Spring-boot app with unkown #PastOrPresent annotation - spring-boot

Question

in spring-boot web-app,
when i use #PastOrPresent STS shows me this error :
(PastOrPresent cannot be resolved to a type)
but org.springframework.boot:spring-boot-starter-validation entry is already among the dependencies.
Gradle file
buildscript {
ext {
springBootVersion = '1.5.9.RELEASE'
}
repositories {
mavenCentral()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
}
}
apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'org.springframework.boot'
group = 'com.domain'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = 1.8
compileJava.options.encoding = "UTF-8"
compileTestJava.options.encoding = "UTF-8"
repositories {
mavenCentral()
}
dependencies {
compile('org.springframework.boot:spring-boot-starter-actuator')
compile('org.springframework.boot:spring-boot-actuator-docs')
compile('org.springframework.boot:spring-boot-starter-data-jpa')
compile('org.springframework.boot:spring-boot-starter-security')
compile('org.springframework.boot:spring-boot-starter-validation')
compile('org.springframework.boot:spring-boot-starter-web')
runtime('org.springframework.boot:spring-boot-devtools')
runtime('org.postgresql:postgresql')
testCompile('org.springframework.boot:spring-boot-starter-test')
testCompile('org.springframework.security:spring-security-test')
}
UPDATE of Gradle file
...
compile('org.springframework.boot:spring-boot-starter-validation'){
exclude group: 'org.hibernate', module: 'hibernate-validator:5.3.6.Final'
}
compile 'org.hibernate:hibernate-validator:6.0.7.Final'
...
| \--- org.hibernate:hibernate-validator:5.3.6.Final -> 6.0.7.Final
| \--- org.hibernate.validator:hibernate-validator:6.0.7.Final
| +--- javax.validation:validation-api:2.0.1.Final -> 1.1.0.Final
| +--- org.jboss.logging:jboss-logging:3.3.0.Final -> 3.3.1.Final
| \--- com.fasterxml:classmate:1.3.1 -> 1.3.4
have i some thing else to do ? while inside the entity i still have the same error. with new one : The type NotEmpty is deprecated (as shows the doc here)

Answer 1

The problem is that #PastOrPresent constraint is a part of Bean Validation 2.0 (see here), while the Spring Boot is still using Hibernate Validator 5.3 by default (see the dependencies here), which is BeanValidation 1.1. If you'd like to use this new constraint you would need to have an explicit dependency for Hibernate Validator 6.0 and exclude 5.4 version from your current dependencies.