Projection.getEPSGCode() always returns 0

[securedimensions]

What is the method to get the integer code for a CRS identified by name?

The method getESPGCode() has hardcodes return 0:

    /**
     * Returns the ESPG code for this projection, or 0 if unknown.
     */
    public int getEPSGCode() {
        return 0;
    }

[lines 750-755 of file òrg.locationtech.proj4j.proj.Projection']

[pomadchin]

It is an a way to define default methods here. Usually it is overloaded in some child class, for example like it is done in a WebMercator class.

[echeipesh]

To clarify these issue further, this would not the the CRS EPSG but rather the EPSG code of the Projection or OperationMethod in EPSG parlance.

For instance EqualAreaAzimuthalProjection.java would be EPSG::9820

I think the only way to really handle address this issue to manually review the list of projections offered here and update the method override. Although I have to say that at least in my use case I have never had to consider the Projection EPSG code as separate from CRS EPSG code.