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src/java.base/share/classes/jdk/internal/module/ModulePatcher.java

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rev 51958 : 8211122: Reduce the number of internal classes made accessible to jdk.unsupported
Reviewed-by: alanb, dfuchs, kvn
   1 /*
   2  * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


  38 import java.net.URI;
  39 import java.net.URL;
  40 import java.nio.ByteBuffer;
  41 import java.nio.file.Files;
  42 import java.nio.file.Path;
  43 import java.nio.file.Paths;
  44 import java.util.ArrayList;
  45 import java.util.Collections;
  46 import java.util.HashMap;
  47 import java.util.HashSet;
  48 import java.util.List;
  49 import java.util.Map;
  50 import java.util.Optional;
  51 import java.util.Set;
  52 import java.util.jar.JarEntry;
  53 import java.util.jar.JarFile;
  54 import java.util.stream.Collectors;
  55 import java.util.stream.Stream;
  56 
  57 import jdk.internal.loader.Resource;
  58 import jdk.internal.misc.JavaLangModuleAccess;
  59 import jdk.internal.misc.SharedSecrets;
  60 import sun.net.www.ParseUtil;
  61 
  62 
  63 /**
  64  * Provides support for patching modules, mostly the boot layer.
  65  */
  66 
  67 public final class ModulePatcher {
  68 
  69     private static final JavaLangModuleAccess JLMA
  70         = SharedSecrets.getJavaLangModuleAccess();
  71 
  72     // module name -> sequence of patches (directories or JAR files)
  73     private final Map<String, List<Path>> map;
  74 
  75     /**
  76      * Initialize the module patcher with the given map. The map key is
  77      * the module name, the value is a list of path strings.
  78      */
  79     public ModulePatcher(Map<String, List<String>> input) {


   1 /*
   2  * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


  38 import java.net.URI;
  39 import java.net.URL;
  40 import java.nio.ByteBuffer;
  41 import java.nio.file.Files;
  42 import java.nio.file.Path;
  43 import java.nio.file.Paths;
  44 import java.util.ArrayList;
  45 import java.util.Collections;
  46 import java.util.HashMap;
  47 import java.util.HashSet;
  48 import java.util.List;
  49 import java.util.Map;
  50 import java.util.Optional;
  51 import java.util.Set;
  52 import java.util.jar.JarEntry;
  53 import java.util.jar.JarFile;
  54 import java.util.stream.Collectors;
  55 import java.util.stream.Stream;
  56 
  57 import jdk.internal.loader.Resource;
  58 import jdk.internal.access.JavaLangModuleAccess;
  59 import jdk.internal.access.SharedSecrets;
  60 import sun.net.www.ParseUtil;
  61 
  62 
  63 /**
  64  * Provides support for patching modules, mostly the boot layer.
  65  */
  66 
  67 public final class ModulePatcher {
  68 
  69     private static final JavaLangModuleAccess JLMA
  70         = SharedSecrets.getJavaLangModuleAccess();
  71 
  72     // module name -> sequence of patches (directories or JAR files)
  73     private final Map<String, List<Path>> map;
  74 
  75     /**
  76      * Initialize the module patcher with the given map. The map key is
  77      * the module name, the value is a list of path strings.
  78      */
  79     public ModulePatcher(Map<String, List<String>> input) {


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