You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@aries.apache.org by "Robert Varga (JIRA)" <ji...@apache.org> on 2019/03/01 11:10:00 UTC

[jira] [Commented] (ARIES-1849) Aries proxy does not work with interface default methods

    [ https://issues.apache.org/jira/browse/ARIES-1849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16781580#comment-16781580 ] 

Robert Varga commented on ARIES-1849:
-------------------------------------

[~jbonofre] would it be possible to include this upgrade in karaf-4.1.8?

> 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
>            Assignee: Jean-Baptiste Onofré
>            Priority: Major
>             Fix For: proxy-impl-1.1.4
>
>
> 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 demonstrates 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}



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)