Hello guys. I need advices to fix an issue: I am trying to package all libraries (flink, etc..) into a jar file. I am using Intellij Idea to build artifacts. After I run the jar file it tells me:

Caused by: java.lang.NoClassDefFoundError: org/apache/flink/streaming/api/functions/ProcessFunction

Any idea how to solve this issue? And yes, my

pom.xml

contains all required dependencies:

<dependency>
    <groupId>commons-io</groupId>
    <artifactId>commons-io</artifactId>
    <version>2.11.0</version>
    <scope>compile</scope>
</dependency>

<dependency>
    <groupId>org.apache.flink</groupId>
    <artifactId>flink-streaming-java</artifactId>
    <version>${flink.version}</version>
    <scope>compile</scope>
</dependency>
<dependency>
    <groupId>org.apache.flink</groupId>
    <artifactId>flink-clients</artifactId>
    <version>${flink.version}</version>
    <scope>compile</scope>
</dependency>
<dependency>
    <groupId>org.apache.flink</groupId>
    <artifactId>flink-table-api-java-bridge</artifactId>
    <version>${flink.version}</version>
    <scope>compile</scope>
</dependency>
<dependency>
    <groupId>org.apache.flink</groupId>
    <artifactId>flink-table-planner-loader</artifactId>
    <version>${flink.version}</version>
    <scope>compile</scope>
</dependency>
<dependency>
    <groupId>org.apache.flink</groupId>
    <artifactId>flink-table-runtime</artifactId>
    <version>${flink.version}</version>
    <scope>compile</scope>
</dependency>

<!-- Adding jackson dependencies. They must be in the default scope (compile). -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>${jackson.databind.version}</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>${jackson.version}</version>
</dependency>
<!-- jackson needs jackson-datatype-jsr310 for Java 8 java.time.Instant support -->
<dependency>
    <groupId>com.fasterxml.jackson.datatype</groupId>
    <artifactId>jackson-datatype-jsr310</artifactId>
    <version>${jackson.version}</version>
</dependency>
<dependency>
    <groupId>org.apache.flink</groupId>
    <artifactId>flink-connector-kafka</artifactId>
    <version>${flink.version}</version>
</dependency>
<dependency>
    <groupId>org.apache.flink</groupId>
    <artifactId>flink-connector-base</artifactId>
    <version>${flink.version}</version>
</dependency>
<dependency>
    <groupId>org.apache.flink</groupId>
    <artifactId>flink-json</artifactId>
    <version>${flink.version}</version>
</dependency>
<dependency>
    <groupId>org.apache.kafka</groupId>
    <artifactId>kafka-clients</artifactId>
    <version>${kafka.version}</version>
</dependency>

where

<properties>
    <flink.version>1.17.0</flink.version>
    <jackson.databind.version>2.14.0</jackson.databind.version>
    <jackson.version>2.14.0</jackson.version>
    <junit.jupiter.version>5.9.1</junit.jupiter.version>
    <kafka.version>3.2.2</kafka.version>
    <log4j.version>2.19.0</log4j.version>
    <maven.compiler.source>${target.java.version}</maven.compiler.source>
    <maven.compiler.target>${target.java.version}</maven.compiler.target>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <target.java.version>11</target.java.version>
</properties>

@Amir Hossein Sharifzadeh Have you tried changing the scope of the Flink core deps to

provided

? https://nightlies.apache.org/flink/flink-docs-release-1.13/docs/dev/datastream/project-configuration/#setting-up-a-project-basic-dependencies It’s generally recommended to use

provided

instead of

compile

scope for core Flink dependencies. Sometimes,

ClassDefNotFoundError

can arise from two different versions of the same dependency on the class path. Changing to

provided

might avoid that happening.