSL
configuration has also been improved.
See gh-6057
Closes gh-4810
Move Neo4J auto-configuration from `autoconfigure.neo4j` to
`autoconfigure.data.neo4j` since it's intrinsically linked to Spring
Data.
See gh-5458
See gh-6142
When a custom management.port is used, the child context is configured
with an EmbeddedServletContainerFactory bean that has the same class
as the parent context’s EmbeddedServletContainerFactory bean. This
ensures that the child context uses the same type of embedded container
as its parent when there are multiple embedded containers on the
classpath. It also causes a failure when the custom
EmbeddedServletContainerFactory subclass cannot be instantiated, for
example because it’s an anonymous inner-class.
This commit improves the diagnostics so that we fail fast with an
information exception message when we detect that the embedded servlet
container factory bean’s class cannot be instantiated.
Closes gh-6193
This commit changes the default version of Tomcat to 8.5.3 while
also retaining support for Tomcat 8.0 and 7.0. The main difference
in 8.5 is that the ServerSocketFactory abstraction that allowed the
TrustStore and KeyStore to be configured programatically no longer
exists. This logic has been replaced with the use of a custom URL
protocol (springbootssl) that provides access to the key store and
trust store of an SslStoreProvider. In addition to working with 8.5,
this approach has the advantage of also working with 8.0 and 7.0.
Closes gh-6164
This commit adds `@AliasFor` meta-data to annotations that declare an
alias attribute.
`@ConditionalOnProperty` and `@AutoconfigureRestDocs` were not migrated
due to the use of `AnnotationMetadata#getAnnotationAttributes`.
Closes gh-5187
Previously, if the `contextPath` of the application wasn't the root, the
HAL browser could not initialize since the `entryPoint` was referring to
an invalid location.
This commit makes sure to take the `contextPath` into account.
Closes gh-5814
Previously, SimpleInMemoryRepository used a ConcurrentReferenceHashMap
to store its locks. The type of map will discard its entries when the
JVM comes under GC pressure. With the code in its previous form, this
could lead to a NullPointerException when the following occurred:
1. putIfAbsent returned null indicating that a new entry has been added
to the map
2. GC pressure caused the map to discard the new entry
3. get returned null as the entry has been discard
There are two problems with the existing code:
1. Its usage of a ConcurrentMap is incorrect. The correct usage is:
a. Call get to see if the map already contains a lock
b. If the lock is null, create a new one
c. Call putIfAbsent to add the new lock
d. If the return value is non-null, another thread has created the
lock and it should be used. If the return value is null, use the
new lock created in b.
2. Once the use of ConcurrentMap has been corrected, the fact that it is
a ConcurrentReferenceHashMap means that different threads could
access the same value using different locks. This would occur if one
thread has retrieved a lock from the map and is using it, while GC
causes the lock to be removed from the map. Another thread then
attempts to get the lock and, as GC pressure has remove it, a new
lock is created allowing concurrent access to the same value.
This commit updates the code to use the ConcurrentMap correctly and also
replaces the ConcurrentReferenceHashMap with a ConcurrentHashMap. This
means that the repository will now use slightly more memory but this is
outweighed by the benefits of thread-safe updates and no risk of an NPE.
Closes gh-6115
This commit adds a Jest-based health indicator for ElasticSearch. If both
Jest and the Spring Data are available, the latter takes precedence as it
provides more information.
Closes gh-3178
"Starter POM" is a confusing term as it implies the starter may be a
POM while it's actually a jar artifact like any other dependency. To
reduce the confusion (especially in the way such starter should be
declared in the build), the term Starter POM has been renamed to Starter.
Closes gh-5966
Update EndpointWebMvcAutoConfiguration so that ApplicationFailedEvents
cause the management context to close.
Prior to this commit if an application failed to start (for example
because `server.port` was already in use) the management context would
remain open and the application would not exit.
Fixes gh-5388
This commit improves the `InfoContributor` infrastructure as follows:
* `InfoEndpoint` no longer breaks its public API and returns a Map as
before
* `Info` is now immutable
* All properties of the build are now displayed. Since we control the
generation of that file, there is no longer a mode to restrict what's
shown
* Build info is now generated in `META-INF/build-info.properties` by
default
Closes gh-5734
Reorganize web related classes for better separation of concerns.
Mainly this involves moving classes from `o.s.b.context.embedded`
that aren't directly tied to embedded servlet containers to
`o.s.b.web` and relocating everything from `o.s.b.context.web`.
See gh-5822
Move the @LocalServerPort to org.springframework.boot.context.embedded
since it's only really useful when working with embedded servlet
containers.
See gh-5822
Add an additional property to LogFileMvcEndpoint to allow log files to
be read from an external location. This is helpful when a launch.script
is used to start the boot-application and the logfile is written by a
redirect of stdout/stderr.
