[jdt-dev] Import issues with generics and inner interfaces

[martin.nilsson@xxxxxxxxxxx]

Hello

I'm running into a problem with an API
that I'm developing that deals with generics and inner interfaces. A very
simple example of the problem is the following:

SuperInterface.java:

package
com.test.superint;

public
interface
SuperInterface<G
extends
SuperInterface.SuperInterfaceGetter,
S
extends
SuperInterface.SuperInterfaceSetter>
{
    public
interface
SuperInterfaceGetter
{}

    public
interface
SuperInterfaceSetter
{}
}

SubInterface.java:

package
com.test.subint;

import
com.test.superint.SuperInterface;

public
interface
SubInterface
extends
SuperInterface<SubInterface.SubInterfaceGetter,
SubInterface.SubInterfaceSetter>
{
    public
interface
SubInterfaceGetter
extends
SuperInterfaceGetter
{}

    public
interface
SubInterfaceSetter
extends
SuperInterfaceSetter
{}
}

These two classes compiles without a
problem in eclipse jdt, but fails when compiling using javac or maven with
the following error:

test\subint\SubInterface.java:6: cannot
find symbol
symbol  : class SuperInterfaceGetter
location: interface test.subint.SubInterface
    public interface SubInterfaceGetter
extends SuperInterfaceGetter {}
         
                     
                ^
test\subint\SubInterface.java:8: cannot
find symbol
symbol  : class SuperInterfaceSetter
location: interface test.subint.SubInterface
    public interface SubInterfaceSetter
extends SuperInterfaceSetter {}
         
                     
                ^
test\subint\SubInterface.java:5: type
parameter test.subint.SubInterface.SubInterfaceGetter is not within its
bound
public interface SubInterface extends
SuperInterface<SubInterface.SubInterfaceGetter, SubInterface.SubInterfaceSetter>
{
         
                     
                     
           ^
test\subint\SubInterface.java:5: type
parameter test.subint.SubInterface.SubInterfaceSetter is not within its
bound
public interface SubInterface extends
SuperInterface<SubInterface.SubInterfaceGetter, SubInterface.SubInterfaceSetter>
{
         
                     
                     
                     
                     
^
4 errors

To make it compile outside of eclipse,
I have to add two imports to the interface SubInterface.java:

import
com.test.superint.SuperInterface.SuperInterfaceGetter;
import
com.test.superint.SuperInterface.SuperInterfaceSetter;

But as soon as I do it, eclipse says
these two imports are never used and remove them if the "Remove unused
imports" is enabled

Is there a way to get the jdt compiler
to behave the same way as javac?

Thanks,

Martin

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