T6420409.java

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/*
 * @test
 * @bug     6420409
 * @summary JSR 199: StandardFileManager: cannot set CLASS_PATH location
 * @author  Peter von der Ah\u00e9
 * @modules java.compiler
 *          jdk.compiler
 */

import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Locale;
import javax.tools.JavaFileManager.Location;
import javax.tools.*;

import static javax.tools.StandardLocation.CLASS_PATH;
import static javax.tools.StandardLocation.SOURCE_PATH;
import static javax.tools.StandardLocation.CLASS_OUTPUT;

public class T6420409 {
    static final File test_src     = new File(System.getProperty("test.src"));
    static final File test_classes = new File(System.getProperty("test.classes"));

    public static void main(String... args) throws IOException {
        final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
        try (StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null)) {
            fm.setLocation(SOURCE_PATH,  Arrays.asList(test_classes)); // switcheroo !!!
            fm.setLocation(CLASS_PATH,   Arrays.asList(test_src));
            fm.setLocation(CLASS_OUTPUT, Arrays.asList(test_classes));
            final Iterable<? extends JavaFileObject> compilationUnits =
                fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(test_src, "T6420409.java")));
            tool.getTask(null,
                         fm,
                         null,
                         Arrays.asList("-proc:none"),
                         null,
                         compilationUnits).call();
            test(fm.getLocation(CLASS_PATH),   test_src,     CLASS_PATH);
            test(fm.getLocation(SOURCE_PATH),  test_classes, SOURCE_PATH);
            test(fm.getLocation(CLASS_OUTPUT), test_classes, CLASS_OUTPUT);
        }
    }

    static void test(Iterable<? extends File> path, File file, Location location) {
        Iterator<? extends File> it = path.iterator();
        if (!it.next().equals(file))
            throw new AssertionError(file + " not in " + location);
        if (it.hasNext())
            throw new AssertionError("Unexpected element in "  + location + " : " + it.next());
        System.err.format((Locale)null, "OK: %s: %s%n", location, path);
    }
}