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Expose Elasticsearch API nullability information to Kotlin compiler. (#43912) (#44518)

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This change allows the Kotlin compiler to type check methods annotated with the
org.elasticsearch.common.Nullable annotation in Elasticsearch Java
APIs as described in: https://kotlinlang.org/docs/reference/java-interop.html#jsr-305-support.

(cherry picked from commit 0d0485ad9cf10e16b75b862b023b42827c375599)
This commit is contained in:
Mark Vieira 2019-07-25 12:16:38 -07:00 committed by GitHub
parent 21971feae8
commit a89860160b
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2 changed files with 7 additions and 0 deletions
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3
libs/core/build.gradle
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@ -73,6 +73,9 @@ publishing {
}
dependencies {
// This dependency is used only by :libs:core for null-checking interop with other tools
compileOnly "com.google.code.findbugs:jsr305:3.0.2"
testCompile "com.carrotsearch.randomizedtesting:randomizedtesting-runner:${versions.randomizedrunner}"
testCompile "junit:junit:${versions.junit}"
testCompile "org.hamcrest:hamcrest:${versions.hamcrest}"

4
libs/core/src/main/java/org/elasticsearch/common/Nullable.java
View File

@ -19,6 +19,8 @@
package org.elasticsearch.common;
import javax.annotation.CheckForNull;
import javax.annotation.meta.TypeQualifierNickname;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
@ -33,6 +35,8 @@ import java.lang.annotation.Target;
*
*/
@Documented
@TypeQualifierNickname
@CheckForNull
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.PARAMETER, ElementType.FIELD, ElementType.METHOD})
public @interface Nullable {