As @Korgen mentioned in comments hibernate-validator-5.x.x isn’t compatible with validation-api-1.0.x. This is because of moving to new specification JSR-303 -> JSR-349.
There are two ways to solve this issue:
1. Downgrade hibernate validator version (which is implements JSR-303):
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>4.3.1.Final</version>
</dependency>
2. If you don’t want to move back from hibernate validator 5 to hibernate validator 4 another solution is to upgrade javax.validation to higher version (which is describe JSR-349):
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.1.0.Final</version>
</dependency>