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GeoPackage data column constraint enums with string keys are not supported

Description

This bug causes GeoServer to crash whenever a layer is loaded from a GeoPackage that has data column constraints enums mapped by string keys.

The problem lies in how GeoTools manages the data columns constraint values in case of a enum:

if (dataColumn.getConstraint() instanceof DataColumnConstraint.Enum) { DataColumnConstraint.Enum dcc = (DataColumnConstraint.Enum) dataColumn.getConstraint(); EnumMapper mapper = new EnumMapper(); for (Map.Entry<String, String> entry : dcc.getValues().entrySet()) { mapper.addMapping(Integer.valueOf(entry.getKey()), entry.getValue()); } if (dataColumn.getMimeType() == null) { att.getUserData().put(JDBCDataStore.JDBC_ENUM_MAP, mapper); } else { att.getUserData().put(GPKG_ARRAY_ENUM_MAP, mapper); } }

While the data column entrySet could have a string key for the mapping, the created EnumMapper cannot, since the key type is Integer, hence an exception is thrown, preventing the GeoPackage to be loaded.

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Created February 6, 2025 at 10:58 AM
Updated February 6, 2025 at 10:58 AM