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Document ResourceBundle limitations 

This commit adds a note to the documentation saying that ResourceBundle
does not support multiple bundles with the same base name.

Closes gh-27038
This commit is contained in:
Arjen Poutsma 2021-07-13 13:43:03 +02:00
parent 95d7f883ae
commit bf2790498b
1 changed files with 4 additions and 0 deletions
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src/docs/asciidoc/core/core-beans.adoc
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@ -10406,6 +10406,10 @@ You can also use the `MessageSourceAware` interface to acquire a reference to an
`ApplicationContext` that implements the `MessageSourceAware` interface is injected with `ApplicationContext` that implements the `MessageSourceAware` interface is injected with
the application context's `MessageSource` when the bean is created and configured. the application context's `MessageSource` when the bean is created and configured.
NOTE: Because Spring's `MessageSource` is based on Java's `ResourceBundle`, it does not merge
bundles with the same base name, but will only use the first bundle found.
Subsequent message bundles with the same base name are ignored.
NOTE: As an alternative to `ResourceBundleMessageSource`, Spring provides a NOTE: As an alternative to `ResourceBundleMessageSource`, Spring provides a
`ReloadableResourceBundleMessageSource` class. This variant supports the same bundle `ReloadableResourceBundleMessageSource` class. This variant supports the same bundle
file format but is more flexible than the standard JDK based file format but is more flexible than the standard JDK based