--- old/src/java.base/share/classes/sun/net/www/protocol/jar/JarURLConnection.java Fri Sep 9 19:21:55 2016 +++ new/src/java.base/share/classes/sun/net/www/protocol/jar/JarURLConnection.java Fri Sep 9 19:21:55 2016 @@ -125,7 +125,9 @@ * to get the jarFile, and set it as our permission. */ if (getUseCaches()) { + boolean oldUseCaches = jarFileURLConnection.getUseCaches(); jarFileURLConnection = factory.getConnection(jarFile); + jarFileURLConnection.setUseCaches(oldUseCaches); } if ((entryName != null)) { --- /dev/null Fri Sep 9 19:21:56 2016 +++ new/test/sun/net/www/protocol/jar/JarURLConnectionUseCaches.java Fri Sep 9 19:21:56 2016 @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code 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 General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/* + * @test + * @bug 6947916 + * @summary JarURLConnection does not handle useCaches correctly + * @run main JarURLConnectionUseCaches + */ + +import java.io.*; +import java.net.JarURLConnection; +import java.net.URL; +import java.util.jar.*; + +public class JarURLConnectionUseCaches { + public static void main( String[] args ) throws IOException { + JarOutputStream out = new JarOutputStream( + new FileOutputStream("usecache.jar")); + out.putNextEntry(new JarEntry("test.txt")); + out.write("Test txt file".getBytes()); + out.closeEntry(); + out.close(); + + URL url = new URL("jar:" + + new File(".").toURI().toString() + + "/usecache.jar!/test.txt"); + + JarURLConnection c1 = (JarURLConnection)url.openConnection(); + c1.setDefaultUseCaches( false ); + c1.setUseCaches( true ); + c1.connect(); + + JarURLConnection c2 = (JarURLConnection)url.openConnection(); + c2.setDefaultUseCaches( false ); + c2.setUseCaches( true ); + c2.connect(); + + c1.getInputStream().close(); + c2.getInputStream().read(); + c2.getInputStream().close(); + } +}