Override method with different signature

Question

I have a superclass with the method:

protected <E extends Enum<E>,T extends VO> void processarRelatorioComEstado(Date dataInicial, Date dataFinal, E estado) throws RelatorioException {

    throw new UnsupportedOperationException("method not overridden");
}

and in one of its subclasses I want to do the following:

    @Override
protected <E extends Enum<E>> DemonstrativoReceitaDespesasAnexo12Vo processarRelatorioComEstado(Date dataInicial, Date dataFinal, E estado) throws RelatorioException {
//do something
return DemonstrativoReceitaDespesasAnexo12Vo;
}

but this just doesn't work. The problem is that I have a reference to a superclass, and I want to call this method, but only in one of the subclasses.

Answer 1

According to java overridding

The overriding method has the same name, number and type of parameters, and return type as the method it overrides. An overriding method can also return a subtype of the type returned by the overridden method. This is called a covariant return type.

Here your method return type is different so it is not overridding.