jdk

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/*
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 * Copyright (c) 2007, 2016, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/*
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 * @test
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 * @bug 6627364 6627366
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 * @summary Synthesize important classes if they are missing from the (boot)classpath
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 * @modules jdk.compiler
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 */
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import java.io.*;
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import java.util.*;
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public class Main
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{
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    File testSrc = new File(System.getProperty("test.src"));
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    public static void main(String[] args) throws Exception {
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        new Main().run();
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    }
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    public void run() throws Exception {
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        // compile with standard bootclasspath
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        compile(true, "Test.java");
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        // compile with various missing system classes
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        List<String> base_files = Arrays.asList(
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            "Boolean.java",
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            "Byte.java",
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            "Character.java",
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            "Integer.java",
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            "Long.java",
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            "Number.java",
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            "Object.java",
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            "Short.java",
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            "Void.java"
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        );
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        List<String> extra_files = Arrays.asList(
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            "Double.java",
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            "Float.java",
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            "Cloneable.java",
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            "Serializable.java"
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        );
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        List<String> files = new ArrayList<String>();
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        files.addAll(base_files);
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        files.add("Test.java");
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        compile(false, files);
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        for (String f: extra_files) {
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            files = new ArrayList<String>();
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            files.addAll(base_files);
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            files.addAll(extra_files);
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            files.remove(f);
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            files.add("Test.java");
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            compile(false, files);
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        }
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        if (errors > 0)
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            throw new Exception(errors + " errors occurred");
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    }
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    void compile(boolean stdBootClassPath, String... files) {
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        compile(stdBootClassPath, Arrays.asList(files));
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    }
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    void compile(boolean stdBootClassPath, List<String> files) {
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        File empty = new File("empty");
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        empty.mkdirs();
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        // files to compile are in a separate directory from test to avoid
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        // confusing jtreg
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        File src = new File(testSrc, "src");
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        List<String> args = new ArrayList<String>();
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        args.add("-classpath");
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        args.add("empty");
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        if (stdBootClassPath) {
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            args.add("--patch-module");
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            args.add("java.base=" + testSrc.getAbsolutePath());
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        } else {
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            args.add("--system");
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            args.add("none");
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            files.add("module-info.java");
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        }
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        args.add("-d");
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        args.add(".");
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        for (String f: files)
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            args.add(new File(src, f).getPath());
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        System.out.println("Compile: " + args);
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        StringWriter out = new StringWriter();
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        int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()]),
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                                                  new PrintWriter(out));
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        System.out.println(out.toString());
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        System.out.println("result: " + rc);
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        System.out.println();
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        if (rc != 0)
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            errors++;
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    }
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    private int errors;
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}
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