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copied!<p>The simple answer is you cannot. <em>ConstraintValidatorContext</em> is an interface and there is no Bean Validation API to get an instance like this. You could write your own implementation, but to implement it properly you would have to re-implement a lot of functionality of a Bean Validation provider. Look for example at the Hibernate Validator specific implementation - <a href="https://github.com/hibernate/hibernate-validator/blob/master/engine/src/main/java/org/hibernate/validator/internal/engine/constraintvalidation/ConstraintValidatorContextImpl.java" rel="nofollow">https://github.com/hibernate/hibernate-validator/blob/master/engine/src/main/java/org/hibernate/validator/internal/engine/constraintvalidation/ConstraintValidatorContextImpl.java</a></p> <p>That said, I believe your attempt of reuse is misguided. This is not in the indent of Bean Validation and you are ending up with non portable and hard to maintain code. If you want to reuse existing constraints have a look at constraint composition, for example @NotEmpty reusing @NotNull and @Size</p> <pre><code>@Documented @Constraint(validatedBy = { }) @Target({ METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER }) @Retention(RUNTIME) @ReportAsSingleViolation @NotNull @Size(min = 1) public @interface NotEmpty { String message() default "{org.hibernate.validator.constraints.NotEmpty.message}"; Class<?>[] groups() default { }; Class<? extends Payload>[] payload() default { }; /** * Defines several {@code @NotEmpty} annotations on the same element. */ @Target({ METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER }) @Retention(RUNTIME) @Documented public @interface List { NotEmpty[] value(); } } </code></pre>

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