--- a/jdk/src/java.base/share/classes/jdk/internal/jrtfs/SystemImages.java Fri Apr 15 10:14:57 2016 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,106 +0,0 @@
-/*
- * Copyright (c) 2014, 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. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * 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.
- */
-package jdk.internal.jrtfs;
-
-import java.net.URISyntaxException;
-import java.net.URL;
-import java.nio.file.Files;
-import java.nio.file.FileSystem;
-import java.nio.file.FileSystems;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.security.AccessController;
-import java.security.CodeSource;
-import java.security.PrivilegedAction;
-
-/**
- * @implNote This class needs to maintain JDK 8 source compatibility.
- *
- * It is used internally in the JDK to implement jimage/jrtfs access,
- * but also compiled and delivered as part of the jrtfs.jar to support access
- * to the jimage file provided by the shipped JDK by tools running on JDK 8.
- */
-final class SystemImages {
- private SystemImages() {}
-
-
- static final String RUNTIME_HOME;
- // "modules" jimage file Path
- private static final Path moduleImageFile;
- // "modules" jimage exists or not?
- private static final boolean modulesImageExists;
- // <JAVA_HOME>/modules directory Path
- private static final Path explodedModulesDir;
-
- static {
- PrivilegedAction<String> pa = SystemImages::findHome;
- RUNTIME_HOME = AccessController.doPrivileged(pa);
-
- FileSystem fs = FileSystems.getDefault();
- moduleImageFile = fs.getPath(RUNTIME_HOME, "lib", "modules");
- explodedModulesDir = fs.getPath(RUNTIME_HOME, "modules");
-
- modulesImageExists = AccessController.doPrivileged(
- new PrivilegedAction<Boolean>() {
- @Override
- public Boolean run() {
- return Files.isRegularFile(moduleImageFile);
- }
- });
- }
-
- static boolean hasModulesImage() {
- return modulesImageExists;
- }
-
- static Path moduleImageFile() {
- return moduleImageFile;
- }
-
- static Path explodedModulesDir() {
- return explodedModulesDir;
- }
-
- /**
- * Returns the appropriate JDK home for this usage of the FileSystemProvider.
- * When the CodeSource is null (null loader) then jrt:/ is the current runtime,
- * otherwise the JDK home is located relative to jrt-fs.jar.
- */
- private static String findHome() {
- CodeSource cs = SystemImages.class.getProtectionDomain().getCodeSource();
- if (cs == null)
- return System.getProperty("java.home");
-
- // assume loaded from $TARGETJDK/jrt-fs.jar
- URL url = cs.getLocation();
- if (!url.getProtocol().equalsIgnoreCase("file"))
- throw new RuntimeException(url + " loaded in unexpected way");
- try {
- return Paths.get(url.toURI()).getParent().toString();
- } catch (URISyntaxException e) {
- throw new InternalError(e);
- }
- }
-}