maven doesn't pack lib to jar

Question

I have the next situation

git clone https://github.com/Ozey/telegramBot
cd telegramBot
./start.sh

and get the next error
[INFO] ------------------------------------------------------------------------
Test!
Exception in thread "main" java.lang.NoClassDefFoundError: org/telegram/telegrambots/bots/TelegramLongPollingBot

can't understand why this lib isn't in jar file

Answer 1

try this one:

<?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>MyFirstProject</groupId>
<artifactId>MyFirstProject</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>

<name>MyFirstProject</name>

<properties>
    <jdk.version>1.8</jdk.version>
</properties>

<repositories>
    <repository>
        <id>jitpack.io</id>
        <url>https://jitpack.io</url>
    </repository>
</repositories>



<dependencies>
    <dependency>
        <groupId>com.github.rubenlagus</groupId>
        <artifactId>TelegramBots</artifactId>
        <version>v2.3.3.3</version>
    </dependency>

    <dependency>
        <groupId>org.twitter4j</groupId>
        <artifactId>twitter4j-core</artifactId>
        <version>4.0.4</version>
    </dependency>
</dependencies>


<build>
    <plugins>
        <plugin>
            <artifactId>maven-dependency-plugin</artifactId>
            <executions>
                <execution>
                    <phase>install</phase>
                    <goals>
                        <goal>copy-dependencies</goal>
                    </goals>
                    <configuration>
                      <includeScope>runtime</includeScope>
                      <outputDirectory>${project.build.directory}/lib/</outputDirectory>
                    </configuration>
                </execution>
            </executions>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>2.3.2</version>
            <configuration>
                <source>${jdk.version}</source>
                <target>${jdk.version}</target>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <version>2.6</version>
            <configuration>
              <archive>
                <manifest>
                    <addClasspath>true</addClasspath>
                    <mainClass>api.Test</mainClass>
                    <classpathPrefix>lib/</classpathPrefix>
                </manifest>
              </archive>
            </configuration>
          </plugin>
    </plugins>
</build>

Answer 2

Add this plugin to your project pom.xml

<plugin>
                <artifactId>maven-dependency-plugin</artifactId>
                <executions>
                    <execution>
                        <phase>install</phase>
                        <goals>
                            <goal>copy-dependencies</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>WebContent/WEB-INF/lib</outputDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

This will copy all libraries into lib folder when you will run mvn clean install command. when you will generate final jar or war, you will get all the libraries