Bdtjtk

I have a library module that I created through Maven, there is pom.xml what get dependencies:

<?xml version="1.0" encoding="UTF-8"?>

<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>



<parent>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-starter-parent</artifactId>

    <version>1.5.18.RELEASE</version>

    <relativePath/> <!-- lookup parent from repository -->

</parent>



<groupId>com.example.library</groupId>

<artifactId>commons</artifactId>

<version>1.0.0</version>

<packaging>jar</packaging>



<name>commons</name>

<description>common dependencies library</description>



<properties>

    <java.version>1.8</java.version>

</properties>



<dependencies>

    <dependency>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-web</artifactId>

    </dependency>

<build>

    <plugins>

        <plugin>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-maven-plugin</artifactId>

        </plugin>

    </plugins>

</build>



</project>

With the above pom, I successfully installed it into the local maven repository by using mvn install.

In another project my-service, which uses this installed library, within the IntelliJ IDEA, it is fine compiling and running. There is the pom.xml for the my-service

<?xml version="1.0" encoding="UTF-8"?>

<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>com.example</groupId>

    <artifactId>my-service</artifactId>

    <version>0.0.1-SNAPSHOT</version>

    <packaging>jar</packaging>



    <name>my-service</name>

    <description>My Services</description>



    <parent>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-parent</artifactId>

        <version>1.5.18.RELEASE</version>

        <relativePath/> <!-- lookup parent from repository -->

    </parent>



    <properties>

        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

        <java.version>1.8</java.version>

    </properties>



    <dependencies>

        <!-- other dependencies ... -->



        <dependency>

            <groupId>com.example.library</groupId>

            <artifactId>commons</artifactId>

            <version>1.0.0</version>

        </dependency>



    <build>

        <plugins>

            <plugin>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>

        </plugins>

    </build>

</project>

However, when running with mvn compile, I got the following errors:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project my-service: Compilation failure: Compilation failure:

[ERROR] /Users/doe/IdeaProjects/my-service/src/main/java/com/example/myservice/configs/WebSecurityConfig.java:[3,45] package com.example.library.commons.filters does not exist

[ERROR] /Users/doe/IdeaProjects/my-service/src/main/java/com/example/myservice/configs/WebSecurityConfig.java:[17,13] cannot find symbol

[ERROR] symbol:   class SessionFilter

[ERROR] location: class com.example.myservice.configs.WebSecurityConfig

[ERROR] /Users/doe/IdeaProjects/my-service/src/main/java/com/example/myservice/configs/WebSecurityConfig.java:[19,36] cannot find symbol

[ERROR] symbol:   class SessionFilter

[ERROR] location: class com.example.myservice.configs.WebSecurityConfig

The library project is created as part of the IntelliJ IDEA module within the same project as the my-service module. I guess the IntelliJ IDEA knows how to internally references module to compile the depending modules, but with Maven, it is a different story.

My goal is to compile and package the my-service module as a single jar that includes the commons library module. Now I can't even get it to compile with Maven, what did I do wrong?

Apache Maven version 3.3.9 . Operating system: OS X.

It turns out the Spring-boot-maven plugin is not needed in the library project because a library doesn't need to produce an executable ueber jar. After removing the plugin, it compiles successfully.