apache/maven · error · RuntimeException

Unexpected tokens after end of expression

Error message

Unexpected tokens after end of expression

What it means

Error "Unexpected tokens after end of expression" thrown in apache/maven.

Source

Thrown at impl/maven-impl/src/main/java/org/apache/maven/impl/model/profile/ConditionParser.java:191

        }

        if (!sb.isEmpty()) {
            tokens.add(sb.toString());
        }

        return tokens;
    }

    /**
     * Parses the next expression from the list of tokens.
     *
     * @return the parsed expression as an object
     * @throws RuntimeException if there are unexpected tokens after the end of the expression
     */
    private Object parseExpression() {
        Object result = parseLogicalOr();
        if (current < tokens.size()) {
            throw new RuntimeException("Unexpected tokens after end of expression");
        }
        return result;
    }

    /**
     * Parses logical OR operations.
     *
     * @return the result of parsing logical OR operations
     */
    private Object parseLogicalOr() {
        Object left = parseLogicalAnd();
        while (current < tokens.size() && tokens.get(current).equals("||")) {
            current++;
            Object right = parseLogicalAnd();
            left = (boolean) left || (boolean) right;
        }
        return left;
    }

View on GitHub (pinned to e4093d4e12)

When it happens

Trigger: Thrown at impl/maven-impl/src/main/java/org/apache/maven/impl/model/profile/ConditionParser.java:191 when the library encounters an invalid state.

Common situations: See trigger scenarios.

Understand the failure class

• Parsing and encoding errors: unexpected token, malformed input — why parsers reject input and how to find the real culprit.

AI-assisted analysis of apache/maven@e4093d4e12 (2026-08-21). Data as JSON: /api/errors/3bb1a2d2b0f4517a. Report an issue: GitHub.