Here you can find the source of isSymlinkJava7(@Nonnull File file)
@SuppressWarnings("NP_BOOLEAN_RETURN_NULL") private static Boolean isSymlinkJava7(@Nonnull File file) throws IOException
//package com.java2s; /*//w w w. j a va 2s . c o m * The MIT License * * Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ import java.io.*; import javax.annotation.Nonnull; public class Main { @SuppressWarnings("NP_BOOLEAN_RETURN_NULL") private static Boolean isSymlinkJava7(@Nonnull File file) throws IOException { try { Object path = File.class.getMethod("toPath").invoke(file); return (Boolean) Class.forName("java.nio.file.Files") .getMethod("isSymbolicLink", Class.forName("java.nio.file.Path")).invoke(null, path); } catch (NoSuchMethodException x) { return null; // fine, Java 6 } catch (Exception x) { throw (IOException) new IOException(x.toString()).initCause(x); } } }