Moditect Vert.x Web Example

Hi,

I’m currently trying to setup a Vert.x Web example which uses the maven plugin and add-module-info to generate the module descriptors so that I can build a runtime image.

For Vert.x core this works without any issue but once I add Vert.x Web I ran into a strange issue.

Somehow moditect is picking up a dependency which is not actually part of the dependency tree.

This might happen because Vert.x web has a pom dependency/managed dependency but I’m not sure. I tried to explicitly adding the groovy dependency to my project and also provide a module configuration for it but that did not work.

[ERROR] Failed to execute goal org.moditect:moditect-maven-plugin:1.0.0.Beta1:add-module-info (add-module-info-to-dependencies) on project vertx-graalvm-native-image-test-app: 
Execution add-module-info-to-dependencies of goal org.moditect:moditect-maven-plugin:1.0.0.Beta1:add-module-info failed: 
Unable to derive module descriptor for /home/jotschi/.m2/repository/org/codehaus/groovy/groovy-all/2.4.7/groovy-all-2.4.7.jar: 
Provider class moduleName=groovy-all not in module -> [Help 1]

Any hint would be appreciated. We are also discussing the issue within this Vert.x Thread: https://groups.google.com/forum/#!topic/vertx/uIUAMaZLaec

A reproducer can be found in my vertx-graalvm-native-image-test repo within the dev-moditect branch.

https://github.com/Jotschi/vertx-graalvm-native-image-test/tree/dev-moditect

[jeremy-florte]

Hi, the example your provided (thank a lot by the way) works until a Vert.x version <= 3.8.0. From Vert.X version 3.8.1, Netty version uses some graalvm dependencies to be able to produce native images and it requires some updates.

NB: Change comes from Netty version 4.1.36.Final

Here is a “minimal” pom I tried:

<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>de.jotschi.vertx</groupId>
    <artifactId>vertx-moditect-jlink-example</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <properties>
        <!-- marker: last working version = 3.8.0 / breaking = 3.8.1 -->
        <vertx.version>3.9.1</vertx.version>
        <svm.version>19.0.0</svm.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>io.vertx</groupId>
            <artifactId>vertx-web</artifactId>
            <version>${vertx.version}</version>
        </dependency>

    </dependencies>

    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.8.1</version>
                    <configuration>
                        <release>11</release>
                        <compilerArgs>
                            <compilerArg>--module-path</compilerArg>
                            <compilerArg>${project.build.directory}/modules</compilerArg>
                        </compilerArgs>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>

        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
            </plugin>

            <plugin>
                <groupId>org.moditect</groupId>
                <artifactId>moditect-maven-plugin</artifactId>
                <version>1.0.0.RC1</version>
                <executions>
                    <execution>
                        <id>add-module-info-to-dependencies</id>
                        <phase>package</phase>
                        <configuration>
                            <outputDirectory>${project.build.directory}/modules</outputDirectory>
                            <modules>
                                <module>
                                    <artifact>
                                        <groupId>com.fasterxml.jackson.core</groupId>
                                        <artifactId>jackson-core</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>com.fasterxml.jackson.core</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>com.fasterxml.jackson.core</groupId>
                                        <artifactId>jackson-annotations</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>com.fasterxml.jackson.annotations</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>com.fasterxml.jackson.core</groupId>
                                        <artifactId>jackson-databind</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>com.fasterxml.jackson.databind</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>com.oracle.substratevm</groupId>
                                        <artifactId>svm</artifactId>
                                        <version>${svm.version}</version>
                                    </artifact>
                                    <moduleInfo>
                                        <name>svm</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>io.netty</groupId>
                                        <artifactId>netty-common</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>io.netty.common</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>io.netty</groupId>
                                        <artifactId>netty-buffer</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>io.netty.buffer</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>io.netty</groupId>
                                        <artifactId>netty-codec</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>io.netty.codec</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>io.netty</groupId>
                                        <artifactId>netty-resolver</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>io.netty.resolver</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>io.netty</groupId>
                                        <artifactId>netty-transport</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>io.netty.transport</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>io.netty</groupId>
                                        <artifactId>netty-codec-dns</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>io.netty.codec.dns</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>io.netty</groupId>
                                        <artifactId>netty-codec-http2</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>io.netty.codec.http2</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>io.netty</groupId>
                                        <artifactId>netty-resolver-dns</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>io.netty.resolver.dns</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>io.netty</groupId>
                                        <artifactId>netty-handler</artifactId>
                                    </artifact>
                                    <moduleInfoSource>
                                        module io.netty.handler {
                                        exports io.netty.handler.flow;
                                        exports io.netty.handler.flush;
                                        exports io.netty.handler.ipfilter;
                                        exports io.netty.handler.logging;
                                        exports io.netty.handler.ssl;
                                        exports io.netty.handler.ssl.ocsp;
                                        exports io.netty.handler.ssl.util;
                                        exports io.netty.handler.stream;
                                        exports io.netty.handler.timeout;
                                        exports io.netty.handler.traffic;
                                        }
                                    </moduleInfoSource>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>io.netty</groupId>
                                        <artifactId>netty-codec-socks</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>io.netty.codec.socks</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>io.netty</groupId>
                                        <artifactId>netty-handler-proxy</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>io.netty.handler.proxy</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>io.netty</groupId>
                                        <artifactId>netty-codec-http</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>io.netty.codec.http</name>
                                    </moduleInfo>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>io.vertx</groupId>
                                        <artifactId>vertx-web</artifactId>
                                    </artifact>
                                    <moduleInfoSource>
                                        open module vertx.web {
                                        requires vertx.core;
                                        requires io.netty.codec.http;

