### Question:
AbstractDriverProductWriterPlugIn implements ProductWriterPlugIn { @Override public final SnapFileFilter getProductFileFilter() { return null; } protected  AbstractDriverProductWriterPlugIn(String fileExtension, String driverName, String driverDisplayName, String creationDataTypes); @Override final String getDescription(Locale locale); @Override final String[] getFormatNames(); @Override final String[] getDefaultFileExtensions(); @Override final SnapFileFilter getProductFileFilter(); @Override final EncodeQualification getEncodeQualification(Product product); @Override final Class[] getOutputTypes(); @Override final ProductWriter createWriterInstance(); final GDALDriverInfo getWriterDriver();  }### Answer:
@Test public void testProductFileFilter() { if (GDALInstallInfo.INSTANCE.isPresent()) { SnapFileFilter snapFileFilter = this.writerPlugIn.getProductFileFilter(); assertNull(snapFileFilter); } }