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Clarifiy instantiation method priority for rest parameter types #47607

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Clarifiy instantiation method priority for rest parameter types #47607

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16 changes: 9 additions & 7 deletions docs/src/main/asciidoc/rest.adoc
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Expand Up @@ -2881,17 +2881,19 @@ However, you can change this default behavior and constrain a provider to:
=== Parameter mapping

All <<request-parameters,Request Parameters>> can be declared as link:{jdkapi}/java/lang/String.html[`String`],
but also any of the following types:
but also as any of the following types:

- Types for which a link:{jaxrsapi}/jakarta/ws/rs/ext/ParamConverter.html[`ParamConverter`] is available via a registered
1. Types for which a link:{jaxrsapi}/jakarta/ws/rs/ext/ParamConverter.html[`ParamConverter`] is available via a registered
link:{jaxrsapi}/jakarta/ws/rs/ext/ParamConverterProvider.html[`ParamConverterProvider`].
- Primitive types.
- Types that have a constructor that accepts a single link:{jdkapi}/java/lang/String.html[`String`] argument.
- Types that have a static method named `valueOf` or `fromString` with a single link:{jdkapi}/java/lang/String.html[`String`] argument
2. Primitive types.
3. Types that have a constructor that accepts a single link:{jdkapi}/java/lang/String.html[`String`] argument.
4. Types that have a static method named `valueOf` or `fromString` with a single link:{jdkapi}/java/lang/String.html[`String`] argument
that return an instance of the type. If both methods are present then `valueOf` will be used unless
the type is an `enum` in which case `fromString` will be used.
- link:{jdkapi}/java/util/List.html[`List<T>`], link:{jdkapi}/java/util/Set.html[`Set<T>`], or
link:{jdkapi}/java/util/SortedSet.html[`SortedSet<T>`], where `T` satisfies any above criterion.
5. link:{jdkapi}/java/util/List.html[`List<T>`], link:{jdkapi}/java/util/Set.html[`Set<T>`], or
link:{jdkapi}/java/util/SortedSet.html[`SortedSet<T>`], where `T` satisfies 1, 3 or 4 above.

For 3 and 4, constructor instantiation is prioritesed above method instantiation. Public, protected, and package private constructors and methods are supported for instantiation.

The following example illustrates all those possibilities:

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