I am new to Helidon MP and i am getting an error while trying to write logic for file reading, below are the details for the same :
Compilation Error :
The type io.helidon.media.common.MessageBodyReadableContent cannot be resolved. It is indirectly referenced from required .class files
Code/Logic
@Path("/list/upload")
@POST
@Produces(MediaType.APPLICATION_JSON)
public void uploadHeaders(ServerRequest req, ServerResponse res) {
req.content().as(MultiPart.class).thenAccept(multiPart -> {
for(BodyPart bodyPart : multiPart.bodyParts()){
String content = bodyPart.as(String.class);
System.out.println("Part:\n" + content);
}
});
}
Pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (c) 2018, 2019 Oracle and/or its affiliates. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>codes.recursive</groupId>
<artifactId>telenet-helidon-mp-poc</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>${project.artifactId}</name>
<properties>
<helidon.version>1.1.1</helidon.version>
<mainClass>codes.recursive.cnms.user.Main</mainClass>
<exec.mainClass>${mainClass}</exec.mainClass>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>${maven.compiler.source}</maven.compiler.target>
<libs.classpath.prefix>libs</libs.classpath.prefix>
<copied.libs.dir>${project.build.directory}/${libs.classpath.prefix}</copied.libs.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<argLine>-Dfile.encoding=UTF-8</argLine>
<checkstyle.config.location>etc/checkstyle.xml</checkstyle.config.location>
</properties>
<build>
<finalName>${project.artifactId}</finalName>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
</plugin>
<plugin>
<groupId>org.jboss.jandex</groupId>
<artifactId>jandex-maven-plugin</artifactId>
<version>1.0.6</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
<dependencies>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-surefire-provider</artifactId>
<version>1.1.0</version>
</dependency>
</dependencies>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.9</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.5</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>${libs.classpath.prefix}</classpathPrefix>
<mainClass>${mainClass}</mainClass>
<useUniqueVersions>false</useUniqueVersions>
</manifest>
</archive>
</configuration>
</plugin>
<!--This plugin's configuration is used to store Eclipse m2e settings only. It has no influence on the Maven build itself.-->
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>
org.jboss.jandex
</groupId>
<artifactId>
jandex-maven-plugin
</artifactId>
<versionRange>
[1.0.6,)
</versionRange>
<goals>
<goal>jandex</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore></ignore>
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${copied.libs.dir}</outputDirectory>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>false</overWriteSnapshots>
<overWriteIfNewer>true</overWriteIfNewer>
<overWriteIfNewer>true</overWriteIfNewer>
<includeScope>runtime</includeScope>
<excludeScope>test</excludeScope>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.jboss.jandex</groupId>
<artifactId>jandex-maven-plugin</artifactId>
<executions>
<execution>
<id>make-index</id>
<goals>
<goal>jandex</goal>
</goals>
<phase>process-classes</phase>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>io.helidon</groupId>
<artifactId>helidon-bom</artifactId>
<version>${helidon.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.jboss</groupId>
<artifactId>jandex</artifactId>
<version>2.1.1.Final</version>
</dependency>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>javax.activation-api</artifactId>
<version>1.2.0</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.0.1</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.0.1</version>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-all</artifactId>
<version>1.3</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-binding</artifactId>
<version>2.26</version>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>io.helidon.microprofile.bundles</groupId>
<artifactId>helidon-microprofile-1.2</artifactId>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-binding</artifactId>
</dependency>
<dependency>
<groupId>org.jboss</groupId>
<artifactId>jandex</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>javax.activation-api</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>javax.persistence</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.4.3.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator</artifactId>
<version>6.1.4.Final</version>
</dependency>
<dependency>
<groupId>javax.el</groupId>
<artifactId>el-api</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>org.glassfish.web</groupId>
<artifactId>javax.el</artifactId>
<version>2.2.6</version>
</dependency>
<dependency>
<groupId>com.oracle.ojdbc</groupId>
<artifactId>ojdbc8</artifactId>
<version>19.3.0.0</version>
</dependency>
<dependency>
<groupId>com.oracle.jdbc</groupId>
<artifactId>oraclepki</artifactId>
<version>18.3.0.0</version>
</dependency>
<dependency>
<groupId>com.oracle.jdbc</groupId>
<artifactId>osdt_core</artifactId>
<version>18.3.0.0</version>
</dependency>
<dependency>
<groupId>com.oracle.jdbc</groupId>
<artifactId>osdt_cert</artifactId>
<version>18.3.0.0</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-jackson</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/io.helidon.media/helidon-media-multipart -->
<dependency>
<groupId>io.helidon.media</groupId>
<artifactId>helidon-media-multipart</artifactId>
<version>2.1.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/io.helidon.webserver/helidon-webserver -->
<dependency>
<groupId>io.helidon.webserver</groupId>
<artifactId>helidon-webserver</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/io.helidon.media/helidon-media-common -->
<dependency>
<groupId>io.helidon.media</groupId>
<artifactId>helidon-media-common</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/io.helidon.common/helidon-common -->
<dependency>
<groupId>io.helidon.common</groupId>
<artifactId>helidon-common</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/io.helidon.webclient/helidon-webclient -->
<dependency>
<groupId>io.helidon.webclient</groupId>
<artifactId>helidon-webclient</artifactId>
<version>2.1.0</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/io.helidon.webserver/helidon-webserver -->
<dependency>
<groupId>io.helidon.webserver</groupId>
<artifactId>helidon-webserver</artifactId>
<version>2.1.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/io.helidon.media/helidon-media-project -->
<dependency>
<groupId>io.helidon.media</groupId>
<artifactId>helidon-media-project</artifactId>
<version>2.1.0</version>
<type>pom</type>
</dependency>
<!-- https://mvnrepository.com/artifact/io.helidon.media.jackson/helidon-media-jackson-common -->
<dependency>
<groupId>io.helidon.media.jackson</groupId>
<artifactId>helidon-media-jackson-common</artifactId>
<version>2.0.0-M3</version>
</dependency>
</dependencies>
</project>
Since you are using the Helidon BOM (aka. Bill-of-Material), you shouldn't be declaring explicit versions for sub-modules (
helidon-media-xxx
in this case) otherwise you will fall into incompatibility issues, as the one you are facing.In your
dependencyManagement
section, you declaredhelidon-bom
as a POM import:The
helidon.version
should be the only version declared for allhelidon-xxx
artifacts (note that concrete artifacts versions could be different under the hood but that would be managed within the BOM itself and you should not play with that).Here what the dependencies section would look like with all
helidon-xxx
artifacts versions omitted: