root
    - libs
        - [companyname] <-- 3rd party libs
    - src
        - main
            - ....
    - pom.xml

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.0.5.RELEASE</version>
</parent>

<dependencies>
    <!-- Libs from official repos -->
    <dependency>
        ...
    </dependency>

    ...

    <!-- These 80+ secret 3rd party libs with no repo -->
    <dependency>
        <groupId>...</groupId>
        <artifactId>...<artifactId>
        <version>1.0.0.10</version>
        <scope>system</scope>
        <systemPath>${project.basedir}/libs/[companyname]/artifactName-1.0.0.10.jar</systemPath>
    </dependency>
</dependencies>

<build>
    <resources>
        <resource>
            <directory>libs/[companyname]/**</directory>
            <filtering>true</filtering>
            <includes>
                <include>*.jar</include>
            </includes>
        </resource>
    </resources>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <configuration>
                <mainClass>my main class name / namespace</mainClass>
                <layout>JAR</layout>
            </configuration>
        </plugin>
        <!--
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>3.2.1</version>
            <configuration>
                <minimizeJar>false</minimizeJar>
                <transformers>
                    <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                        <resource>META-INF/spring.handlers</resource>
                    </transformer>
                    <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                        <resource>META-INF/spring.schemas</resource>
                    </transformer>
                    <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                        <resource>META-INF/spring.factories</resource>
                    </transformer>
                </transformers>

            </configuration>
        </plugin>
        -->
    </plugins>
</build>