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io.jsonwebtoken.CompressionCodec: Error reading configuration file #648
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No code example? Test case? Sample application? It's impossible for us to help without more information. Also, for future usability questions, please kindly read https://github.com/jwtk/jjwt#help-questions before opening a GitHub issue. Thanks! |
I know it is a weird question, after I reboot my application, there is no more errors. |
@lhazlewood we're seeing the same in our AWS API Gateway+Lambda logs. This happens sporadically, and since AWS is recycling the underlying lambda container instances behind the scenes it's very difficult for us to create a reproducer for this. Our guess is that something is leaking file/stream/IO handles (at least the call stack would appear to suggest as much). It might be a good idea to carefully review the stream-handling and make sure all resources are correctly being closed/released Here's an exert from one of our logs:
Is it possible to reopen this ticket? |
@mrwilby - thanks for the stack trace, that was helpful! It's so weird that you posted this today - another problem with This is due to the way JJWT uses the JDK So just like in #751, the workaround for this (until we can address the The logic that calls I'll consider this issue a duplicate of that one, so I don't think it needs be re-opened, unless I'm missing something. cc @bdemers |
Thanks @lhazlewood . We're not actually using compression in our system, so we'll possibly disable that as you suggested. However, I'm still not clear on what is actually responsible for the handle leak. Do you believe that the root cause of the problem is somehow related to the ServiceLoader calls themselves? |
@mrwilby it most definitely is. The JDK This is corroborated by your stack trace's line:
and more directly, it's the at java.util.ServiceLoader.fail(ServiceLoader.java:232)
at java.util.ServiceLoader.parse(ServiceLoader.java:309)
at java.util.ServiceLoader.access$200(ServiceLoader.java:185)
at java.util.ServiceLoader$LazyIterator.hasNextService(ServiceLoader.java:357)
at java.util.ServiceLoader$LazyIterator.hasNext(ServiceLoader.java:393)
at java.util.ServiceLoader$1.hasNext(ServiceLoader.java:474)
at io.jsonwebtoken.impl.lang.Services.loadAll(Services.java:80) So as you can see, JJWT's I hope that helps! cc @bdemers |
i have the same problem twice a week, after I reboot my application, there is no more errors. |
Which versions of Java are you folks using? |
We're using Open JDK 8 (I can check the specific version if it helps). |
That would be my guess, but it does seem odd that multiple people have reported it. @mrwilby did fixing your handle leak resolve this issue for you? |
There could be a file handle leak in application code, sure, but it could also just be the volume of calls to I personally would expect #752 will eliminate any file I/O no matter how many (or not) parsers are created, so that should put an end to these issues in these types of transient environments, I would think. |
OH! I would have assumed it would cache the lookup too (I'll try to debug a little to confirm). We could layer in a cache, instead of migrating away #752, but we continue the discussion over on that issue after a little more digging. |
[![Mend Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com) This PR contains the following updates: | Package | Change | Age | Adoption | Passing | Confidence | |---|---|---|---|---|---| | [io.jsonwebtoken:jjwt-gson](https://togithub.com/jwtk/jjwt) | `0.11.5` -> `0.12.5` | [![age](https://developer.mend.io/api/mc/badges/age/maven/io.jsonwebtoken:jjwt-gson/0.12.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/io.jsonwebtoken:jjwt-gson/0.12.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/io.jsonwebtoken:jjwt-gson/0.11.5/0.12.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/io.jsonwebtoken:jjwt-gson/0.11.5/0.12.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | | [io.jsonwebtoken:jjwt-impl](https://togithub.com/jwtk/jjwt) | `0.11.5` -> `0.12.5` | [![age](https://developer.mend.io/api/mc/badges/age/maven/io.jsonwebtoken:jjwt-impl/0.12.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/io.jsonwebtoken:jjwt-impl/0.12.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/io.jsonwebtoken:jjwt-impl/0.11.5/0.12.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/io.jsonwebtoken:jjwt-impl/0.11.5/0.12.