8042785: javac, bridge methods are not getting the flags from the original method
Reviewed-by: jjg, jlahoda
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/*
* @test
* @bug 8042785
* @summary javac, bridge methods are not getting the flags from the original method
* @run main FlagsNotCopiedToBridgeMethodTest
*/
import java.io.BufferedInputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import com.sun.tools.classfile.AccessFlags;
import com.sun.tools.classfile.ClassFile;
import com.sun.tools.classfile.Method;
import com.sun.tools.javac.util.Assert;
public class FlagsNotCopiedToBridgeMethodTest {
public static void main(String[] args) throws Exception {
new FlagsNotCopiedToBridgeMethodTest().run();
}
void run() throws Exception {
checkClassFile(Paths.get(System.getProperty("test.classes"),
this.getClass().getSimpleName() + "$CovariantReturnType.class"));
checkClassFile(Paths.get(System.getProperty("test.classes"),
this.getClass().getSimpleName() +
"$CovariantReturnType$VisibilityChange.class"));
}
void checkClassFile(final Path cfilePath) throws Exception {
ClassFile classFile = ClassFile.read(
new BufferedInputStream(Files.newInputStream(cfilePath)));
for (Method method : classFile.methods) {
if (method.access_flags.is(AccessFlags.ACC_BRIDGE)) {
Assert.check(method.access_flags.is(AccessFlags.ACC_FINAL | AccessFlags.ACC_STRICT),
"bridge method has incorrect flags");
}
}
}
abstract class T<A,B> {
B m(A a){ return null; }
}
class CovariantReturnType extends T<Integer, Integer> {
strictfp final Integer m(Integer i) {
return i;
}
public class VisibilityChange extends CovariantReturnType {}
}
}