java.lang.ClassNotFoundException: feign.optionals.OptionalDecoder

See original GitHub issue

<dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>Finchley.M9</version> <type>pom</type> <scope>import</scope> </dependency>

The First Question: <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-openfeign</artifactId> </dependency> In the spring cloud Finchley.M9, the annotation of ‘@feignclient’ could not be found. why need to add the dependency of ‘spring-cloud-openfeign-core’?

the second Question: in my project, when dependency other *.jar(the jar is feign project) in error java.lang.ClassNotFoundException: feign.optionals.OptionalDecoder

Issue Analytics

State:
Created 5 years ago
Comments:9 (3 by maintainers)

Top GitHub Comments

1reaction

mrvon2015commented, Apr 17, 2018

1.) <version>2.0.0.M2</version> can not find spring-cloud-openfeign-core, and find the spring-cloud-netflix-core 2. )because lack the jar

<dependency>
         <groupId>io.github.openfeign</groupId>
         <artifactId>feign-java8</artifactId>
 </dependency>

0reactions

henzercommented, Apr 17, 2020

Hi @keyantec, there is no need to add feign-java8 library. The OptionalDecoder class was added into feign-core since 10.0.0 version. You should update it

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