Here you can find the source of parseDate(@Nullable String value)
@CheckForNull public static Date parseDate(@Nullable String value)
//package com.java2s; /*//from ww w . j a va2 s .c o m * SonarQube PDF Report * Copyright (C) 2010-2016 SonarSource SA * mailto:contact AT sonarsource DOT com * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 3 of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import javax.annotation.CheckForNull; import javax.annotation.Nullable; public class Main { @CheckForNull public static Date parseDate(@Nullable String value) { return parseDate(value, "yyyy-MM-dd"); } @CheckForNull private static Date parseDate(@Nullable String value, String format) { if (value != null) { try { SimpleDateFormat dateFormat = new SimpleDateFormat(format); return dateFormat.parse(value); } catch (ParseException e) { throw new IllegalArgumentException("Fail to parse date '" + value + "': " + format, e); } } return null; } }