ErrLookup › jwtk/jjwt

jwtk/jjwt

Java JWT: JSON Web Token for Java and Android · Java · 406 source files

Analyzed at fb71496164 on 2026-09-09. 248 documented errors.

Code / MessageTypeSeverityTags
The ${keyType} key's size is ${size} bits which is not secur
exception error
Value must be ${articleFor(desired)} ${desired}, not ${artic
exception error java, jjwt, jwk, type-mismatch, key-parsing
Unable to determine JWA-standard Elliptic Curve for ${type}k
exception error jwt, jwe, ecdh, key-management, invalid-key
JWE Header epk value is not an Elliptic Curve Public JWK. Va
exception error jwe, jwk, ecdh, invalid-key
The ${keyType} key's size (ECParameterSpec order) is ${size}
exception error
The ${keyType} key's size is ${size} bits which is not secur
exception error
Invalid ECDSA signature format.
exception error jwt, ecdsa, signature, verification, security
${curveId} keys may not be used with ECDH-ES key agreement a
exception error jwt, jwe, ecdh, ed25519, rfc8037, key-management
Unable to deserialize: ${t.getMessage()}
exception error deserialization, json, jwt
Unsupported signature algorithm '${value}'
exception error
The provided Elliptic Curve ${keyType} key size (aka order b
exception error jwt, ecdsa, invalid-key, key-size
Unexpected content JWS.
exception error java, jwt, jjwt, jws, unsupported-jwt
wrap(nsa, jcaName, specifiedProvider, null)
exception error jca, crypto, nosuchalgorithm, jwt
Unexpected content JWE.
exception error java, jwt, jjwt, jwe, unsupported-jwt
Unable to decode input: ${e.getMessage()}
exception error decoding, base64, jwt
Unexpected unsecured Claims JWT.
exception error java, jwt, jjwt, unsupported-jwt, unsecured-token
Unable to serialize object of type ${className}: ${e.getMess
exception error serialization, json, jwt
${name()} is missing required ${param} value.
validation error jwt, jwk, missing-parameter, validation
${Class} callback execution failed: ${t.getMessage()}
exception error jce, crypto, provider, wrapped-exception
JWA Base64urlUInt values MUST be >= 0 (non-negative) per the
validation error jwt, jwa, biginteger, base64url
Protected Header crit set references unsupported header name
exception error jwt, jws, crit-header, unsupported-extension
'unsecuredDecompression' is only relevant if 'unsecured' is
exception error jwt, parser-config, compression, security
The ${keyType} key's algorithm '${alg}' does not equal a val
exception error
Cannot cast ${value.getClass().getName()} to ${COLLECTION_TY
validation error classcast, collection, type-mismatch
${String.format(MALFORMED_COMPLEX_ERROR, this.name, this.nam
exception error jwt, json, deserialization, security
Invalid RSA key algorithm name.
validation error java, jjwt, rsa, invalid-key, jwe
Invalid Gson instance - it has not been registered with the
exception error java, jjwt, gson, serialization, configuration
The ${keyType} key's algorithm cannot be null.
exception error
Value must be a positive integer.
validation error validation, integer, value-range
Illegal ${name} character: '${c}'
exception error base64, decoding, malformed-input
Unable to verify Elliptic Curve signature using provided ECP
exception error jwt, ecdsa, signature-verification, jca
Unable to verify JWS signature: the parser has encountered a
exception error jwt, jws, detached-payload, unencoded-payload, signature
JWT early by <differenceMillis> milliseconds before <nbfVal>
exception error jwt, clock-skew, token-validation, timing
The JWT header references compression algorithm '%s', but pa
exception error compression, dos, unsecured-jwt, unencoded-jws
Unable to derive key
exception error jwt, jwe, key-derivation, security
Invalid ${id} ASN.1 encoding: ${t.getMessage()}
exception error asn1, ed25519, key-encoding, invalid-key
Provided signature is ${actual} but ${id} signatures must be
exception error jwt, ecdsa, signature-format, rfc7518
Both 'content' and 'claims' cannot be specified. Choose eith
exception error jwt, builder, api-misuse
JWE Header epk value does not represent a point on the expec
exception error jwe, ecdh, curve, invalid-key
Unexpected Claims JWS.
exception error java, jwt, jjwt, jws, claims, unsupported-jwt
JWT Claim '<expectedClaimName>' was expected to be a Date, b
exception error jwt, claims-validation, date-format, type-mismatch
Unable to encode input: ${e.getMessage()}
exception error encoding, serialization, jwt
Unexpected Claims JWE.
exception error java, jwt, jjwt, jwe, claims, unsupported-jwt
String value is not a JWT NumericDate, nor is it ISO-8601-fo
validation error jwt, date-parsing, illegal-argument
The ${keyType} key's encoded bytes cannot be null.
exception error
Unable to load class named [${fqcn}] from the thread context
exception critical classpath, reflection, jwt, dependency
Not intended to be called.
exception error jwt, unsupported-operation, internal
Cannot create Date from '' value ''. Cause:
exception error jwt, claims, date-conversion
Cannot obtain required encoded bytes from key [${KeysBridge.
exception error key, encoded-bytes, invalidkey, hsm, jsonwebtoken
Unsupported ${id} ${algType} algorithm... is disabled (no ${
