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Posted to dev@aries.apache.org by "Nicolas Dutertry (JIRA)" <ji...@apache.org> on 2018/10/18 08:48:00 UTC
[jira] [Created] (ARIES-1849) Aries proxy does not work with
interface default methods
Nicolas Dutertry created ARIES-1849:
---------------------------------------
Summary: Aries proxy does not work with interface default methods
Key: ARIES-1849
URL: https://issues.apache.org/jira/browse/ARIES-1849
Project: Aries
Issue Type: Bug
Components: Proxy
Affects Versions: proxy-impl-1.1.2
Reporter: Nicolas Dutertry
Since Java 8 it is possible to define default implementations inside interface definition.
It seems that Aries proxy is not compatible with interface default methods. As a result it is not possible to use a blueprint reference to a service implementing an interface with default method.
The following unit test demonstrate the issue :
{code:java}
import java.util.Collections;
import org.apache.aries.proxy.UnableToProxyException;
import org.apache.aries.proxy.impl.interfaces.InterfaceProxyGenerator;
import org.junit.Assert;
import org.junit.Test;
public class InterfaceProxyGeneratorTest {
public static interface Service {
String getName();
default String getValue() {
return "default";
}
}
public static class ServiceImpl implements Service {
@Override
public String getName() {
return "serviceimpl";
}
@Override
public String getValue() {
return "value";
}
}
@Test
public void testProxy() throws UnableToProxyException {
ServiceImpl serviceImpl = new ServiceImpl();
Assert.assertEquals("serviceimpl", serviceImpl.getName());
Assert.assertEquals("value", serviceImpl.getValue());
Service proxy = (Service)InterfaceProxyGenerator.getProxyInstance(
null, null, Collections.singleton(Service.class),
() -> {
return serviceImpl;
},
null);
Assert.assertNotNull(proxy);
Assert.assertEquals("serviceimpl", proxy.getName());
Assert.assertEquals("value", proxy.getValue());
}
}{code}
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