Using Maven to generate "fat" jars or "uber" jars

 This one worked for me:

http://tutorials.jenkov.com/maven/maven-build-fat-jar.html

Here are other ways to do it:

https://mkyong.com/maven/how-to-create-a-jar-file-with-maven/

Remember to put the xml outside of pluginManagement

https://stackoverflow.com/questions/33261354/maven-copy-dependecies-not-working

If you have some jars referenced as external jars, you can try this: (didn't work for me)

https://programmersought.com/article/90075878511/

Some useful background info:

https://imagej.net/Uber-JAR

What works for me:

<build>

<finalName>icommogateway</finalName>

<pluginManagement>

<!-- lock down plugins versions to avoid using Maven defaults (may be 

moved to parent pom) -->

</pluginManagement>

<plugins>

<!-- download source code in Eclipse, best practice -->

<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-eclipse-plugin</artifactId>

<version>2.9</version>

<configuration>

<downloadSources>true</downloadSources>

<downloadJavadocs>false</downloadJavadocs>

<dependencySets>

<dependencySet>

<excludes>

<exclude>log4j:log4j</exclude>

</excludes>

</dependencySet>

</dependencySets>

</configuration>

</plugin>

<!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->

<plugin>

<artifactId>maven-clean-plugin</artifactId>

<version>3.1.0</version>

</plugin>

<plugin>

<artifactId>maven-compiler-plugin</artifactId>

<version>3.8.0</version>

<configuration>

<source>1.7</source>

<target>1.7</target>

<compilerArgs>

<!-- The parameter name and the parameter value appear in pairs, that 

is, the first is the name, and the second is the value -->

<arg>-extdirs</arg>

<arg>M:/Development/Unica/Interact/912/interact.jar</arg>

</compilerArgs>

</configuration>

</plugin>

<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-assembly-plugin</artifactId>

<version>3.1.1</version>

<configuration>

<descriptorRefs>

<descriptorRef>jar-with-dependencies</descriptorRef>

</descriptorRefs>

</configuration>

<executions>

<execution>

<id>make-assembly</id>

<phase>package</phase>

<goals>

<goal>single</goal>

</goals>

</execution>

</executions>

</plugin>

</plugins>

</build>

To exclude some jars:

https://stackoverflow.com/questions/42412964/maven-depenency-plugin-copy-dependencies-exclude-single-artifact

https://github.com/albertattard/how-to-exclude-dependencies-from-maven-assembly-plugin/blob/master/pom.xml

https://blog.csdn.net/yh_zeng2/article/details/82859914