Java tutorial
/* * Copyright (c) 2007 NTT DATA Corporation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package jp.terasoluna.fw.validation; import static org.hamcrest.core.Is.is; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertSame; import static org.junit.Assert.assertThat; import static org.junit.Assert.assertTrue; import static org.junit.Assert.fail; import java.util.ArrayList; import org.apache.commons.validator.Field; import org.apache.commons.validator.ValidatorAction; import org.apache.commons.validator.ValidatorException; import org.apache.commons.validator.Var; import org.junit.After; import org.junit.Test; import uk.org.lidalia.slf4jtest.TestLogger; import uk.org.lidalia.slf4jtest.TestLoggerFactory; import static uk.org.lidalia.slf4jtest.LoggingEvent.error; import static java.util.Arrays.asList; import org.springframework.test.util.ReflectionTestUtils; /** * {@link jp.terasoluna.fw.validation.FieldChecks} ? * <p> * <h4>???</h4> TERASOLUNA????? * <p> * @see jp.terasoluna.fw.validation.FieldChecks */ public class FieldChecksTest07 { private TestLogger logger = TestLoggerFactory.getTestLogger(FieldChecks.class); /** * ?? */ @After public void tearDown() { logger.clear(); } /** * testValidateHankakuKanaString01() <br> * <br> * () <br> * A <br> * <br> * () bean:null<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * ?bean?null???true??????? <br> * @throws Exception ????? */ @Test public void testValidateHankakuKanaString01() throws Exception { // ?? // bean : null Object bean = null; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateHankakuKanaString(bean, va, field, errors); // assertTrue(b); assertEquals(0, errors.addErrorCount); } /** * testValidateHankakuKanaString02() <br> * <br> * () <br> * A <br> * <br> * () bean:""<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * ?bean????true??????? <br> * @throws Exception ????? */ @Test public void testValidateHankakuKanaString02() throws Exception { // ?? // bean : "" Object bean = ""; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateHankakuKanaString(bean, va, field, errors); // assertTrue(b); assertEquals(0, errors.addErrorCount); } /** * testValidateHankakuKanaString03() <br> * <br> * () <br> * A <br> * <br> * () bean:"?"<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * ?bean???????????true??????? <br> * @throws Exception ????? */ @Test public void testValidateHankakuKanaString03() throws Exception { // ?? // bean : "?" Object bean = "?"; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateHankakuKanaString(bean, va, field, errors); // assertTrue(b); assertEquals(0, errors.addErrorCount); } /** * testValidateHankakuKanaString04() <br> * <br> * () <br> * A <br> * <br> * () bean:"?"<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:false<br> * () errors:bean,field,va???addErrors???<br> * <br> * ?bean????????????false??????? <br> * @throws Exception ????? */ @Test public void testValidateHankakuKanaString04() throws Exception { // ?? // bean : "?" Object bean = "?"; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateHankakuKanaString(bean, va, field, errors); // assertFalse(b); // ? assertEquals(1, errors.addErrorCount); // ? ArrayList<?> beanList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "beanList"); assertSame(bean, beanList.get(0)); ArrayList<?> vaList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "vaList"); assertSame(va, vaList.get(0)); ArrayList<?> fieldList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "fieldList"); assertSame(field, fieldList.get(0)); } /** * testValidateHankakuString01() <br> * <br> * () <br> * A <br> * <br> * () bean:null<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * ?bean?null???true??????? <br> * @throws Exception ????? */ @Test public void testValidateHankakuString01() throws Exception { // ?? // bean : null Object bean = null; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateHankakuString(bean, va, field, errors); // assertTrue(b); assertEquals(0, errors.addErrorCount); } /** * testValidateHankakuString02() <br> * <br> * () <br> * A <br> * <br> * () bean:""<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * ?bean????true??????? <br> * @throws Exception ????? */ @Test public void testValidateHankakuString02() throws Exception { // ?? // bean : "" Object bean = ""; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateHankakuString(bean, va, field, errors); // assertTrue(b); assertEquals(0, errors.addErrorCount); } /** * testValidateHankakuString03() <br> * <br> * () <br> * A <br> * <br> * () bean:"1a"<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * ?bean???????????true??????? <br> * @throws Exception ????? */ @Test public void testValidateHankakuString03() throws Exception { // ?? // bean : "1a" Object bean = "1a"; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateHankakuString(bean, va, field, errors); // assertTrue(b); assertEquals(0, errors.addErrorCount); } /** * testValidateHankakuString04() <br> * <br> * () <br> * A <br> * <br> * () bean:""<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:false<br> * () errors:bean,field,va???addErrors???<br> * <br> * ?bean????????????false??????? <br> * @throws Exception ????? */ @Test public void testValidateHankakuString04() throws Exception { // ?? // bean : "" Object bean = ""; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateHankakuString(bean, va, field, errors); // assertFalse(b); // ? assertEquals(1, errors.addErrorCount); // ? ArrayList<?> beanList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "beanList"); assertSame(bean, beanList.get(0)); ArrayList<?> vaList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "vaList"); assertSame(va, vaList.get(0)); ArrayList<?> fieldList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "fieldList"); assertSame(field, fieldList.get(0)); } /** * testValidateZenkakuString01() <br> * <br> * () <br> * A <br> * <br> * () bean:null<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * ?bean?null???true??????? <br> * @throws Exception ????? */ @Test public void testValidateZenkakuString01() throws Exception { // ?? // bean : null Object bean = null; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateZenkakuString(bean, va, field, errors); // assertTrue(b); assertEquals(0, errors.addErrorCount); } /** * testValidateZenkakuString02() <br> * <br> * () <br> * A <br> * <br> * () bean:""<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * ?bean????true??????? <br> * @throws Exception ????? */ @Test public void testValidateZenkakuString02() throws Exception { // ?? // bean : "" Object bean = ""; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateZenkakuString(bean, va, field, errors); // assertTrue(b); assertEquals(0, errors.addErrorCount); } /** * testValidateZenkakuString03() <br> * <br> * () <br> * A <br> * <br> * () bean:""<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * ?bean??????????true??????? <br> * @throws Exception ????? */ @Test public void testValidateZenkakuString03() throws Exception { // ?? // bean : "" Object bean = ""; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateZenkakuString(bean, va, field, errors); // assertTrue(b); assertEquals(0, errors.addErrorCount); } /** * testValidateZenkakuString04() <br> * <br> * () <br> * A <br> * <br> * () bean:"1a"<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:false<br> * () errors:bean,field,va???addErrors???<br> * <br> * ?bean???????????false??????? <br> * @throws Exception ????? */ @Test public void testValidateZenkakuString04() throws Exception { // ?? // bean : "1a" Object bean = "1a"; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateZenkakuString(bean, va, field, errors); // assertFalse(b); // ? assertEquals(1, errors.addErrorCount); // ? ArrayList<?> beanList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "beanList"); assertSame(bean, beanList.get(0)); ArrayList<?> vaList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "vaList"); assertSame(va, vaList.get(0)); ArrayList<?> fieldList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "fieldList"); assertSame(field, fieldList.get(0)); } /** * testValidateZenkakuKanaString01() <br> * <br> * () <br> * A <br> * <br> * () bean:null<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * ?bean?null???true??????? <br> * @throws Exception ????? */ @Test public void testValidateZenkakuKanaString01() throws Exception { // ?? // bean : null Object bean = null; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateZenkakuKanaString(bean, va, field, errors); // assertTrue(b); assertEquals(0, errors.addErrorCount); } /** * testValidateZenkakuKanaString02() <br> * <br> * () <br> * A <br> * <br> * () bean:""<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * ?bean????true??????? <br> * @throws Exception ????? */ @Test public void testValidateZenkakuKanaString02() throws Exception { // ?? // bean : "" Object bean = ""; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateZenkakuKanaString(bean, va, field, errors); // assertTrue(b); assertEquals(0, errors.addErrorCount); } /** * testValidateZenkakuKanaString03() <br> * <br> * () <br> * A <br> * <br> * () bean:""<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * ?bean??????????true??????? <br> * @throws Exception ????? */ @Test public void testValidateZenkakuKanaString03() throws Exception { // ?? // bean : "" Object bean = ""; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateZenkakuKanaString(bean, va, field, errors); // assertTrue(b); assertEquals(0, errors.addErrorCount); } /** * testValidateZenkakuKanaString04() <br> * <br> * () <br> * A <br> * <br> * () bean:"1a?"<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:false<br> * () errors:bean,field,va???addErrors???<br> * <br> * ?bean???????????false??????? <br> * @throws Exception ????? */ @Test public void testValidateZenkakuKanaString04() throws Exception { // ?? // bean : "1a?" Object bean = "1a?"; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateZenkakuKanaString(bean, va, field, errors); // assertFalse(b); // ? assertEquals(1, errors.addErrorCount); // ? ArrayList<?> beanList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "beanList"); assertSame(bean, beanList.get(0)); ArrayList<?> vaList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "vaList"); assertSame(va, vaList.get(0)); ArrayList<?> fieldList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "fieldList"); assertSame(field, fieldList.get(0)); } /** * testValidateProhibited01() <br> * <br> * () <br> * A <br> * <br> * () bean:null<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * ?bean?null???true??????? <br> * @throws Exception ????? */ @Test public void testValidateProhibited01() throws Exception { // ?? // bean : null Object bean = null; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateProhibited(bean, va, field, errors); // assertTrue(b); assertEquals(0, errors.addErrorCount); } /** * testValidateProhibited02() <br> * <br> * () <br> * A <br> * <br> * () bean:""<br> * () va:not null<br> * () field:not null<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * ?bean????true??????? <br> * @throws Exception ????? */ @Test public void testValidateProhibited02() throws Exception { // ?? // bean : "" Object bean = ""; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateProhibited(bean, va, field, errors); // assertTrue(b); assertEquals(0, errors.addErrorCount); } /** * testValidateProhibited03() <br> * <br> * () <br> * G <br> * <br> * () bean:"test"<br> * () va:not null<br> * () field:var:<br> * chars=null<br> * () errors:not null<br> * <br> * () :ValidatorException<br> * "var[chars] must be specified."<br> * () :<br> * "var[chars] must be specified."<br> * <br> * var?chars?null???ValidatorException?????? <br> * @throws Exception ????? */ @Test public void testValidateProhibited03() throws Exception { // ?? // bean : "test" Object bean = "test"; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); Var var = new Var(); var.setName("chars"); var.setValue(null); field.addVar(var); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); try { // new FieldChecks().validateProhibited(bean, va, field, errors); fail(); } catch (ValidatorException e) { // String message = "var[chars] must be specified."; assertEquals(message, e.getMessage()); assertThat(logger.getLoggingEvents(), is(asList(error(message)))); } } /** * testValidateProhibited04() <br> * <br> * () <br> * G <br> * <br> * () bean:"test"<br> * () va:not null<br> * () field:var:<br> * chars=""<br> * () errors:not null<br> * <br> * () :ValidatorException<br> * "var[chars] must be specified."<br> * () :<br> * "var[chars] must be specified."