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | | [io.jsonwebtoken:jjwt-api](https://togithub.com/jwtk/jjwt) | `0.11.5` -> `0.12.5` | [![age](https://developer.mend.io/api/mc/badges/age/maven/io.jsonwebtoken:jjwt-api/0.12.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/io.jsonwebtoken:jjwt-api/0.12.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/io.jsonwebtoken:jjwt-api/0.11.5/0.12.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/io.jsonwebtoken:jjwt-api/0.11.5/0.12.5?slim=true)](https://docs.renovatebot.com/merge-confidence/) | --- > [!WARNING] > Some dependencies could not be looked up. Check the Dependency Dashboard for more information. --- ### Release Notes <details> <summary>jwtk/jjwt (io.jsonwebtoken:jjwt-gson)</summary> ### [`v0.12.5`](https://togithub.com/jwtk/jjwt/blob/HEAD/CHANGELOG.md#0125) [Compare Source](https://togithub.com/jwtk/jjwt/compare/0.12.4...0.12.5) This patch release: - Ensures that builders' `NestedCollection` changes are applied to the collection immediately as mutation methods are called, no longer requiring application developers to call `.and()` to 'commit' or apply a change. For example, prior to this release, the following code did not apply changes: ```java JwtBuilder builder = Jwts.builder(); builder.audience().add("an-audience"); // no .and() call builder.compact(); // would not keep 'an-audience' ``` Now this code works as expected and all other `NestedCollection` instances like it apply changes immediately (e.g. when calling `.add(value)`). However, standard fluent builder chains are still recommended for readability when feasible, e.g. ```java Jwts.builder() .audience().add("an-audience").and() // allows fluent chaining .subject("Joe") // etc... .compact() ``` See [Issue 916](https://togithub.com/jwtk/jjwt/issues/916). ### [`v0.12.4`](https://togithub.com/jwtk/jjwt/blob/HEAD/CHANGELOG.md#0124) [Compare Source](https://togithub.com/jwtk/jjwt/compare/0.12.3...0.12.4) This patch release includes various changes listed below. ##### Jackson Default Parsing Behavior This release makes two behavioral changes to JJWT's default Jackson `ObjectMapper` parsing settings: 1. In the interest of having stronger standards to reject potentially malformed/malicious/accidental JSON that could have undesirable effects on an application, JJWT's default ` ObjectMapper `is now configured to explicitly reject/fail parsing JSON (JWT headers and/or Claims) if/when that JSON contains duplicate JSON member names. For example, now the following JSON, if parsed, would fail (be rejected) by default: ```json { "hello": "world", "thisWillFail": 42, "thisWillFail": "test" } ``` Technically, the JWT RFCs *do allow* duplicate named fields as long as the last parsed member is the one used (see [JWS RFC 7515, Section 4](https://datatracker.ietf.org/doc/html/rfc7515#section-4)), so this is allowed. However, because JWTs often reflect security concepts, it's usually better to be defensive and reject these unexpected scenarios by default. The RFC later supports this position/preference in [Section 10.12](https://datatracker.ietf.org/doc/html/rfc7515#section-10.12): Ambiguous and potentially exploitable situations could arise if the JSON parser used does not enforce the uniqueness of member names or returns an unpredictable value for duplicate member names. Finally, this is just a default, and the RFC does indeed allow duplicate member names if the last value is used, so applications that require duplicates to be allowed can simply configure their own `ObjectMapper` and use that with JJWT instead of assuming this (new) JJWT default. See [Issue #​877](https://togithub.com/jwtk/jjwt/issues/877) for more. 2. If using JJWT's support to use Jackson to parse [Custom Claim Types](https://togithub.com/jwtk/jjwt#json-jackson-custom-types) (for example, a Claim that should be unmarshalled into a POJO), and the JSON for that POJO contained a member that is not represented in the specified class, Jackson would fail parsing by default. Because POJOs and JSON data models can sometimes be out of sync due to different class versions, the default behavior has been changed to ignore these unknown JSON members instead of failing (i.e. the `ObjectMapper`'s `DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES` is now set to `false`) by default. Again, if you prefer the stricter behavior of rejecting JSON with extra or unknown properties, you can configure `true` on your own `ObjectMapper` instance and use that instance with the `Jwts.parser()` builder. ##### Additional Changes This release also: - Fixes a thread-safety issue when using `java.util.ServiceLoader` to