java.lang.ClassNotFoundException: com.fasterxml.jackson.annotation.JsonInclude$Value

Question

I am trying to convert my json string to java object and I am getting error

Exception in thread "main" java.lang.NoClassDefFoundError: com/fasterxml/jackson/annotation/JsonInclude$Value
    at com.fasterxml.jackson.databind.cfg.MapperConfig.<clinit>(MapperConfig.java:45)
    at com.fasterxml.jackson.databind.ObjectMapper.<init>(ObjectMapper.java:535)
    at com.fasterxml.jackson.databind.ObjectMapper.<init>(ObjectMapper.java:452)
    at com.allianz.cmis.util.ApacheHttpClientGet.main(ApacheHttpClientGet.java:65)
Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.annotation.JsonInclude$Value
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    ... 4 more

Here is my json string and my code snippet

json string {'ctpnsw': [{'abc' , 'def' }]}

Model

    public class Fields {
        
         private List<String> ctpnsw;
    
        public List<String> getCtpnsw() {
            return ctpnsw;
        }
    
        public void setCtpnsw(List<String> ctpnsw) {
            this.ctpnsw = ctpnsw;
        }
        
    }

Java code

`ObjectMapper mapper = new ObjectMapper();
                List<Fields> list = mapper.readValue(output, TypeFactory.defaultInstance().constructCollectionType(List.class,Fields.class));
                System.out.println(list);`

Answer 1

Sorry late to party but Using below dependency solved my problem.

Attached link: https://github.com/jcustenborder/kafka-connect-spooldir/issues/156

<dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.12.0</version>
</dependency>

Answer 2

this is a version problem change version > 2.4 to 1.9 solve it

<dependency>  
<groupId>com.fasterxml.jackson.jaxrs</groupId>  
<artifactId>jackson-jaxrs-xml-provider</artifactId>  
<version>2.4.1</version>  

to

<dependency>  
<groupId>org.codehaus.jackson</groupId>  
<artifactId>jackson-mapper-asl</artifactId>  
<version>1.9.4</version>  

Answer 3

I had different version of annotations jar. Changed all 3 jars to use SAME version of databind,annotations and core jackson jars

<dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-annotations</artifactId>
        <version>2.8.6</version>
</dependency>

Answer 4

Jackson marshalling/unmarshalling requires following jar files of same version.

1. jackson-core

2. jackson-databind

3. jackson-annotations

   Make sure that you have added all these with same version in your classpath. In your case jackson-annotations is missing in classpath.

Answer 5

How about adding this to your pom.xml

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>${jackson.version}</version>
</dependency>

Answer 6

Start adding required jackson related jars which helps in converting JSON to POJO and POJO to JSON responses. (jackson-core, jackson-annotations, jackson-databind). Lets pretend you have already added these Jar still you're facing this issue here are some of the trouble shooting steps

TROUBLE SHOOTING STEPS:

1. First check if they are any conflicts with any other jackson related jars which comes with different spring/java related jars with maven command mvn dependecy:tree if you find any conflicting jackson jars try excluding them like below

   <exclusion>      
   <groupId>com.fasterxml.jackson.core</groupId>  
   <artifactId>jackson-databind</artifactId>    
   </exclusion>   
   </<exclusions>

2. If you didn't find any conflicts then go to you're local maven .m2 directory (storage for all local maven dependencies) verify the expecting class is part of the jar.

cd (.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.13.2.2)

jar -xvf this command will explode the jar and generates all the corresponding classes

3. If it didn't worked still try deleting/re importing jackson related folder from local repository (.m2). you can re import by executing maven command (mvn clean install)

Answer 7

Get all 3 jackson jars and add them to your build path:

https://mvnrepository.com/artifact/com.fasterxml.jackson.core

Answer 8

I had the same error message. In my case, Jackson consisted of multiple JAR files. Sadly, they had different versions of jackson-core and jackson-annotations which resulted in the above exception.

Maybe you don't have the jackson-annotation JAR in your classpath, at least not in the correct version. You can analyze the used library versions with the command mvn dependency:tree.

Answer 9

I also faced the similar issues and by referring to the above solutions i was able to resolve the issue.

All the dependencies must have same version.

Following are the dependencies added in the pom.xml file

<dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.8.7</version>
</dependency>


 <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.8.7</version>
 </dependency>


 <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.8.7</version>
  </dependency>

Answer 10

Excluse jackson-core and jackson-annotations from your jackson-databind dependency. They try to add them seperately.

<dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>${com.fasterxml.jackson.core.version}</version>
      <exclusions>
        <exclusion>
          <groupId>com.fasterxml.jackson.core</groupId>
          <artifactId>jackson-core</artifactId>
        </exclusion>
        <exclusion>
          <groupId>com.fasterxml.jackson.core</groupId>
          <artifactId>jackson-annotations</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-annotations</artifactId>
      <version>${com.fasterxml.jackson.core.version}</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-core</artifactId>
      <version>${com.fasterxml.jackson.core.version}</version>
    </dependency>

Please remember that all dependencies have to be the same version.

Answer 11

Use Jackson-annotations.jar will solve the problem, as it worked for me.

Answer 12

Even though this answer was too late, I'm adding it because I also went through a horrible time finding answer for the same matter. Only different was, I was struggling with AWS Comprehend Medical API.

At the moment I'm writing this answer, if anyone come across the same issue with any AWS SDKs please downgrade jackson-annotaions or any jackson dependencies to 2.8.* versions. The latest 2.9.* versions does not working properly with AWS SDK for some reason. Anyone have any idea about the reason behind that feel free to comment below.

Just in case if anyone is lazy to google maven repos, I have linked down necessary repos.Check them out!

• Jackson-Core Repo
• Jackson-Core-Databind - 2.8.11.3
• Jackson-Core - 2.8.6
• Jackson Annotations - 2.8.11

Answer 13

Use jackson-bom which will have all the three jackson versions.i.e.jackson-annotations, jackson-core and jackson-databind. This will resolve the dependencies related to those versions