java - Webclient maven Dependency errors? - Stack Overflow

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I have a mutli module maven project divided into the following modules: web, model, persistence and service. I have a serviceimpl in my service-module that should use the web client. However, I get the following error when starting the project:

Caused by: java.lang.ClassNotFoundException: ioty.channel.ChannelHandler at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) ~[na:na] at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) ~[na:na]

It's not because the dependency is missing, because it comes with the webflux-starter dependendy. Does anyone have an idea? Thanks in advance :)

I configure the web client on its own config file, which I also reference in my application file so that it is scanned.

I show you the different files here:

ServiceImpl:

    private final WebClient webClient;

    public BerufesucheServiceImpl(@Qualifier("paWebClient") WebClient webClient) {
        this.webClient = Objects.requireNonNull(webClient);
    }

the configfile, where I configure the webclient:

@Configuration
@ComponentScan(basePackages = {"de.mlp.pa.berufesuche.service.persistence"})
public class ServiceConfig {

    @Bean("paWebClient")
    public WebClient paWebClient() {
        HttpClient httpClient = HttpClient.create()
                press(true)
                .doOnConnected(connection -> connection
                        .addHandlerFirst(new ReadTimeoutHandler(180000, TimeUnit.MILLISECONDS))
                        .addHandlerFirst(new WriteTimeoutHandler(180000, TimeUnit.MILLISECONDS)));


        return WebClient.builder()
                .baseUrl("http://localhost:8082/berufe-enricher")
                .clientConnector(new ReactorClientHttpConnector(httpClient))
                .build();
    }
}

the pom from my servicemodule:

<project xmlns=".0.0" xmlns:xsi=";
         xsi:schemaLocation=".0.0 .xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>de.mlp.pa.berufesuche</groupId>
        <artifactId>berufesuche-parent</artifactId>
        <version>1.0.0-SNAPSHOT</version>
    </parent>
    <artifactId>berufesuche-service</artifactId>

    <dependencies>
        <dependency>
            <groupId>de.mlp.pa.berufesuche</groupId>
            <artifactId>berufesuche-model</artifactId>
        </dependency>

        <!-- Spring Boot -->
        <dependency>
            <groupId>.springframework.boot</groupId>
            <artifactId>spring-boot-starter-webflux</artifactId>
        </dependency>


        <!-- Spring -->
        <dependency>
            <groupId>.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
        </dependency>

    </dependencies>

</project>

the parent-pom:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns=".0.0" xmlns:xsi=";
         xsi:schemaLocation=".0.0 .0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>de.mlp.pa.berufesuche</groupId>
    <artifactId>berufesuche-parent</artifactId>
    <version>1.0.0-SNAPSHOT</version>
    <packaging>pom</packaging>

    <modules>
        <module>berufesuche-web</module>
        <module>berufesuche-persistence</module>
        <module>berufesuche-model</module>
        <module>berufesuche-service</module>
    </modules>

    <properties>
        <!-- Compiler Properties -->
        <java.version>21</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

        <!-- dependency versions -->
        <springboot.version>3.4.2</springboot.version>

        <!-- Plugin Versions -->
        <maven-compiler-plugin.version>3.13.0</maven-compiler-plugin.version>
        <maven-clean-plugin.version>3.4.0</maven-clean-plugin.version>
        <maven-source-plugin.version>3.3.1</maven-source-plugin.version>
        <maven-surefire-plugin-version>3.5.2</maven-surefire-plugin-version>
        <maven-dependency-plugin.version>3.8.1</maven-dependency-plugin.version>
        <dependency-check-maven.version>10.0.4</dependency-check-maven.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <!-- Project internal dependencies -->
            <dependency>
                <groupId>de.mlp.pa.berufesuche</groupId>
                <artifactId>berufesuche-web</artifactId>
                <version>${project.version}</version>
            </dependency>
            <dependency>
                <groupId>de.mlp.pa.berufesuche</groupId>
                <artifactId>berufesuche-persistence</artifactId>
                <version>${project.version}</version>
            </dependency>
            <dependency>
                <groupId>de.mlp.pa.berufesuche</groupId>
                <artifactId>berufesuche-model</artifactId>
                <version>${project.version}</version>
            </dependency>
            <dependency>
                <groupId>de.mlp.pa.berufesuche</groupId>
                <artifactId>berufesuche-service</artifactId>
                <version>${project.version}</version>
            </dependency>

            <!-- Spring Boot -->
            <dependency>
                <groupId>.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${springboot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>


        <!-- Testing dependencies -->
        <dependency>
            <groupId>.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>.apache.maven.plugins</groupId>
                    <artifactId>maven-source-plugin</artifactId>
                    <version>${maven-source-plugin.version}</version>
                    <executions>
                        <execution>
                            <id>attach-sources</id>
                            <phase>verify</phase>
                            <goals>
                                <goal>jar-no-fork</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
                <plugin>
                    <groupId>.apache.maven.plugins</groupId>
                    <artifactId>maven-clean-plugin</artifactId>
                    <version>${maven-clean-plugin.version}</version>
                    <configuration>
                        <filesets>
                            <fileset>
                                <directory>src/main/generated/</directory>
                                <includes>
                                    <include>*</include>
                                </includes>
                            </fileset>
                        </filesets>
                    </configuration>
                </plugin>
                <plugin>
                    <groupId>.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <version>${springboot.version}</version>
                    <executions>
                        <execution>
                            <goals>
                                <goal>repackage</goal>
                            </goals>
                            <configuration>
                                <classifier>spring-boot</classifier>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>
                <plugin>
                    <groupId>.apache.maven.plugins</groupId>
                    <artifactId>maven-dependency-plugin</artifactId>
                    <version>${maven-dependency-plugin.version}</version>
                    <executions>
                        <execution>
                            <goals>
                                <goal>properties</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
                <plugin>
                    <groupId>.apache.maven.plugins</groupId>
                    <artifactId>maven-surefire-plugin</artifactId>
                    <version>${maven-surefire-plugin-version}</version>
                    <configuration>
                        <includes>
                            <include>**/*Test.java</include>
                            <include>**/*IT.java</include>
                        </includes>
                        <!-- This fixes the problem of dynamic agent loading in jdk21+ -->
                        <argLine>
                            @{argLine} -Xms1G -Xmx4G -javaagent:${.mockito:mockito-core:jar}
                        </argLine>
                    </configuration>
                </plugin>
                <plugin>
                    <groupId>.owasp</groupId>
                    <artifactId>dependency-check-maven</artifactId>
                    <version>${dependency-check-maven.version}</version>
                    <executions>
                        <execution>
                            <goals>
                                <goal>check</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </pluginManagement>
        <plugins>
            <plugin>
                <groupId>.apache.maven.plugins</groupId>
                <artifactId>maven-clean-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>.jacoco</groupId>
                <artifactId>jacoco-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

    <profiles>
        <profile>
            <id>OWASP</id>
            <build>
                <plugins>
                    <plugin>
                        <groupId>.owasp</groupId>
                        <artifactId>dependency-check-maven</artifactId>
                    </plugin>
                </plugins>
            </build>
        </profile>
    </profiles>


</project>

the applicationfile, where I import ther configfile:

@SpringBootApplication
@Import(value = {
        PersistenceConfig.class,
        ServiceConfig.class,
        WebConfig.class,
})
public class BerufesucheApplication {

    public static void main(String[] args) {
        SpringApplication.run(BerufesucheApplication.class, args);
    }

}

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