exception error jwt, unsupported-algorithm, parser-config
JWK Set keys[${i}]: ${e.getMessage()}
exception error jwk, jwks, unsupported-key, jsonwebtoken
JWK Set map keys must be Strings. Encountered key '${key}' o
exception error jwk, map-validation, illegal-argument, jsonwebtoken
JWS header does not contain a required 'alg' (Algorithm) hea
exception error jwt, jws, malformed-token, missing-header
Ciphertext decryption failed: Authentication tag verificatio
exception error jwe, aead, gcm, authentication-tag, tampering
${msg}
validation error java, assertion, empty-array, key-material
Invalid ${getName()} ${param} value: ${rawValue}. ${e.getMes
validation error
${familyName} ${keyType} keys must be ECKey instances.
exception error
Unable to invoke class method ${fqcn}#${methodName}. Ensure
exception error reflection, classpath, static-method
mark/reset not supported
exception error
wrap(e, jcaName, specifiedProvider, null)
exception error jca, crypto, wrapped-exception, jwt
RSA JWK 'oth' (Other Prime Info) must contain map elements o
exception error jwk, rsa, malformed-key, json
Value cannot be represented as a java.lang.Integer.
validation error type-conversion, integer, illegal-argument
Cannot decode input String. Cause: ${e.getMessage()}
validation error
${msgPrefix}${type} key must be an instance of ${clazz.getNa
exception error keypair, type-mismatch, cryptography, jsonwebtoken
Unable to find an implementation for ${spi} using java.util.
exception critical classpath, dependency, serviceloader
Unable to ${codecName}-decode ${name}: ${t.getMessage()}
validation error base64url, decoding, jwt, io
Unsupported signature algorithm '${alg}': ${e.getMessage()}
exception error jwt, signature, unsupported-algorithm
The 'none' algorithm cannot be used to create signatures.
exception error jwt, security, signature
Unable to determine a suitable MAC or Signature algorithm fo
exception error jwt, signing, key, hsm
Values must be either String or ${type.getName()} instances.
validation error type-mismatch, conversion, argument-validation
Cannot cast ${value.getClass().getName()} to ${COLLECTION_TY
validation error classcast, type-mismatch, jwt-claims
${message}
validation error java, jjwt, illegal-argument, assertion, input-validation
Missing expected '<expectedValue>' value in '<expectedClaimN
exception error jwt, claims-validation, audience-mismatch
Unable to compute ${getId()} signature with JCA algorithm '$
exception error signature, jca, crypto, jjwt
Unexpected unsecured content JWT.
exception error
Expected <expectedClaimName> claim to be: <expectedClaimValu
exception error jwt, claims-validation, value-mismatch
'b64' Unencoded payload option has been specified, but paylo
exception error jwt, jws, empty-payload
constant [%s] does not exist in enum type %s
exception error java, enum, argument-validation
The JWT header references compression algorithm '%s', but pa
exception error compression, dos, unencoded-jws, signing-key-resolver
Invalid claims: + t.getMessage()
exception error claims, malformed-jwt, type-mismatch, rfc7519
Compact JWE string represents an encrypted key, but the key
exception error jwe, malformed-jwt, base64
Array Size=${array.length}, offset=${offset}, length=${lengt
exception error
${message}Object of class [${objClassName}] must be an insta
exception error jwt, type-mismatch, assertion
The JWE header references key management algorithm '%s' but
exception error jwe, jwt, missing-auth-tag, malformed-token
Unable to instantiate instance with constructor [${ctor}]
exception error reflection, constructor, instantiation
${String.format(PUB_EXPONENT_EX_MSG, KeysBridge.toString(key
exception error rsa, jwk, unsupported-key, crt
Both 'keyLocator' and a 'verifyWith' key cannot be configure
exception error jwt, parser-config, conflicting-options
JWEs do not support key management alg header value 'none' p
exception error jwe, jwt, invalid-alg, malformed-token
PrivateKeys may not be used to verify digital signatures. Pr
exception error jwt, key-management, security, asymmetric-crypto
Reflection operation failed. This is likely due to an intern
exception error reflection, internal-error, invariant
${familyName} ${keyType} keys must be SecretKey instances.
exception error
The parsed JWT indicates it was signed with the '${algId}' s
exception error jwt, algorithm-confusion, security
The specified Elliptic Curve signing key is not strong enoug
exception error
Invalid ECDSA signature format
exception error jwt, ecdsa, der, signature-format
Unsecured JWSs (those with an alg header value of 'none') ar
exception error jwt, jws, unsecured, alg-none, security
numBytes argument must be >= 0
validation error random, bytes, argument-validation
Unable to convert Base64 String '${s}' to X509Certificate in
exception error x509, base64, certificate, jwt-header, jsonwebtoken
Invalid protected header: ${e.getMessage()}
exception error jwt, malformed-header, json
The 'NONE' signature algorithm does not support cryptographi
exception error
${getName()} instance is immutable and may not be modified.
exception error jwt, immutability, unsupported-operation