<br> * <br> * var?chars?null???ValidatorException?????? <br> * @throws Exception ????? */ @Test public void testValidateProhibited04() throws Exception { // ?? // bean : "test" Object bean = "test"; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); Var var = new Var(); var.setName("chars"); var.setValue(""); field.addVar(var); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); try { // new FieldChecks().validateProhibited(bean, va, field, errors); fail(); } catch (ValidatorException e) { // String message = "var[chars] must be specified."; assertEquals(message, e.getMessage()); assertThat(logger.getLoggingEvents(), is(asList(error(message)))); } } /** * testValidateProhibited05() <br> * <br> * () <br> * A <br> * <br> * () bean:""<br> * () va:not null<br> * () field:var:<br> * chars="?t"<br> * () errors:not null<br> * <br> * () boolean:false<br> * () errors:bean,field,va???addErrors???<br> * <br> * bean?var?chars??????????false??????? <br> * @throws Exception ????? */ @Test public void testValidateProhibited05() throws Exception { // ?? // bean : "" Object bean = ""; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); Var var = new Var(); var.setName("chars"); var.setValue("?t"); field.addVar(var); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateProhibited(bean, va, field, errors); // assertFalse(b); // ? assertEquals(1, errors.addErrorCount); // ? ArrayList<?> beanList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "beanList"); assertSame(bean, beanList.get(0)); ArrayList<?> vaList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "vaList"); assertSame(va, vaList.get(0)); ArrayList<?> fieldList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "fieldList"); assertSame(field, fieldList.get(0)); } /** * testValidateProhibited06() <br> * <br> * () <br> * A <br> * <br> * () bean:""<br> * () va:not null<br> * () field:var:<br> * chars=""<br> * () errors:not null<br> * <br> * () boolean:true<br> * () errors:????<br> * <br> * bean?var?chars??????????true??????? <br> * @throws Exception ????? */ @Test public void testValidateProhibited06() throws Exception { // ?? // bean : "" Object bean = ""; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); Var var = new Var(); var.setName("chars"); var.setValue(""); field.addVar(var); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateProhibited(bean, va, field, errors); // assertTrue(b); // ? assertEquals(0, errors.addErrorCount); } /** * testValidateProhibited07() <br> * <br> * () <br> * A <br> * <br> * () bean:" "<br> * () va:not null<br> * () field:var:<br> * chars="?t "<br> * () errors:not null<br> * <br> * () boolean:false<br> * () errors:bean,field,va???addErrors???<br> * <br> * bean?var?chars??????????false??????? <br> * @throws Exception ????? */ @Test public void testValidateProhibited07() throws Exception { // ?? // bean : " " Object bean = " "; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); Var var = new Var(); var.setName("chars"); var.setValue("?t "); field.addVar(var); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateProhibited(bean, va, field, errors); // assertFalse(b); // ? assertEquals(1, errors.addErrorCount); // ? ArrayList<?> beanList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "beanList"); assertSame(bean, beanList.get(0)); ArrayList<?> vaList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "vaList"); assertSame(va, vaList.get(0)); ArrayList<?> fieldList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "fieldList"); assertSame(field, fieldList.get(0)); } /** * testValidateProhibited08() <br> * <br> * () <br> * A <br> * <br> * () bean:" "<br> * () va:not null<br> * () field:var:<br> * chars="?t "<br> * () errors:not null<br> * <br> * () boolean:false<br> * () errors:bean,field,va???addErrors???<br> * <br> * bean?var?chars??????????false??????? <br> * @throws Exception ????? */ @Test public void testValidateProhibited08() throws Exception { // ?? // bean : " " Object bean = " "; // va : not null ValidatorAction va = new ValidatorAction(); // field : not null Field field = new Field(); Var var = new Var(); var.setName("chars"); var.setValue("?t "); field.addVar(var); // errors : not null FieldChecks_ValidationErrorsImpl01 errors = new FieldChecks_ValidationErrorsImpl01(); // boolean b = new FieldChecks().validateProhibited(bean, va, field, errors); // assertFalse(b); // ? assertEquals(1, errors.addErrorCount); // ? ArrayList<?> beanList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "beanList"); assertSame(bean, beanList.get(0)); ArrayList<?> vaList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "vaList"); assertSame(va, vaList.get(0)); ArrayList<?> fieldList = (ArrayList<?>) ReflectionTestUtils.getField(errors, "fieldList"); assertSame(field, fieldList.get(0)); } }