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import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;

...

	@BeforeClass
	public static void setupClass() {
		final ValidatorFactory vf = Validation.buildDefaultValidatorFactory();
		validator = vf.getValidator();
	}
...
	@Test
	public void testCashierInfo() throws Exception {
		final char[] arr = new char[50];
		Arrays.fill(arr, 'S');
		final CashierInfo info = new CashierInfo(0, new String(arr), "0123456789012345");
		final Set<ConstraintViolation<CashierInfo>> violations = validator.validate(info);
		assertFalse(violations.isEmpty());
	}

=====

pom.xml
---
...
		<validation-api.version>1.1.0.Final</validation-api.version>
		<hibernate-validator.version>5.2.2.Final</hibernate-validator.version>
		<el-api.version>2.2.4</el-api.version>
...

		<!-- Validation -->
		<dependency>
			<groupId>javax.validation</groupId>
			<artifactId>validation-api</artifactId>
			<version>${validation-api.version}</version>
			<scope>provided</scope>
		</dependency>
		<dependency>
			<groupId>org.hibernate</groupId>
			<artifactId>hibernate-validator</artifactId>
			<version>${hibernate-validator.version}</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.glassfish.web</groupId>
			<artifactId>javax.el</artifactId>
			<version>${el-api.version}</version>
			<scope>test</scope>
		</dependency>