dynamically lookup/instantiate pluggable implementations of JJWT interfaces (e.g. JSON parsers, etc). See [Issue #​873](https://togithub.com/jwtk/jjwt/issues/873) and its documented fix in [PR #​893](https://togithub.com/jwtk/jjwt/pull/892). - Ensures Android environments and older `org.json` library usages can parse JSON from a `JwtBuilder`-provided `java.io.Reader` instance. [Issue 882](https://togithub.com/jwtk/jjwt/issues/882). - Ensures a single string `aud` (Audience) claim is retained (without converting it to a `Set`) when copying/applying a source Claims instance to a destination Claims builder. [Issue 890](https://togithub.com/jwtk/jjwt/issues/890). - Ensures P-256, P-384 and P-521 Elliptic Curve JWKs zero-pad their field element (`x`, `y`, and `d`) byte array values if necessary before Base64Url-encoding per [RFC 7518](https://datatracker.ietf.org/doc/html/rfc7518), Sections [6.2.1.2](https://datatracker.ietf.org/doc/html/rfc7518#section-6.2.1.2), [6.2.1.3](https://datatracker.ietf.org/doc/html/rfc7518#section-6.2.1.3), and [6.2.2.1](https://datatracker.ietf.org/doc/html/rfc7518#section-6.2.2.1), respectively. [Issue 901](https://togithub.com/jwtk/jjwt/issues/901). - Ensures that Secret JWKs for HMAC-SHA algorithms with `k` sizes larger than the algorithm minimum can be parsed/used as expected. See [Issue #​905](https://togithub.com/jwtk/jjwt/issues/905) - Ensures there is an upper bound (maximum) iterations enforced for PBES2 decryption to help mitigate potential DoS attacks. Many thanks to Jingcheng Yang and Jianjun Chen from Sichuan University and Zhongguancun Lab for their work on this. See [PR 911](https://togithub.com/jwtk/jjwt/pull/911). - Fixes various typos in documentation and JavaDoc. Thanks to those contributing pull requests for these! ### [`v0.12.3`](https://togithub.com/jwtk/jjwt/blob/HEAD/CHANGELOG.md#0123) [Compare Source](https://togithub.com/jwtk/jjwt/compare/0.12.2...0.12.3) This patch release: - Upgrades the `org.json` dependency to `20231013` to address that library's [CVE-2023-5072](https://nvd.nist.gov/vuln/detail/CVE-2023-5072) vulnerability. - (Re-)enables empty values for custom claims, which was the behavior in <= 0.11.5. [Issue 858](https://togithub.com/jwtk/jjwt/issues/858). ### [`v0.12.2`](https://togithub.com/jwtk/jjwt/blob/HEAD/CHANGELOG.md#0122) [Compare Source](https://togithub.com/jwtk/jjwt/compare/0.12.1...0.12.2) This is a follow-up release to finalize the work in 0.12.1 that tried to fix a reflection scope problem on >= JDK 17. The 0.12.1 fix worked, but only if the importing project or application did *not* have its own `module-info.java` file. This release removes that reflection code entirely in favor of a JJWT-native implementation, eliminating JPMS module (scope) problems on >= JDK 17. As such, `--add-opens` flags are no longer required to use JJWT. The fix has been tested up through JDK 21 in a separate application environment (out of JJWT's codebase) to assert expected functionality in a 'clean room' environment in a project both with and without `module-info.java` usage. ### [`v0.12.1`](https://togithub.com/jwtk/jjwt/blob/HEAD/CHANGELOG.md#0121) [Compare Source](https://togithub.com/jwtk/jjwt/compare/0.12.0...0.12.1) Enabled reflective access on JDK 17+ to `java.io.ByteArrayInputStream` and `sun.security.util.KeyUtil` for `jjwt-impl.jar` ### [`v0.12.0`](https://togithub.com/jwtk/jjwt/blob/HEAD/CHANGELOG.md#0120) [Compare Source](https://togithub.com/jwtk/jjwt/compare/0.11.5...0.12.0) This is a big release! JJWT now fully supports Encrypted JSON Web Tokens (JWE), JSON Web Keys (JWK) and more! See the sections below enumerating all new features as well as important notes on breaking changes or backwards-incompatible changes made in preparation for the upcoming 1.0 release. **Because breaking changes are being introduced, it is strongly recommended to wait until the upcoming 1.0 release where you can address breaking changes one time only**. Those that need immediate JWE encryption and JWK key support however will likely want to upgrade now and deal with the smaller subset of breaking changes in the 1.0 release. ##### Simplified Starter Jar Those upgrading to new modular JJWT versions from old single-jar versions will transparently obtain everything they need in their Maven, Gradle or Android projects. JJWT's early releases had one and only one .jar: `jjwt.jar`. Later releases moved to a modular design with 'api' and 'impl' jars including 'plugin' jars for Jackson, GSON, org.json, etc. Some users upgrading from the earlier