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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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*
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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,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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*/
/*
* @test
* @bug 6499673
* @library /tools/javac/lib
* @modules jdk.compiler
* @build JavacTestingAbstractProcessor BoundsTest
* @run main BoundsTest
* @summary Assertion check for TypeVariable.getUpperBound() fails
*/
import com.sun.source.util.*;
import javax.annotation.processing.*;
import javax.lang.model.type.*;
import javax.lang.model.util.ElementFilter;
import javax.lang.model.element.*;
import javax.tools.*;
import java.util.*;
import java.io.*;
public class BoundsTest {
private int errors = 0;
private static final String Intersection_name = "IntersectionTest.java";
private static final String Intersection_contents =
"import java.util.List;\n" +
"import java.io.Serializable;\t" +
"public class IntersectionTest<S extends List & Serializable> {\n" +
" void method(S s) { }\n" +
"}";
private static final String[] Intersection_bounds = {
"java.util.List",
"java.io.Serializable"
};
private static final String[] Intersection_supers = {
"java.util.List",
"java.io.Serializable"
};
private static final String Single_name = "SingleTest.java";
private static final String Single_contents =
"import java.util.List;\n" +
"public class SingleTest<S extends List> {\n" +
" void method(S s) { }\n" +
"}";
private static final String[] Single_bounds = {
"java.util.List",
};
private static final String[] Single_supers = {
"java.lang.Object",
"java.util.Collection"
};
private static final String NoBounds_name = "NoBoundsTest.java";
private static final String NoBounds_contents =
"public class NoBoundsTest<S> {\n" +
" void method(S s) { }\n" +
"}";
private static final String[] NoBounds_bounds = {
"java.lang.Object",
};
private static final String[] NoBounds_supers = {};
private HashSet<String> expected_bounds;
private HashSet<String> expected_supers;
private static final File classesdir = new File("intersectionproperties");
private static final JavaCompiler comp =
ToolProvider.getSystemJavaCompiler();
private static final StandardJavaFileManager fm =
comp.getStandardFileManager(null, null, null);
public void runOne(final String Test_name, final String Test_contents,
final String[] Test_bounds, final String[] Test_supers)
throws IOException {
System.err.println("Testing " + Test_name);
expected_bounds = new HashSet<>(Arrays.asList(Test_bounds));
expected_supers = new HashSet<>(Arrays.asList(Test_supers));
final Iterable<? extends JavaFileObject> files =
fm.getJavaFileObjectsFromFiles(Collections.singleton(writeFile(classesdir, Test_name, Test_contents)));
final JavacTask ct =
(JavacTask)comp.getTask(null, fm, null, null, null, files);
ct.setProcessors(Collections.singleton(new TestProcessor()));
if (!ct.call()) {
System.err.println("Compilation unexpectedly failed");
errors++;
}
}
public void run() throws IOException {
try {
runOne(Intersection_name, Intersection_contents,
Intersection_bounds, Intersection_supers);
runOne(Single_name, Single_contents,
Single_bounds, Single_supers);
runOne(NoBounds_name, NoBounds_contents,
NoBounds_bounds, NoBounds_supers);
if (0 != errors)
throw new RuntimeException(errors + " errors occurred");
} finally {
fm.close();
}
}
public static void main(String... args) throws IOException {
new BoundsTest().run();
}
private static File writeFile(File dir, String path, String body)
throws IOException {
File f = new File(dir, path);
f.getParentFile().mkdirs();
try (FileWriter out = new FileWriter(f)) {
out.write(body);
}
return f;
}
private class TestProcessor extends JavacTestingAbstractProcessor {
private Set<? extends Element> rootElements;
public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
rootElements = roundEnv.getRootElements();
if (!rootElements.isEmpty()) {
performCheck();
}
return true;
}
private void performCheck() {
TypeElement typeElement = (TypeElement) rootElements.iterator().next();
ExecutableElement method = ElementFilter.methodsIn(typeElement.getEnclosedElements()).get(0);
TypeVariable typeVariable = (TypeVariable) method.getParameters().get(0).asType();
final TypeMirror upperBound = typeVariable.getUpperBound();
TypeParameterElement typeParameterElement = ((TypeParameterElement) typeVariable.asElement());
final List<? extends TypeMirror> bounds = typeParameterElement.getBounds();
final List<? extends TypeMirror> supers = processingEnv.getTypeUtils().directSupertypes(upperBound);
final HashSet<String> actual_bounds = new HashSet<>();
final HashSet<String> actual_supers = new HashSet<>();
for(TypeMirror ty : bounds) {
actual_bounds.add(((TypeElement)((DeclaredType)ty).asElement()).getQualifiedName().toString());
}
for(TypeMirror ty : supers) {
actual_supers.add(((TypeElement)((DeclaredType)ty).asElement()).getQualifiedName().toString());
}
if (!expected_bounds.equals(actual_bounds)) {
System.err.println("Mismatched expected and actual bounds.");
System.err.println("Expected:");
for(CharSequence tm : expected_bounds)
System.err.println(" " + tm);
System.err.println("Actual:");
for(CharSequence tm : actual_bounds)
System.err.println(" " + tm);
errors++;
}
if (!expected_supers.equals(actual_supers)) {
System.err.println("Mismatched expected and actual supers.");
System.err.println("Expected:");
for(CharSequence tm : expected_supers)
System.err.println(" " + tm);
System.err.println("Actual:");
for(CharSequence tm : actual_supers)
System.err.println(" " + tm);
errors++;
}
}
}
}