问在推断泛型时，Javac编译目标1.7与Eclipse编译JDK1.7不同

EN

public interface Info { //... }

public interface RealInfo extends Info { //... }

public abstract class AbstractManager<I extends Info>
{
    public I info;
    public I getInfo()
    {
        return this.info;
    }
}

public interface Manager
{
    public <I extends Info> I getInfo();
}

public class DefaultManager extends AbstractManager<RealInfo> implements Manager
{
    //...
}

DefaultManager.java:16: error: DefaultManager is not abstract and does not override abstract method <I>getInfo() in Manager
public class DefaultManager extends AbstractManager<RealInfo> implements Manager
                                                       ^
  where I is a type-variable:
    I extends Info declared in method <I>getInfo()