Fixes gh-4255
Closes gh-4836
Extract ApplicationContextHeaderFilter to a top-level class from
EndpointWebMvcAutoConfiguration and make the header field public.
Fixes gh-5726
Closes gh-5784
Before this change the app context closes and metrics that have not
yet been exported ccan be orphaned. The design of this feature is simple:
use Closeable where possible, so that it will be called automatically
by Spring on shutdown.
Fixes gh-5771
The MetricCopyExporter has had the capability for a while to keep
track of counters internally. This change aligns that with the
PrefixMetricGroupExporter.
Fixes gh-5762
Previously, if the filter chain threw an unhandled exception,
WebRequestTraceFilter would record a trace with a response status of
200. This occurred because response.getStatus() would return 200 as
the container had not yet caught the exception and mapped it to an
error response.
This commit updates WebRequestTraceFilter to align its behaviour with
MetricsFilter. It now assumes that the response status will be a 500
and only updates that to the status of the response if the call to the
filter chain returns successfully.
To avoid making a breaking change to the signature of the protected
enhanceTrace method, an HttpServletResponseWrapper is used to include
the correct status in the trace.
Closes gh-5331
Flyway 4.0 provides support for repeatable migrations that do not
have a version. When such a migration has been performed,
MigrationInfo.getMigrationVersion() will return null and, previously,
FlywayEndpoint would fail with an NPE.
This commit updates FlywayEndpoint to use null as the version when
MigrationInfo.getMigrationVersion() returns null.
Closes gh-5700
This commit moves the `shell.auth` property to `shell.auth.type`. The
previous situation was unfortunate since `shell.auth` was both a group
and a particular property.
Closes gh-5139
Ensure any ChildManagementContext created to start a management server
on a different port uses the same EmbeddedServletContainerFactory type.
Fixes gh-5474
Add `endpoints.metrics.filter.gauge-submissions` and
`endpoints.metrics.filter.counter-submissions` properties which can be
used to fine-tune how MetricsFilter submits metrics.
Use `per-http-method` to group by the the HTTP method, `merged` to
combine or both (`merged,per-http-method`) to submit both in forms.
Closes gh-5102
Rework the new testing support so that @SpringApplicationTest can be
used for standard integration tests, web integration tests with a
mock Servlet environment and web integration tests with an embedded
servlet container. This means that it a replacement for 1.3's
@IntegrationTest and @WebIntegrationTest and allows all
SpringApplication testing to be configured using a common annotation.
The old @IntegrationTest and @WebIntegrationTest along with their
supporting classes have been reinstated to their previous form (while
remaining deprecated). This should ensure that they continue to work
in 1.4 exactly as they did in 1.3 giving users a smooth path to
@SpringApplicationTest.
See gh-5477
This commit polihes the original Neo4j contribution in several areas.
Rather than providing the packages to scan, this commit rearranges the
`EntityScan` and `EntityScanRegistrar` so that the logic can be shared
for other components. If no package is provided, scanning now defaults to
the "auto-configured" package(s) and a `@NodeEntityScan` annotation
allows to override that.
The configuration has also been updated to detect the driver based on the
`uri` property. If the embedded driver is available we use that by
default. If it is not available, we're trying to connect to a Neo4j
server running on localhost. It is possible to disable the embedded mode
or set the `uri` parameter explicitly to deviate from these defaults.
The sample no longer relies on the embedded driver for licensing reason:
rather it expects an instance running on localhost (like other
data-related samples) and gracefully ignore any connection error. A
README has been added in the sample to further explain the available
options;
Closes gh-5458
This is a follow-on from the work done in 5009933. Now that SPR-14015
has been fixed, constructor injection can also be used for parameterised
dependencies, including optional dependencies that are injected via
an ObjectProvider.
Closes gh-5306
This commit updates the Maven plugin to generate a
`META-INF/boot/build.properties` file with various build-specific
settings (group, artifact, name, version and build time). Additionally,
the plugin can be configured to write an arbitrary number of additional
properties.
A new `BuildProperties` bean is automatically exposed when such a file is
present. If that bean is present, an `InfoContributor` is automatically
created to expose that information under the `build` key.
As for the git contributor, it is possible to only display the core
settings or everything using the `management.info.build.mode` property.
See gh-2559
Rather than exposing a raw String with the epoch time, GitProperties
now exposes the actual `java.util.Date`. `InfoProperties` has been
improved to return such data type when the raw value is an epoch time.
This commit polish the new info contributor infrastructure by migrating
`GitInfo` to `GitProperties`. `InfoProperties` provides an abstraction
that exposes unstructured data in an immutable way.
The `GitInfoContributor` now accepts a "mode" that determines if all data
should be exposed or only a sub-set of known keys.
