Spring Cloud API Gateway JWT Issue Web Token Issue

I have a problem about sending any request to a defined service through api gateway with the usage of bearer token coming from login.

After login, I tried to send a request to a defined service but I got this issue in JWTAuthenticationFilter of api gateway shown below.

java.lang.NoClassDefFoundError: javax/xml/bind/DatatypeConverter
    at io.jsonwebtoken.impl.Base64Codec.decode(Base64Codec.java:26) ~[jjwt-0.9.1.jar:0.9.1]
    at io.jsonwebtoken.impl.DefaultJwtParser.setSigningKey(DefaultJwtParser.java:151) ~[jjwt-0.9.1.jar:0.9.1]
    at com.microservice.apigateway.util.JwtUtils.validateJwtToken(JwtUtils.java:31) ~[classes/:na]
    at com.microservice.apigateway.filter.JwtAuthenticationFilter.filter(JwtAuthenticationFilter.java:55) ~[classes/:na]
    at org.springframework.cloud.gateway.filter.OrderedGatewayFilter.filter(OrderedGatewayFilter.java:44) ~[spring-cloud-gateway-server-3.1.4.jar:3.1.4]
    at org.springframework.cloud.gateway.handler.FilteringWebHandler$DefaultGatewayFilterChain.lambda$filter$0(FilteringWebHandler.java:117) ~[spring-cloud-gateway-server-3.1.4.jar:3.1.4]
    at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:44) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.Mono.subscribe(Mono.java:4455) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:263) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.InternalMonoOperator.subscribe(InternalMonoOperator.java:64) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.MonoDefer.subscribe(MonoDefer.java:52) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.Mono.subscribe(Mono.java:4455) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.MonoIgnoreThen$ThenIgnoreMain.subscribeNext(MonoIgnoreThen.java:263) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.MonoIgnoreThen.subscribe(MonoIgnoreThen.java:51) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:157) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.FluxConcatMap$ConcatMapImmediate.innerNext(FluxConcatMap.java:282) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.FluxConcatMap$ConcatMapInner.onNext(FluxConcatMap.java:863) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:122) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.FluxSwitchIfEmpty$SwitchIfEmptySubscriber.onNext(FluxSwitchIfEmpty.java:74) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.Operators$MonoSubscriber.complete(Operators.java:1816) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.MonoFlatMap$FlatMapMain.onNext(MonoFlatMap.java:151) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.FluxMap$MapSubscriber.onNext(FluxMap.java:122) ~[reactor-core-3.4.23.jar:3.4.23]
    at reactor.core.publisher.MonoNext$NextSubscriber.onNext(MonoNext.java:82) ~[reactor-core-3.4.23.jar:3.4.23]
    
java.lang.NoClassDefFoundError: javax/xml/bind/DatatypeConverter
    at io.jsonwebtoken.impl.Base64Codec.decode(Base64Codec.java:26) ~[jjwt-0.9.1.jar:0.9.1]
    at io.jsonwebtoken.impl.DefaultJwtParser.setSigningKey(DefaultJwtParser.java:151) ~[jjwt-0.9.1.jar:0.9.1]
    at com.microservice.apigateway.util.JwtUtils.validateJwtToken(JwtUtils.java:31) ~[classes/:na]
    at com.microservice.apigateway.filter.JwtAuthenticationFilter.filter(JwtAuthenticationFilter.java:55)

Caused by: java.lang.ClassNotFoundException: javax.xml.bind.DatatypeConverter

The exact location is in JWTUtils class with this line shown below.

Jwts.parser().setSigningKey(jwtSecret).parseClaimsJws(authToken);

How can I fix the issue?

Here is the repository : Link

Here is the screenshots : Link

Edited

After I added this dependency in pom.xml of api gateway shown below I got this issue. Here is the dependency

<dependency>
    <groupId>javax.xml.bind</groupId>
    <artifactId>jaxb-api</artifactId>
    <version>2.3.1</version>
</dependency>

Here is the error:

java.lang.NullPointerException: Cannot invoke "io.jsonwebtoken.Claims.get(Object)" because "claims" is null
    at com.microservice.apigateway.filter.JwtAuthenticationFilter.filter(JwtAuthenticationFilter.java:66) ~[classes/:na]

Answer

After I revised some codes in JWTUTils in API Gateway, the issue disappeared.

Here is the solution

final String authorization = request.getHeaders().getOrEmpty("Authorization").get(0);
final String token = authorization.replace("Bearer ", "");
jwtUtils.validateJwtToken(token);

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Answer