Here you can find the source of getKeyStores()
public static SortedSet<String> getKeyStores()
//package com.java2s; /*// w ww. j a v a2s . com * The contents of this file are subject to the Mozilla Public License * Version 1.1 (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.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the * License for the specific language governing rights and limitations * under the License. * * The Original Code is 'JSignPdf, a free application for PDF signing'. * * The Initial Developer of the Original Code is Josef Cacek. * Portions created by Josef Cacek are Copyright (C) Josef Cacek. All Rights Reserved. * * Contributor(s): Josef Cacek. * * Alternatively, the contents of this file may be used under the terms * of the GNU Lesser General Public License, version 2.1 (the "LGPL License"), in which case the * provisions of LGPL License are applicable instead of those * above. If you wish to allow use of your version of this file only * under the terms of the LGPL License and not to allow others to use * your version of this file under the MPL, indicate your decision by * deleting the provisions above and replace them with the notice and * other provisions required by the LGPL License. If you do not delete * the provisions above, a recipient may use your version of this file * under either the MPL or the LGPL License. */ import java.util.Set; import java.util.SortedSet; import java.util.TreeSet; public class Main { /** * Returns array of supported KeyStores * * @return String array with supported KeyStore implementation names */ public static SortedSet<String> getKeyStores() { final Set<String> tmpKeyStores = java.security.Security.getAlgorithms("KeyStore"); return new TreeSet<String>(tmpKeyStores); } }