src/main/java/com/conveyal/gtfs/error/NewGTFSError.java
public NewGTFSError setSequence(String sequenceAsString) {
        try {
            // Parse int from string value found during load stage.
            this.entitySequenceNumber = Integer.parseInt(sequenceAsString);
        } catch (NumberFormatException e) {
            e.printStackTrace();
            this.entitySequenceNumber = null;
        }
        return this;
    }
public NewGTFSError setSequence(String sequenceAsString) {
        try {
            // Parse int from string value found during load stage.
            this.entitySequenceNumber = Integer.parseInt(sequenceAsString);
        } catch (NumberFormatException e) {
            e.printStackTrace();
            this.entitySequenceNumber = null;
        }
        return this;
    }
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