| /* |
| * Copyright (c) 2015, 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 build.tools.symbolgenerator; |
| |
| import com.sun.source.util.JavacTask; |
| import com.sun.tools.javac.api.JavacTool; |
| import com.sun.tools.javac.util.Context; |
| import java.io.BufferedInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.nio.charset.Charset; |
| import java.util.Arrays; |
| import java.util.EnumSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import javax.tools.JavaFileManager; |
| import javax.tools.JavaFileManager.Location; |
| import javax.tools.JavaFileObject; |
| import javax.tools.JavaFileObject.Kind; |
| import javax.tools.StandardLocation; |
| |
| /**A tool to dump the content of the default javac's bootclasspath. This tool should not use any |
| * features not available on the oldest supported target JDK, or not available in the boot JDK. |
| * |
| * For more information on use of this site, please see CreateSymbols. |
| */ |
| public class ProbeModular { |
| |
| public static void main(String... args) throws IOException { |
| if (args.length != 1) { |
| System.err.println("Not enough arguments."); |
| System.err.println("Usage:"); |
| System.err.println(" java " + |
| ProbeModular.class.getName() + |
| " <output-file>"); |
| return ; |
| } |
| |
| File outFile = new File(args[0]); |
| Charset cs = Charset.forName("UTF-8"); |
| JavacTool tool = JavacTool.create(); |
| Context ctx = new Context(); |
| String version = System.getProperty("java.specification.version"); |
| JavacTask task = tool.getTask(null, null, null, |
| Arrays.asList("--release", version), |
| null, null, ctx); |
| task.getElements().getTypeElement("java.lang.Object"); |
| JavaFileManager fm = ctx.get(JavaFileManager.class); |
| |
| try (OutputStream out = new FileOutputStream(outFile)) { |
| for (Location modLoc : LOCATIONS) { |
| for (Set<JavaFileManager.Location> module : |
| fm.listLocationsForModules(modLoc)) { |
| for (JavaFileManager.Location loc : module) { |
| Iterable<JavaFileObject> files = |
| fm.list(loc, |
| "", |
| EnumSet.of(Kind.CLASS), |
| true); |
| |
| for (JavaFileObject jfo : files) { |
| try (InputStream is = jfo.openInputStream(); |
| InputStream in = |
| new BufferedInputStream(is)) { |
| ByteArrayOutputStream baos = |
| new ByteArrayOutputStream(); |
| StringBuilder textual = new StringBuilder(); |
| int read; |
| |
| while ((read = in.read()) != (-1)) { |
| baos.write(read); |
| String hex = String.format("%02x", read); |
| textual.append(hex); |
| } |
| |
| textual.append("\n"); |
| out.write(textual.toString().getBytes(cs)); |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| //where: |
| private static final List<StandardLocation> LOCATIONS = |
| Arrays.asList(StandardLocation.SYSTEM_MODULES, |
| StandardLocation.UPGRADE_MODULE_PATH); |
| |
| } |