<dependency>
  <groupId>javax.validation</groupId>
  <artifactId>validation-api</artifactId>
  <version>2.0.0.Alpha1</version>
</dependency>

implementation 'javax.validation:validation-api:2.0.0.Alpha1'

implementation("javax.validation:validation-api:2.0.0.Alpha1")

libraryDependencies += "javax.validation" % "validation-api" % "2.0.0.Alpha1"

@Grapes(
  @Grab(group='javax.validation', module='validation-api', version='2.0.0.Alpha1')
)

<dependency org="javax.validation" name="validation-api" rev="2.0.0.Alpha1" />

[javax.validation/validation-api "2.0.0.Alpha1"]

'javax.validation:validation-api:jar:2.0.0.Alpha1'