Indicates a public API that is stable for callers to use, but has no guarantee of stability for
extension. Consequently, the API should only be extended within the package containing the API.
For example:
An interface marked with this annotation can have new methods added to it.
A non-final class with this annotation can be marked final.
A class with this annotation can have new abstract methods added.
a non-final method with this annotation can be marked final.
The list above is just for illustration purposes and is not exhaustive.
Adding this annotation to an API is considered API-breaking.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-04-09 UTC."],[[["The latest version of the API documentation available is version 2.46.1, with previous versions listed down to 2.1.2."],["The `InternalExtensionOnly` interface indicates that while the API is stable for use, it is not guaranteed to be stable for extension, and should only be extended within its own package."],["Adding the `InternalExtensionOnly` annotation to an API is considered a breaking change to the API."],["The library is designated as a Beta version, which implies it is covered by the Pre-GA Offerings Terms, may have limited support, and compatibility between pre-GA versions is not guaranteed."],["The `value()` method within the `InternalExtensionOnly` interface provides context information on why the interface or class is annotated as `InternalExtensionOnly` and returns a String."]]],[]]