theonedev/onedev · error · ConversionException

Invalid number: ${token}

Error message

Invalid number: ${token}

What it means

NumberListEditor converts user-entered text into a list of numbers by splitting input into tokens and parsing each with Long.valueOf or Integer.valueOf depending on the element class. If a token is not a valid number, NumberFormatException is caught and rethrown as a Wicket ConversionException with the offending token. This gives per-token feedback for numeric list inputs.

Source

Thrown at server-core/src/main/java/io/onedev/server/web/editable/numberlist/NumberListEditor.java:72

		});

		input.add(newPlaceholderModifier());
	}

	@Override
	protected List<Number> convertInputToValue() throws ConversionException {
		List<Number> numbers = new ArrayList<>();
		String text = input.getConvertedInput();
		if (StringUtils.isNotBlank(text)) {
			for (String token : StringUtils.splitAndTrim(text, " ")) {
				try {
					if (elementClass == Long.class)
						numbers.add(Long.valueOf(token));
					else
						numbers.add(Integer.valueOf(token));
				} catch (NumberFormatException e) {
					throw new ConversionException("Invalid number: " + token);
				}
			}
		}
		return numbers;
	}

	@Override
	public boolean needExplicitSubmit() {
		return true;
	}

}

View on GitHub (pinned to d44925c47c)

Solutions

1. Correct the input so each comma/space separated token is a whole number (e.g. 1, 2, 3).
2. Remove decimal points, thousands separators, currency symbols, and empty entries (double commas/trailing commas).
3. If the values genuinely need decimals, the field's element type is wrong — use a property type supporting floats rather than List<Long>/List<Integer>.
4. Check for invisible characters when pasting (non-breaking spaces) and retype the value.

Example fix

// before (input)
1, 2.5, 3
// after (input)
1, 2, 3

// client-side pre-check before submitting a number list field
function isValidNumberList(text) {
    return text.split(/[,\s]+/).filter(t => t.length > 0)
               .every(t => /^-?\d+$/.test(t));
}

boolean isValidNumberToken(String token) {
    return token != null && token.matches("-?\\d+");
}

try {
    List<Long> numbers = (List<Long>) editor.getConvertedInput();
} catch (ConversionException e) {
    error("Each entry must be a whole number; offending value: " + e.getMessage());
}

When it happens

Trigger: A user types a non-numeric token (e.g. 'abc', '1.5' for Integer/Long, '1,000' with thousands separator, or an empty fragment from stray commas/spaces) into a field edited by NumberListEditor and the form converts input.

Common situations: Entering decimal numbers into an integer list field; pasting lists with stray separators or trailing commas; locale-formatted numbers like '1 000' or '1,5'; leaving double commas producing empty tokens.

Related errors

• Invalid issue number: {0}
• Invalid pack ID: {0}
• Invalid pull request number: {0}
• Invalid float value
• Invalid integer value

AI-assisted analysis of theonedev/onedev@d44925c47c (2026-09-06). Data as JSON: /api/errors/618d01c150e3840c. Report an issue: GitHub.