I am working on YouTube broadcast
sample examples. I have created a sample Java Project
& added required jars. But, when I try to run the project it throws exception.
Exception :
Throwable: com/fasterxml/jackson/core/JsonFactory
java.lang.NoClassDefFoundError: com/fasterxml/jackson/core/JsonFactory
at com.google.api.client.json.jackson2.JacksonFactory.<init>(JacksonFactory.java:44)
at com.google.api.services.samples.youtube.cmdline.live.Auth.<clinit>(Auth.java:35)
at com.google.api.services.samples.youtube.cmdline.live.CreateBroadcast.main(CreateBroadcast.java:55)
Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.core.JsonFactory
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)
... 3 more
I downloaded the project from this GitHub repository.
This question is related to
java
jar
noclassdeffounderror
live-streaming
youtube-data-api
If you are using springboot then jackson is added by default,
So the version of jackson you are adding manualy is probably conflicting with the one spring boot adds,
Try to delete the jackson dependencies from your pom,
If you need to override the version spring boots add, then you need to exclude it first and then add your own
In my case problem was when i added com.fasterxml.jackson.dataformat i put the version 2.11.0.
While all other Jackson dependencies were 2.8.0 and one of them was 2.11.0 and changing all to be 2.8.0 fixed it.
FYI, 2.11 is the latest but due to my legacy code, i kept it as 2.8 as well.
Before Fix [ERROR]
com.fasterxml.jackson.dataformat version is 2.11.0
com.fasterxml.jackson.dataformat
jackson-dataformat-xml
2.11.0
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.8.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.8.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.8.0</version>
</dependency>
After Fix [WORKED] com.fasterxml.jackson.dataformat version is 2.8.0
com.fasterxml.jackson.dataformat jackson-dataformat-xml 2.8.0<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.8.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.8.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.8.0</version>
</dependency>
As of jackson 2.7.4 (or earlier maybe), the class is in jacskon-jaxrs-base.jar, which is contained in jackson-jaxrs-json-provider
I have had the same error. I added dependency on pom.xml (I am working with Maven)
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.12.1</version>
</dependency>
I started trying with version 2.9.0, then I found a different error (com/fasterxml/jackson/core/exc/InputCoercionException) then I try different versions until all errors were solved with version 2.12.1
Because of old version I got this error. Then I changed to this version n error gone Using maven my pom.xml
<properties>
...
<jackson.version>2.5.2</jackson.version>
</properties>
<dependencies>
...
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>${jackson.version}</version>
</dependency>
</dependencies>
my old version was '2.2.3'
The requested jar is probably not jackson-annotations-x.y.z.jar but jackson-core-x.y.z.jar which could be found here: http://www.java2s.com/Code/Jar/j/Downloadjacksoncore220rc1jar.htm
Solved the problem by upgrading the dependency to below version
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.9.8</version>
</dependency>
You have to add one jar : jackson-annotations-2.1.2.jar
You can download it from here and add it to the class path
If you are using the gradle then add the following dependency.
compile 'com.fasterxml.jackson.jaxrs:jackson-jaxrs-json-provider:2.5.2'
Source: Stackoverflow.com