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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 6421111
* @ summary NullPointerException thrown when retrieving bounds for the type parameter
* @ author Peter von der Ah \ u00e9
* @ library . . / lib
* @ modules java . compiler
* jdk . compiler
* @ build ToolTester
* @ compile - Xlint : all T6421111 . java
* @ run main T6421111
*/
import java.io.File;
import java.io.IOException;
import java.net.URI;
import java.util.Arrays;
import java.util.Collections;
import java.util.Set;
import javax.annotation.processing.AbstractProcessor;
import javax.annotation.processing.RoundEnvironment;
import javax.annotation.processing.SupportedAnnotationTypes;
import javax.annotation.processing.SupportedSourceVersion;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.TypeElement;
import javax.lang.model.element.TypeParameterElement;
import javax.lang.model.type.DeclaredType;
import javax.lang.model.type.TypeVariable;
import javax.tools.SimpleJavaFileObject;
import static javax.tools.JavaFileObject.Kind.SOURCE;
public class T6421111 extends ToolTester {
void test(String... args) {
class Test1 extends SimpleJavaFileObject {
Test1() {
super (URI.create("myfo:///Test1.java"), SOURCE);
}
@Override
public String getCharContent(boolean ignoreEncodingErrors) {
return "class Test1<T extends Thread & Runnable> {}" ;
}
}
class Test2 extends SimpleJavaFileObject {
Test2() {
super (URI.create("myfo:///Test2.java"), SOURCE);
}
@Override
public String getCharContent(boolean ignoreEncodingErrors) {
return "class Test2<T extends Test2<T> & Runnable> {}" ;
}
}
task = tool.getTask(null , fm, null , Collections.singleton("-Xlint:all" ), null ,
Arrays.asList(new Test1(), new Test2()));
task.setProcessors(Collections.singleton(new MyProcessor()));
if (!task.call())
throw new AssertionError("Annotation processor failed" );
}
@SupportedAnnotationTypes("*" )
static class MyProcessor extends AbstractProcessor {
void test(TypeElement element, boolean fbound) {
TypeParameterElement tpe = element.getTypeParameters().iterator().next();
tpe.getBounds().getClass();
if (fbound) {
DeclaredType type = (DeclaredType)tpe.getBounds().get(0 );
if (type.asElement() != element)
throw error("%s != %s" , type.asElement(), element);
TypeVariable tv = (TypeVariable)type.getTypeArguments().get(0 );
if (tv.asElement() != tpe)
throw error("%s != %s" , tv.asElement(), tpe);
}
}
public boolean process(Set<? extends TypeElement> annotations,
RoundEnvironment roundEnv) {
test(processingEnv.getElementUtils().getTypeElement("Test1" ), false );
test(processingEnv.getElementUtils().getTypeElement("Test2" ), true );
return false ;
}
@Override
public SourceVersion getSupportedSourceVersion() {
return SourceVersion.latest();
}
}
public static void main(String... args) throws IOException {
try (T6421111 t = new T6421111()) {
t.test(args);
}
}
public static AssertionError error(String format, Object... args) {
return new AssertionError(String.format(format, args));
}
}
Messung V0.5 in Prozent C=96 H=94 G=94
¤ Dauer der Verarbeitung: 0.3 Sekunden
¤
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