Add @internalapi annotation to japicmp exclusions (#14597)

Signed-off-by: Andriy Redko <andriy.redko@aiven.io>

Author: reta

CHANGELOG.md

@@ -34,6 +34,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Updated the `indices.query.bool.max_clause_count` setting from being static to dynamically updateable ([#13568](https://github.com/opensearch-project/OpenSearch/pull/13568))
 - Make the class CommunityIdProcessor final ([#14448](https://github.com/opensearch-project/OpenSearch/pull/14448))
 - Allow @InternalApi annotation on classes not meant to be constructed outside of the OpenSearch core ([#14575](https://github.com/opensearch-project/OpenSearch/pull/14575))
+- Add @InternalApi annotation to japicmp exclusions ([#14597](https://github.com/opensearch-project/OpenSearch/pull/14597))
 
 ### Deprecated
 

server/build.gradle

@@ -409,6 +409,7 @@ tasks.register("japicmp", me.champeau.gradle.japicmp.JapicmpTask) {
     failOnModification = true
     ignoreMissingClasses = true
     annotationIncludes = ['@org.opensearch.common.annotation.PublicApi', '@org.opensearch.common.annotation.DeprecatedApi']
+    annotationExcludes = ['@org.opensearch.common.annotation.InternalApi']
     txtOutputFile = layout.buildDirectory.file("reports/java-compatibility/report.txt")
     htmlOutputFile = layout.buildDirectory.file("reports/java-compatibility/report.html")
     dependsOn downloadJapicmpCompareTarget