presto-spi/src/main/java/io/prestosql/spi/connector/SchemaNotFoundException.java/SchemaNotFoundException/SchemaNotFoundException
class SchemaNotFoundException:    public SchemaNotFoundException(String schemaName, String message, Throwable cause)
    {
        super(message, cause);
        this.schemaName = requireNonNull(schemaName, "schemaName is null");
    }