> This checker checks the values of the `@since` tag found in the documentation > comment for an element against the release in which the element first > appeared. > > Real since value of an API element is computed as the oldest release in which > the given API element was introduced. That is: > - for modules, classes and interfaces, the release in which the element with > the given qualified name was introduced > - for constructors, the release in which the constructor with the given VM > descriptor was introduced > - for methods and fields, the release in which the given method or field with > the given VM descriptor became a member of its enclosing class or interface, > whether direct or inherited > > Effective since value of an API element is computed as follows: > - if the given element has a `@since` tag in its javadoc, it is used > - in all other cases, return the effective since value of the enclosing > element > > The since checker verifies that for every API element, the real since value > and the effective since value are the same, and reports an error if they are > not. > > Preview method are handled as per JEP 12, if `@PreviewFeature` is used > consistently going forward then the checker doesn't need to be updated with > every release. The checker has explicit knowledge of preview elements that > came before `JDK 14` because they weren't marked in a machine understandable > way and preview elements that came before `JDK 17` that didn't have > `@PreviewFeature`. > > Important note : We only check code written since `JDK 9` as the releases > used to determine the expected value of `@since` tags are taken from the > historical data built into `javac` which only goes back that far > > The intial comment at the beginning of `SinceChecker.java` holds more > information into the program. > > I already have filed issues and fixed some wrong tags like in #18640, #18032, > #18030, #18055, #18373, #18954, #18972.
Nizar Benalla has updated the pull request incrementally with one additional commit since the last revision: avoid using `continue`, fix mistake in last commit ------------- Changes: - all: https://git.openjdk.org/jdk/pull/18934/files - new: https://git.openjdk.org/jdk/pull/18934/files/90805b21..542f361f Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=18934&range=12 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18934&range=11-12 Stats: 2 lines in 1 file changed: 0 ins; 1 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/18934.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/18934/head:pull/18934 PR: https://git.openjdk.org/jdk/pull/18934
