langtools/test/tools/javac/api/T6258271.java

/*
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 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * 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).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
 * @test
 * @bug     6258271
 * @summary DiagnosticMessage exposes internal name __input
 * @author  Peter von der Ah\u00e9
 */

import java.io.*;
import java.util.Arrays;
import javax.tools.*;

public class T6258271 {
    public static void main(String... args) {
        JavaCompiler javac = ToolProvider.getSystemJavaCompiler();
        DiagnosticListener<JavaFileObject> dl =  new DiagnosticListener<JavaFileObject>() {
                public void report(Diagnostic<? extends JavaFileObject> message) {
                    JavaFileObject fo = message.getSource();
                    if ("__input".equals(fo.toUri().getPath()))
                        throw new AssertionError(fo);
                    System.out.println(message);
                }
            };
        StandardJavaFileManager fm = javac.getStandardFileManager(dl, null, null);
        Iterable<? extends JavaFileObject> files =
            fm.getJavaFileObjectsFromStrings(Arrays.asList("nofile.java"));
        javac.getTask(null, fm, dl, null, null, files).call();
    }
}