single jar to JJWT's later versions have been frustrated by being forced to learn how to configure the more modular .jars. This release re-introduces the `jjwt.jar` artifact again, but this time it is simply an empty .jar with Maven metadata that will automatically transitively download the following into a project, retaining the old single-jar behavior: - `jjwt-api.jar` - `jjwt-impl.jar` - `jjwt-jackson.jar` Naturally, developers are still encouraged to configure the modular .jars as described in JJWT's documentation for greater control and to enable their preferred JSON parser, but this stop-gap should help those unaware when upgrading. ##### JSON Web Encryption (JWE) Support! This has been a long-awaited feature for JJWT, years in the making, and it is quite extensive - so many encryption algorithms and key management algorithms are defined by the JWA specification, and new API concepts had to be introduced for all of them, as well as extensive testing with RFC-defined test vectors. The wait is over!\ All JWA-defined encryption algorithms and key management algorithms are fully implemented and supported and available immediately. For example: ```java AeadAlgorithm enc = Jwts.ENC.A256GCM; SecretKey key = enc.key().build(); String compact = Jwts.builder().setSubject("Joe").encryptWith(key, enc).compact(); Jwe<Claims> jwe = Jwts.parser().decryptWith(key).build().parseEncryptedClaims(compact); ``` Many other RSA and Elliptic Curve examples are in the full README documentation. ##### JSON Web Key (JWK) Support! Representing cryptographic keys - SecretKeys, RSA Public and Private Keys, Elliptic Curve Public and Private keys - as fully encoded JSON objects according to the JWK specification - is now fully implemented and supported. The new `Jwks` utility class exists to create JWK builders and parsers as desired. For example: ```java SecretKey key = Jwts.SIG.HS256.key().build(); SecretJwk jwk = Jwks.builder().forKey(key).build(); assert key.equals(jwk.toKey()); // or if receiving a JWK string: Jwk<?> parsedJwk = Jwks.parser().build().parse(jwkString); assert jwk.equals(parsedJwk); assert key.equals(parsedJwk.toKey()); ``` Many JJWT users won't need to use JWKs explicitly, but some JWA Key Management Algorithms (and lots of RFC test vectors) utilize JWKs when transmitting JWEs. As this was required by JWE, it is now implemented in full for JWE use as well as general-purpose JWK support. ##### JWK Thumbprint and JWK Thumbprint URI support The [JWK Thumbprint](https://www.rfc-editor.org/rfc/rfc7638.html) and [JWK Thumbprint URI](https://www.rfc-editor.org/rfc/rfc9278.html) RFC specifications are now fully supported. Please see the README.md file's corresponding named sections for both for full documentation and usage examples. ##### JWS Unencoded Payload Option (`b64`) support The [JSON Web Signature (JWS) Unencoded Payload Option](https://www.rfc-editor.org/rfc/rfc7797.html) RFC specification is now fully supported. Please see the README.md corresponding named section for documentation and usage examples. ##### Better PKCS11 and Hardware Security Module (HSM) support Previous versions of JJWT enforced that Private Keys implemented the `RSAKey` and `ECKey` interfaces to enforce key length requirements. With this release, JJWT will still perform those checks when those data types are available, but if not, as is common with keys from PKCS11 and HSM KeyStores, JJWT will still allow those Keys to be used, expecting the underlying Security Provider to enforce any key requirements. This should reduce or eliminate any custom code previously written to extend JJWT to use keys from those KeyStores or Providers. Additionally, PKCS11/HSM tests using [SoftHSMv2](https://www.opendnssec.org/softhsm/) are run on every build with every JWS MAC and Signature algorithm and every JWE Key algorithm to ensure continued stable support with Android and Sun PKCS11 implementations and spec-compliant Hardware Security Modules that use the PKCS11 interface (such as YubiKey, etc.) ##### Custom Signature Algorithms The `io.jsonwebtoken.SignatureAlgorithm` enum has been deprecated in favor of new `io.jsonwebtoken.security.SecureDigestAlgorithm`, `io.jsonwebtoken.security.MacAlgorithm`, and `io.jsonwebtoken.security.SignatureAlgorithm` interfaces to allow custom algorithm implementations. The new nested `Jwts.SIG` static inner class is a registry of all standard JWS algorithms as expected, exactly like the old enum. This change was made because enums are a static concept by design and cannot support custom values: those who wanted to use custom signature algorithms could not do so until now. The new interfaces now allow anyone to plug in and support custom algorithms with JJWT as desired. ##### KeyBuilder and KeyPairBuilder Because the `io.jsonwebtoken.security.Keys#secretKeyFor` and `io.jsonwebtoken.security.Keys#keyPairFor` methods accepted the now-deprecated `io.jsonwebtoken.SignatureAlgorithm` enum, they have also been deprecated in favor of calling new `key()` or `keyPair()` builder methods on `MacAlgorithm` and `SignatureAlgorithm` instances directly.