What causes "Missing ' ' claim. Expected value: " in jwtk/jjwt?

Fix the token producer to include the required claim.

jwtk/jjwt · error · MissingClaimException

Missing ' ' claim. Expected value

Error message

Missing '<expectedClaimName>' claim. Expected value: <expectedClaimValue>

What it means

Thrown as MissingClaimException when a required claim configured via parser.require(claimName, expectedValue) is entirely absent from the parsed JWT's claims set. JJWT only checks this during parse when claim requirements were registered on the builder.

Solutions

Fix the token producer to include the required claim.
Remove or correct the require(...) call if the claim is genuinely optional.
Check the claim name spelling against what the issuer actually emits (decode the payload to verify).
Coordinate claim requirements across services; version the token schema if producers and consumers deploy independently.

Example fix

// before
Jwts.parser().require("tenant", "acme").verifyWith(key).build().parse(jwt); // token lacks 'tenant'
// after
// producer:
String jwt = Jwts.builder().claim("tenant", "acme").signWith(key).compact();
// or consumer: drop the requirement if optional
Jwts.parser().verifyWith(key).build().parse(jwt);

Defensive patterns

Strategy: validation

Validate before calling

io.jsonwebtoken.Claims c = Jwts.parser().build().parseUnsecuredClaims(jwt).getPayload();
if (!c.containsKey("tenant")) {
    throw new IllegalStateException("Token lacks required claim 'tenant'");
}

Try / catch

try {
    claims = Jwts.parser().require("tenant", "acme").verifyWith(key).build().parseSignedClaims(jwt).getPayload();
} catch (io.jsonwebtoken.MissingClaimException e) {
    // reject token; log e.getClaimName()
}

Prevention

Share a claim-schema contract between issuer and consumers
Decode a sample token from the producer and verify all required claim names exist
Keep claim names in a shared constants class to avoid typos
Write integration tests using tokens from the real producer

When it happens

Trigger: Calling DefaultJwtParserBuilder.require("aud", value) (or requireExpiration, requireIssuedAt, etc.) and then parsing a JWT that does not contain that claim name at all.

Common situations: Verifier expects an 'aud'/'iss'/'role' claim the token producer never set; tokens issued by an older version of the producing service lacking newly-required claims; copy-pasted require() calls referencing misspelled claim names.

Related errors

AI-assisted analysis of jwtk/jjwt@fb71496164 (2026-09-09). Data as JSON: /api/errors/024521a23320cb1d. Report an issue: GitHub.

Appendix: source

Thrown at impl/src/main/java/io/jsonwebtoken/impl/DefaultJwtParser.java:756

            if (expectedClaimValue instanceof Date) {
                try {
                    actualClaimValue = claims.get(expectedClaimName, Date.class);
                } catch (Exception e) {
                    String msg = "JWT Claim '" + expectedClaimName + "' was expected to be a Date, but its value " +
                            "cannot be converted to a Date using current heuristics.  Value: " + actualClaimValue;
                    throw new IncorrectClaimException(header, claims, expectedClaimName, expectedClaimValue, msg);
                }
            }

            if (actualClaimValue == null) {
                boolean collection = expectedClaimValue instanceof Collection;
                String msg = "Missing '" + expectedClaimName + "' claim. Expected value";
                if (collection) {
                    msg += "s: " + expectedClaimValue;
                } else {
                    msg += ": " + expectedClaimValue;
                }
                throw new MissingClaimException(header, claims, expectedClaimName, expectedClaimValue, msg);
            } else if (expectedClaimValue instanceof Collection) {
                Collection<?> expectedValues = (Collection<?>) expectedClaimValue;
                Collection<?> actualValues = actualClaimValue instanceof Collection ? (Collection<?>) actualClaimValue :
                        Collections.setOf(actualClaimValue);
                for (Object expectedValue : expectedValues) {
                    if (!Collections.contains(actualValues.iterator(), expectedValue)) {
                        String msg = String.format(MISSING_EXPECTED_CLAIM_VALUE_MESSAGE_TEMPLATE,
                                expectedValue, expectedClaimName, actualValues);
                        throw new IncorrectClaimException(header, claims, expectedClaimName, expectedClaimValue, msg);
                    }
                }
            } else if (!expectedClaimValue.equals(actualClaimValue)) {
                String msg = String.format(INCORRECT_EXPECTED_CLAIM_MESSAGE_TEMPLATE,
                        expectedClaimName, expectedClaimValue, actualClaimValue);
                throw new IncorrectClaimException(header, claims, expectedClaimName, expectedClaimValue, msg);
            }
        }
    }

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