Closes gh-2644
Previously, the ehcache statistics were computed on the activity of the
last minute which gives a "live" overview. All others cache managers,
including JCache, provides a "cumulative" metrics (i.e. the hit/miss
ratio since the creation of the cache or the last time it got cleared).
Ths commit aligns the ehcache statistics to provide a similar semantics
as the other cache managers. The side effect is that the metrics are now
available, even if there is no cache activity at all at the moment.
Closes gh-4891
This commit updates "simple" configuration classes to use constructor
injection. Simple means that there are no optional dependencies
(@Autowired(required=false) is not used), and none of the dependencies
use generics.
Configuration classes that are not simple will be updated in a second
pass once https://jira.spring.io/browse/SPR-14015 has been fixed.
See gh-5306
`InfoProvider` is now `InfoContributor` and contributes to the `Info`
instance via a builder. The `Info` instance is immutable. Each
contributor can be disabled via the `management.info.<name>.enabled`
key or all can be disabled using `management.info.defaults.enabled` (this
is similar to what the health endpoint does).
By default, all keys from the environment starting with `info.` are
exposed. If a `git.properties` file is present in the classpath, the
content of `GitInfo` is exposed using the `git` key.
A `SimpleInfoContributor` and `AbstractEnvironmentInfoContributor` are
available for convenience. `InfoContributor` instances can be ordered
the usual way, with a default order provided by
`InfoProviderAutoConfiguration#DEFAULT_ORDER`.
Closes gh-3492
This commit moves `GitInfo` to a general "project info" area that will be
further improved with others project related information.
Deprecate `spring.git.properties` in favour of `spring.info.git.location`
Closes gh-2484
Previously, if endpoints.enabled was false setting
endpoints.docs.enabled=true or endpoints.actuator.enabled=true would
have no effect as their entire configuration class was conditional
on endpoints.enabled being true.
This commit updates the conditions on the configuration class so that
it is conditional on either the actuator or docs endpoint being enabled.
Closes gh-5007
Plugin disabling logic was broken by e009d3e4. Prior to this change,
a plugin would be disabled if it or any of the implemented interfaces
in its inheritance hierarchy were configured as being disabled. The
offending commit inverted the logic so that the plugin would be
enabled if any part of it was NOT configured as being disabled.
This commit restores the logic such that the early return happens only
in the negative case.
Previously, the tests were written as though
PluginContext#getPlugin(Class) would consider the specified class
against the runtime type of the plugin (not an unreasonable
assumption); rather this method considers the broader 'plugin type'.
This commit rewrites the test to seek by plugin type and assert the
absence of the disabled plugins.
Closes gh-5032
Support for configuring an endpoint’s path separately from its id was
introduced in 97255785, but it didn’t work for a variety of reasons:
1. Some custom MVC endpoints did not have configuration properties
bound to them
2. Some generic endpoints rejected the path property as they were
configured not to ignore unknown fields
3. The property used to configure the path was dependent on the id
of the endpoint. This meant that the path property’s name would
change if the endpoint’s id was changed
This commit addresses these problems:
1. @ConfigurationProperties has been added to custom MvcEndpoints where
it was missing
2. Generic endpoints have been updated to ignore unknown fields,
allowing the path of their MVC adapter to be configured
3. Rather than using the id of a generic endpoint to determine the name
of its path property, the prefix or value of the endpoint’s
@ConfigurationProperties annotation is used instead. Any generic
endpoint that is not annotated with @ConfigurationProperties is
ignored, making its path unconfigurable.
Closes gh-5105
The Jolokia auto-configuration requires ServletWrappingController from
Spring MVC to be on the classpath. This commit updates the
auto-configuration to make it conditional on the presence of this
class.
Closes gh-5153
Update the requestsWithDisallowedMethodsAreRejected test to use PATCH
rather than HEAD. The change is to allow support for Spring Framework
4.3 which will implicitly map HEAD requests to GET.
Pre-flight requests are also only for "non-simple" HTTP methods [1]
(i.e. anything but GET, HEAD, POST) so there is really no such a thing
as a pre-flight request for HEAD.
[1] https://www.w3.org/TR/cors/#resource-preflight-requests
We rarely use the same configuration in multiple test classes, but
Spring’s Test framework caches each context by default. For projects
with large numbers of integration tests, this can lead to tens of
contexts being cached. This increases memory usage, live thread count,
etc for no benefit.
This commit adds @DirtiesContext to the integration tests in
spring-boot, spring-boot-autoconfigure, and spring-boot-actuator so
that the context is closed once the test class has completed.
See gh-5141
Previously, WebRequestTraceFilter would call request.getParameterMap()
before deciding whether or not the parameters should be included in
the trace. For a POST request, this had the unwanted side-effect
of always reading the request body.