\ For example: ```java SecretKey key = Jwts.SIG.HS256.key().build(); KeyPair pair = Jwts.SIG.RS256.keyPair().build(); ``` The builders allow for customization of the JCA `Provider` and `SecureRandom` during Key or KeyPair generation if desired, whereas the old enum-based static utility methods did not. ##### Preparation for 1.0 Now that the JWE and JWK specifications are implemented, only a few things remain for JJWT to be considered at version 1.0. We have been waiting to apply the 1.0 release version number until the entire set of JWT specifications are fully supported **and** we drop JDK 7 support (to allow users to use JDK 8 APIs). To that end, we have had to deprecate some concepts, or in some cases, completely break backwards compatibility to ensure the transition to 1.0 (and JDK 8 APIs) are possible. Most backwards-incompatible changes are listed in the next section below. ##### Backwards Compatibility Breaking Changes, Warnings and Deprecations - `io.jsonwebtoken.Jwt`'s `getBody()` method has been deprecated in favor of a new `getPayload()` method to reflect correct JWT specification nomenclature/taxonomy. - `io.jsonwebtoken.Jws`'s `getSignature()` method has been deprecated in favor of a new `getDigest()` method to support expected congruent behavior with `Jwe` instances (both have digests). - `io.jsonwebtoken.JwtParser`'s `parseContentJwt`, `parseClaimsJwt`, `parseContentJws`, and `parseClaimsJws` methods have been deprecated in favor of more intuitive respective `parseUnsecuredContent`, `parseUnsecuredClaims`, `parseSignedContent` and `parseSignedClaims` methods. - `io.jsonwebtoken.CompressionCodec` is now deprecated in favor of the new `io.jsonwebtoken.io.CompressionAlgorithm` interface. This is to guarantee API congruence with all other JWT-identifiable algorithm IDs that can be set as a header value. - `io.jsonwebtoken.CompressionCodecResolver` has been deprecated in favor of the new `JwtParserBuilder#addCompressionAlgorithms` method. ##### Breaking Changes - **`io.jsonwebtoken.Claims` and `io.jsonwebtoken.Header` instances are now immutable** to enhance security and thread safety. Creation and mutation are supported with newly introduced `ClaimsBuilder` and `HeaderBuilder` concepts. Even though mutation methods have migrated, there are a couple that have been removed entirely: - `io.jsonwebtoken.JwsHeader#setAlgorithm` has been removed - the `JwtBuilder` will always set the appropriate `alg` header automatically based on builder state. - `io.jsonwebtoken.Header#setCompressionAlgorithm` has been removed - the `JwtBuilder` will always set the appropriate `zip` header automatically based on builder state. - `io.jsonwebtoken.Jwts`'s `header(Map)`, `jwsHeader()` and `jwsHeader(Map)` methods have been removed in favor of the new `header()` method that returns a `HeaderBuilder` to support method chaining and dynamic `Header` type creation. The `HeaderBuilder` will dynamically create a `Header`, `JwsHeader` or `JweHeader` automatically based on builder state. - Similarly, `io.jsonwebtoken.Jwts`'s `claims()` static method has been changed to return a `ClaimsBuilder` instead of a `Claims` instance. - **JWTs that do not contain JSON Claims now have a payload type of `byte[]` instead of `String`** (that is, `Jwt<byte[]>` instead of `Jwt<String>`). This is because JWTs, especially when used with the `cty` (Content Type) header, are capable of handling *any* type of payload, not just Strings. The previous JJWT releases didn't account for this, and now the API accurately reflects the JWT RFC specification payload capabilities. Additionally, the name of `plaintext` has been changed to `content` in method names and JavaDoc to reflect this taxonomy. This change has impacted the following JJWT APIs: - The `JwtBuilder`'s `setPayload(String)` method has been deprecated in favor of two new methods: - `setContent(byte[])`, and - `setContent(byte[], String contentType)` These new methods allow any kind of content within a JWT, not just Strings. The