CODEWITHSUNDEEP
javamavenbukkitcaffeine-cache
Pro Poop
Pro Poop

Reputation: 456

java.lang.NoClassDefFoundError while using caffeine

I was making a Minecraft plugin (with maven) and was going to use caffeine for a cache, but when I ran my server with the plugin jar, I got the error:

java.lang.NoClassDefFoundError: com/github/benmanes/caffeine/cache/Caffeine

I am updated to the latest version of caffeine (v3.0.3) and maven (v3.8.1). I honestly have nothing else to show other than that error. I only imported the following caffeine packages:

import com.github.benmanes.caffeine.cache.Cache;
import com.github.benmanes.caffeine.cache.Caffeine

pom.xml (no repo)

<dependency>
 <groupId>com.github.ben-manes.caffeine</groupId>
 <artifactId>caffeine</artifactId>
 <version>3.0.3</version>
</dependency>

server log: https://pastebin.com/zMzx37dk

Upvotes: 0

Views: 2129

Answers (1)

Peyang
Peyang

Reputation: 117

It seems that the cause is that the library is not included in the jar file. Try building by adding code like the following to plugins in pom.xml.

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-shade-plugin</artifactId>
    <version>3.2.4</version>
    <executions>
        <execution>
            <phase>package</phase>
            <goals>
                <goal>shade</goal>
            </goals>
            <configuration>
                <createDependencyReducedPom>false</createDependencyReducedPom>
            </configuration>
        </execution>
    </executions>
</plugin>

Upvotes: 0

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