Although it's unlikely that the implementation of getPropertySources()
in a ConfigurableEnvironment would be overridden to return a different
MutablePropertySources instance than the one that the
ConfigurableEnvironment typically acts on, it is in fact possible.
In light of that possibility, this commit refactors
ConfigurableEnvironmentPropertySource so that it always obtains a fresh
PropertySources reference.
See gh-34861
Commit 3295289e17 fixed a number issues with placeholder resolution in
PropertySourcesPlaceholderConfigurer. However, in doing so, it replaced
a raw PropertySource with a CompositePropertySource which implements
EnumerablePropertySource.
Consequently, all property sources registered in the Environment must
now implement EnumerablePropertySource (which is not an actual
requirement). Otherwise, invocations of getPropertyNames() on the
CompositePropertySource result in an IllegalStateException, and that is
a breaking change which resulted in numerous build failures within the
Spring portfolio.
To address that regression, this commit introduces a private
ConfigurableEnvironmentPropertySource in
PropertySourcesPlaceholderConfigurer which is a "raw" PropertySource
that delegates directly to the PropertySources in a
ConfigurableEnvironment.
This commit also extracts the raw PropertySource for direct Environment
delegation into a new FallbackEnvironmentPropertySource.
See gh-17385
Closes gh-34861
Currently, the placeholder resolution algorithm in
PropertySourcesPlaceholderConfigurer fails in several scenarios, and
the root cause for this category of failures has actually existed since
PropertySourcesPlaceholderConfigurer was introduced in Spring Framework
3.1.
Specifically, PropertySourcesPlaceholderConfigurer creates its own
PropertySourcesPropertyResolver that indirectly delegates to another
"nested" PropertySourcesPropertyResolver to interact with
PropertySources from the Environment, which results in double
placeholder parsing and resolution attempts, and that behavior leads to
a whole category of bugs.
For example, #27947 was addressed in Spring Framework 5.3.16, and due
to #34315 and #34326 we have recently realized that additional bugs
exist with placeholder resolution: nested placeholder resolution can
fail when escape characters are used, and it is currently impossible
to disable the escape character support for nested resolution.
To address this category of bugs, we no longer indirectly use or
directly create a "nested" PropertySourcesPropertyResolver in
PropertySourcesPlaceholderConfigurer. Instead, properties from property
sources from the Environment are now accessed directly without
duplicate/nested placeholder resolution.
See gh-27947
See gh-34326
See gh-34862
Closes gh-34861
Prior to this commit, NamedParameterUtils in spring-r2dbc did not
properly expand reused collection parameters. Specifically, values in a
supplied collection were only expanded in the resulting query once, for
the first occurrence of the named parameter.
To address that, this commit effectively reinstates the original logic
for ExpandedQuery from NamedParameterUtils in the Spring Data R2DBC
project.
94958f5eb6/spring-data-r2dbc/src/main/java/org/springframework/data/r2dbc/core/NamedParameterUtils.java (L486)
Closes gh-34768
Update `ClassFileClassMetadata` so that member classes only include
immediate children. This aligns with the other `ClassMetadata`
implementations.
Closes gh-34869
Update `ClassFileClassMetadata` to align the behavior of
`getSuperClassName()` with other readers in that it returns
`null` for `package-info` classes.
See gh-34869
The last assertion of the new test method currently fails since "foo"
is only bound once.
java.lang.AssertionError:
Expected size: 2 but was: 1 in:
{0="foo"}
See gh-34768
This commit introduces a new constructor for CompositePropertySource
that accepts a `String name` and an Iterable<PropertySource<?>>, which
allows a CompositePropertySource to be constructed from existing
property sources, such as an instance of MutablePropertySources.
Closes gh-34862
As of gh-33806, the HttpComponents client request factory is forward
compatible with the 5.4+ versions of that library for configuring HTTP
request configuration.
This change would not tkae into account configuration set at the Spring
level because it would consider the default `RequestConfig` instance as
a custom one. This commit ensures that Spring sets its own configuration
if no custom configuration was set for all supported HttpComponents
generations.
Fixes gh-34851
Sam Brannen
Fawzi Essam
Phillip Webb
rstoyanchev
Brian Clozel