existing `setPayload(String)` method implementation has been changed to delegate to this new `setContent(byte[])` method with the argument's UTF-8 bytes, for example `setContent(payloadString.getBytes(StandardCharsets.UTF_8))`. - The `JwtParser`'s `Jwt<Header, String> parsePlaintextJwt(String plaintextJwt)` and `Jws<String> parsePlaintextJws(String plaintextJws)` methods have been changed to `Jwt<Header, byte[]> parseContentJwt(String plaintextJwt)` and `Jws<byte[]> parseContentJws(String plaintextJws)` respectively. - `JwtHandler`'s `onPlaintextJwt(String)` and `onPlaintextJws(String)` methods have been changed to `onContentJwt(byte[])` and `onContentJws(byte[])` respectively. - `io.jsonwebtoken.JwtHandlerAdapter` has been changed to reflect the above-mentioned name and `String`-to-`byte[]` argument changes, as well adding the `abstract` modifier. This class was never intended to be instantiated directly, and is provided for subclassing only. The missing modifier has been added to ensure the class is used as it had always been intended. - `io.jsonwebtoken.SigningKeyResolver`'s `resolveSigningKey(JwsHeader, String)` method has been changed to `resolveSigningKey(JwsHeader, byte[])`. - `io.jsonwebtoken.JwtParser` is now immutable. All mutation/modification methods (setters, etc) deprecated 4 years ago have been removed. All parser configuration requires using the `JwtParserBuilder`. - Similarly, `io.jsonwebtoken.Jwts`'s `parser()` method deprecated 4 years ago has been changed to now return a `JwtParserBuilder` instead of a direct `JwtParser` instance. The previous `Jwts.parserBuilder()` method has been removed as it is now redundant. - The `JwtParserBuilder` no longer supports `PrivateKey`s for signature verification. This was an old legacy behavior scheduled for removal years ago, and that change is now complete. For various cryptographic/security reasons, asymmetric public/private key signatures should always be created with `PrivateKey`s and verified with `PublicKey`s. - `io.jsonwebtoken.CompressionCodec` implementations are no longer discoverable via `java.util.ServiceLoader` due to runtime performance problems with the JDK's `ServiceLoader` implementation per [https://github.com/jwtk/jjwt/issues/648](https://togithub.com/jwtk/jjwt/issues/648)/648. Custom implementations should be made available to the `JwtParser` via the new `JwtParserBuilder#addCompressionAlgorithms` method. - Prior to this release, if there was a serialization problem when serializing the JWT Header, an `IllegalStateException` was thrown. If there was a problem when serializing the JWT claims, an `IllegalArgumentException` was thrown. This has been changed up to ensure consistency: any serialization error with either headers or claims will now throw a `io.jsonwebtoken.io.SerializationException`. - Parsing of unsecured JWTs (`alg` header of `none`) are now disabled by default as mandated by [RFC 7518, Section 3.6](https://www.rfc-editor.org/rfc/rfc7518.html#section-3.6). If you require parsing of unsecured JWTs, you must call the `JwtParserBuilder#enableUnsecured()` method, but note the security implications mentioned in that method's JavaDoc before doing so. - `io.jsonwebtoken.gson.io.GsonSerializer` now requires `Gson` instances that have a registered `GsonSupplierSerializer` type adapter, for example: ```java new GsonBuilder() .registerTypeHierarchyAdapter(io.jsonwebtoken.lang.Supplier.class, GsonSupplierSerializer.INSTANCE) .disableHtmlEscaping().create(); ``` This is to ensure JWKs have `toString()` and application log safety (do not print secure material), but still serialize to JSON correctly. - `io.jsonwebtoken.InvalidClaimException` and it's two subclasses (`IncorrectClaimException` and `MissingClaimException`) were previously mutable, allowing the corresponding claim name and claim value to be set on the exception after creation. These should have always been immutable without those setters (just getters), and this was a previous implementation oversight. This release has ensured they are immutable without the setters. </details> --- ### Configuration 📅 **Schedule**: Branch creation - "before 6:00am" in timezone Europe/Berlin, Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about these updates again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). 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Hi,
I found an error message when I use jjwt, how does this error happen?
It seems that it is not an exception, so I cannot catch it.
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