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*
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* version 2 for more details (a copy is included in the LICENSE file that
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*
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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 6557966
* @library /tools/javac/lib
* @modules jdk.compiler/com.sun.tools.javac.util
* @build JavacTestingAbstractProcessor IntersectionPropertiesTest
* @run main IntersectionPropertiesTest
* @summary Assertion check for TypeVariable.getUpperBound() fails
*/
import com.sun.source.util.*;
import com.sun.tools.javac.util.Assert;
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.*;
import javax.lang.model.util.Types;
public class IntersectionPropertiesTest {
private int errors = 0;
private static final String Intersection_name = "IntersectionTest.java";
private static final String Intersection_contents =
"import java.util.AbstractList;\n" +
"import java.util.List;\n" +
"import java.io.Serializable;\t" +
"public class IntersectionTest<S extends List & Serializable, One extends AbstractList & Runnable & Serializable, Two extends AbstractList & Serializable & Runnable> {\n" +
" void method(S s, One o, Two t) { }\n" +
" public static abstract class SubType extends AbstractList implements Runnable, Serializable { } \n" +
"}";
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)
throws IOException {
System.err.println("Testing " + Test_name);
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);
if (0 != errors)
throw new RuntimeException(errors + " errors occurred");
} finally {
fm.close();
}
}
public static void main(String... args) throws IOException {
new IntersectionPropertiesTest().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();
Types types = processingEnv.getTypeUtils();
final HashSet<TypeMirror> actual = new HashSet<TypeMirror>(types.directSupertypes(upperBound));
final HashSet<TypeMirror> expected = new HashSet<TypeMirror>(bounds);
if (!expected.equals(actual)) {
System.err.println("Mismatched expected and actual bounds.");
System.err.println("Expected:");
for(TypeMirror tm : expected)
System.err.println(" " + tm);
System.err.println("Actual:");
for(TypeMirror tm : actual)
System.err.println(" " + tm);
errors++;
}
TypeVariable oneTypeVariable = (TypeVariable) method.getParameters().get(1).asType();
TypeMirror oneUpperBound = oneTypeVariable.getUpperBound();
TypeVariable twoTypeVariable = (TypeVariable) method.getParameters().get(2).asType();
TypeMirror twoUpperBound = twoTypeVariable.getUpperBound();
TypeElement oneUpperBoundElement = (TypeElement) types.asElement(oneUpperBound);
Assert.checkNonNull(oneUpperBoundElement);
Assert.check("java.util.AbstractList".equals(oneUpperBoundElement.getSuperclass().toString()),
oneUpperBoundElement.getSuperclass().toString());
List<String> superInterfaces = new java.util.ArrayList<>();
for (TypeMirror tm : oneUpperBoundElement.getInterfaces()) {
superInterfaces.add(tm.toString());
}
Assert.check(java.util.Arrays.asList("java.lang.Runnable",
"java.io.Serializable").equals(superInterfaces),
superInterfaces);
Assert.check(types.isSameType(upperBound, types.capture(upperBound)));
Assert.check(types.isSameType(types.erasure(typeVariable), types.erasure(upperBound)));
TypeElement subTypeClass = processingEnv.getElementUtils().getTypeElement("IntersectionTest.SubType");
Assert.checkNonNull(subTypeClass);
Assert.check(types.isAssignable(subTypeClass.asType(), oneUpperBound));
Assert.check(types.isSameType(oneUpperBound, twoUpperBound));
Assert.check(!types.isSameType(upperBound, twoUpperBound));
Assert.check(types.isSubtype(subTypeClass.asType(), oneUpperBound));
Assert.check(types.isSubtype(oneUpperBound, upperBound));
}
}
}