OTel semantic conventions mandate certain resource attributes to present
on exported spans. This commits make sure that the attribute we add are
merged with the defaults, rather than replacing them.
See gh-36155
Micrometer added a new configuration option to its OTLP registry to
enable configuring the base time unit. These changes provide a
configuration property to support to it.
See gh-36393
This commit knowingly makes breaking API changes to
JerseyHealthEndpointAdditionalPathResourceFactory. We considered
other options but they all had the potential to be backwards
incompatible in one way or another. Faced with that situation we
concluded that the likelihood of anyone using the modified API
directly is small enough to warrant making the breaking changes.
If it becomes apparent that we have misjudged things we can revisit
the changes in the future.
Closes gh-36250
Add support for logging correlation IDs with Logback or Log4J2 whenever
Micrometer tracing is being used.
The `LoggingSystemProperties` class now accepts a defualt value resolver
which will be used whenever a value isn't in the environment. The
`AbstractLoggingSystem` provides a resolver that supports the
`logging.pattern.correlation` property and will return a value whenever
`LoggingSystem.EXPECT_CORRELATION_ID_PROPERTY` is set.
Using `LoggingSystem.EXPECT_CORRELATION_ID_PROPERTY` allows us to
provide a consistent width for the correlation ID, even when it's
missing from the MDC.
The exact correlation pattern returned will depend on the `LoggingSytem`
implementation. Currently Logback and Log4J2 are supported and both
make use of a custom converter which delegates to a new
`CorrelationIdFormatter` class.
Closes gh-33280
@ConditionalOnEnabledTracing is now applied to the minimal amount of
beans. The beans which are annotated with it are beans that will lead
to span sending to backends.
This leaves the majority of the Micrometer Tracing, Brave and
OpenTelemetry infrastructure untouched in tests.
Closes gh-35354
