FlagsTooEarly.java

/*
 * Copyright (c) 2003, 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
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 * questions.
 */

/*
 * @test
 * @bug 4904495
 * @summary Compilation may go awry if we ask a symbol for its flags during
 *          javac's Enter phase, before the flags are generally available.
 * @modules jdk.javadoc/jdk.javadoc.internal.tool
 */


import java.util.Collections;
import java.util.Locale;
import java.util.Set;

import javax.lang.model.SourceVersion;

import jdk.javadoc.doclet.Doclet;
import jdk.javadoc.doclet.Reporter;
import jdk.javadoc.doclet.DocletEnvironment;

public class FlagsTooEarly implements Doclet {

    public static void main(String[] args) {
        String thisFile = "" +
            new java.io.File(System.getProperty("test.src", "."),
                             "FlagsTooEarly.java");

        String[] argarray = {
            "-docletpath", System.getProperty("test.classes", "."),
            "-doclet", "FlagsTooEarly",
            "-Xwerror",
            thisFile
        };
        if (jdk.javadoc.internal.tool.Main.execute(argarray) != 0)
            throw new Error("Javadoc encountered warnings or errors.");
    }

    /*
     * The world's simplest doclet.
     */
    public boolean run(DocletEnvironment root) {
        return true;
    }

    /*
     * The following sets up the scenario for triggering the (potential) bug.
     */
    C2 c;
    static class C1 { }
    static class C2 { }

    @Override
    public String getName() {
        return "Test";
    }

    @Override
    public Set<Option> getSupportedOptions() {
        return Collections.emptySet();
    }

    @Override
    public SourceVersion getSupportedSourceVersion() {
        return SourceVersion.latest();
    }

    public void init(Locale locale, Reporter reporter) {
        return;
    }
}