This commit updates WebRequestTraceFilter so that it checks that
parameters are to be included in the trace before calling
request.getParameterMap()
Closes gh-5089
Hikari and Commons DBCP2 are already validating that the connection is
valid before borrowing it from the pool. This commit makes that behaviour
consistent by enabling that feature for the Tomcat and Commons DBCP data
sources.
Since a validation query is required in those cases, the infrastructure
of `DataSourceHealthIndicator` has been merged in a single place: the
`DatabaseDriver` enum provides not only the driver class names but also
the validation query, if any.
Closes gh-4906
When `@EnableConfigurationProperties` is defined, Spring Boot
automatically registers a bean in the context for each class specified
on the annotation. Previously, the name of the bean only included the
prefix which leads to conflict if two different classes use the same
prefix.
This commit changes the bean name structure to be <prefix>-<fqn> where
prefix is the prefix used on the annotation and <fqn> the fully qualified
name of the target class.
Closes gh-4395
Previously, Spring Boot mapped both `DataSourceProperties` and the actual
`DataSource` implementation to the same prefix. This results in a huge
amount of keys in the `spring.datasource` namespace with no way to
identify those that are valid for the pooled data source in use.
This commit maps the four pooled data sources we support in four isolated
namespace, keeping `spring.datasource` only for the common settings.
These are `spring.datasource.tomcat`, `spring.datasource.hikari`,
`spring.datasource.dbcp` and `spring.datasource.dbcp2` for the Tomcat,
Hikari, Commons DBCP and Commons DBCP2 implementations respectively.
Closes gh-2183
Spring Boot’s metrics require all values to be Numbers. A Dropwizard
Gauge can have a non-Number value. Previously, to prevent this causing
a problem, MetricRegistryMetricReader would check the value of a Gauge
when it’s being added and ignore it if it had a non-Number value.
Unfortunately, retrieving the value of a Gauge can take a non-trivial
amount of time (hence CachedGauge) so this approach, while functional,
could be improved.
This commit updates the filtering to happen when a Metric is being
retrieved from MetricRegistryMetricReader (via findOne or findAll)
when its value is required anyway. At this point, any Gauge with a
non-Number value is ignored.
Closes gh-4874
Previously, HalJsonMvcEndpoint used a redirect to go from path/ to path.
When the actuator’s configured to use a custom context path this
redirect was leading to an infinite redirect loop.
This commit removes the redirect in favour of updating the controller
advice to apply the links to requests for path and path/.
Closes gh-4853
This commit completes the changes to consistently used static final
fields for Log instances that were started in ec2f33f9. Specifically it:
- Removes this. when accessing logger fields that are now static
- Renames some fields from log to logger
- Makes some logger fields static
See gh-4784
Ensure that Collections.isEmpty() is used to check if there are no
elements in a collections. This is more explicit and can be faster than
calling .size().
Closes gh-4783
If the user provides their own ServerProperties bean we want to peek
at it to see if they set the port (and only that) when we are deciding
if the actuator context needs to be created. This happens very early
(in a @Condition) so we need to be very defensive. There are already
quite a few checks in place to prevent a ServerProperties bean from
being instantiated unless we really need it, and yet, when it is
we can do more.
This change creates the bean (and the ManagementProperties) in a
throwaway BeanFactory using the same BeanDefinition as the main
context. This ensures that when the main context bean is created
it will be in the "natural" order and binding to the Environment
can take place as normal.
Fixes gh-4631
This change permanently removes links from the endpoints that return
arrays or collections, and also disables them in the rest of the
endpoints (except /actuator) by default.
Fixes gh-4616
Previously, the default RestTemplate that is used OpenTsdbGaugeWriter
was not used with its default configuration. Notably this meant that
it would have infinite connect and read timeouts. This is problematic
as it can cause metric writing to hang and block the scheduler for
performing any other tasks.
This commit updates OpenTsdbGaugeWriter to use a default connect
timeout of 10 seconds and a default read timeout of 30 seconds. A
constructor has been added to ease the configuration of these
timeouts. The existing option of providing your own RestTemplate
(via setRestTemplate) remains.
Closes gh-4698
Add a `server.server-header` property which can be used to override the
`server` header usually sent back automatically by Tomcat/Jetty or
Undertow.
See https://www.owasp.org/index.php/Securing_tomcat for background.
Fixes gh-4461
Closes gh-4504
Adrian Cole
Johnny Lim
Andy Wilkinson
Phillip Webb
Spring Buildmaster
Lari Hotari
Stephane Nicoll
Vedran Pavic
Venil Noronha
Alex Antonov
Johannes Edmeier
Ruben Dijkstra
Dave Syer
sebastiankirsch
Huang YunKun
Michael Hunger
Anand Shah
Meang Akira Tanaka
Eddú Meléndez
Matt Benson
mkwaczynski
mnhock
Kirill Vlasov