                                        exports io.vertx.ext.web;
                                        exports io.vertx.ext.web.handler;
                                        exports io.vertx.ext.web.impl;
                                        }
                                    </moduleInfoSource>
                                </module>
                                <module>
                                    <artifact>
                                        <groupId>io.vertx</groupId>
                                        <artifactId>vertx-core</artifactId>
                                    </artifact>
                                    <moduleInfo>
                                        <name>vertx.core</name>
                                        <requires>
                                            static log4j.api;
                                            static log4j;
                                            static slf4j.api;
                                            *;
                                        </requires>
                                        <exports>
                                            *;
                                        </exports>
                                        <uses>
                                            io.vertx.core.spi.VertxFactory;
                                            io.vertx.core.spi.VerticleFactory;
                                            io.vertx.core.spi.FutureFactory;
                                            io.vertx.core.spi.BufferFactory;
                                        </uses>
                                    </moduleInfo>
                                </module>
                            </modules>
                            <module>
                                <mainClass>de.jotschi.vertx.example.Runner</mainClass>
                                <moduleInfo>
                                    <name>de.jotschi.vertx.example</name>
                                    <exports>
                                        de.jotschi.vertx.example to io.vertx.core;
                                    </exports>
                                </moduleInfo>
                            </module>
                            <jdepsExtraArgs>
                                <arg>--multi-release</arg>
                                <arg>11</arg>
                            </jdepsExtraArgs>
                        </configuration>
                        <goals>
                            <goal>add-module-info</goal>
                        </goals>
                    </execution>
                    <execution>
                        <id>create-runtime-image</id>
                        <phase>package</phase>
                        <goals>
                            <goal>create-runtime-image</goal>
                        </goals>
                        <configuration>
                            <modulePath>
                                <path>${project.build.directory}/modules</path>
                            </modulePath>
                            <modules>
                                <module>de.jotschi.vertx.example</module>
                            </modules>
                            <launcher>
                                <name>helloWorld</name>
                                <module>de.jotschi.vertx.example</module>
                            </launcher>
                            <compression>2</compression>
                            <stripDebug>true</stripDebug>
                             <outputDirectory>${project.build.directory}/jlink-image</outputDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

I tried several things but I’m stuck with this issue:

Execution add-module-info-to-dependencies of goal org.moditect:moditect-maven-plugin:1.0.0.RC1:add-module-info failed: Module format not recognized: /home/jflorte/.m2/repository/com/oracle/substratevm/svm-hosted-native-linux-amd64/19.0.0/svm-hosted-native-linux-amd64-19.0.0.tar.gz

It seems it tries to enrich a transitive dependency from com.oracle.substratevm:svm:19.0.0 but I don’t know how to prevent the plugin from doing so.

If you have any idea, I’d be happy to investigate.

For the record, I also tried with newer versions of Vert.X. Jackson definition can be removed because they added module-info.java files. But the svm (and then asm) issue is still a blocker to me.

[gunnarmorling]

Cool, thanks for the heads-up!