@CXXSuperTemplate doens't work if the super class is placed in another file

[sighingnow]

For class

@FFITypeAlias("arrow::Result")
@FFIGen(templates = @CXXTemplate(cxx = "int", java = "Integer"))
@CXXSuperTemplate(
        type = "arrow.EqualityComparable",
        template = @CXXTemplate(java = "arrow.Result<T>", cxx = "arrow::Result<T>")
)
@CXXHead(
        system = "arrow/result.h"
)
public interface Result<T> extends EqualityComparable<Result<T>>, CXXPointer {
}

and class

@FFITypeAlias("arrow::util::EqualityComparable")
@FFIGen
@CXXHead(
        system = "arrow/util/compare.h"
)
public interface EqualityComparable<T> extends CXXPointer
{
}

The CXXSuperTemplate doesn't work if they are placed in different java files, but works if been placed in the the file.