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JSR 380's RI, Hibernate Validator version ${hibernate-validator.version} and its dependencies repackaged as OSGi bundle

There is a newer version: 5.1.0

/*
 * Hibernate Validator, declare and validate application constraints
 *
 * License: Apache License, Version 2.0
 * See the license.txt file in the root directory or .
 */
package org.hibernate.validator.internal.constraintvalidators.bv;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import javax.validation.constraints.AssertTrue;

/**
 * Validates that the value passed is true
 *
 * @author Alaa Nassef
 */
public class AssertTrueValidator implements ConstraintValidator {

	@Override
	public boolean isValid(Boolean bool, ConstraintValidatorContext constraintValidatorContext) {
		//null values are valid
		return bool == null || bool;
	}

}