Paper/pom.xml

<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>org.bukkit</groupId>
    <artifactId>craftbukkit</artifactId>
    <packaging>jar</packaging>
    <version>1.15.2-R0.1-SNAPSHOT</version>
    <name>CraftBukkit</name>
    <url>https://www.spigotmc.org/</url>

    <properties>
        <skipTests>true</skipTests>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <api.version>unknown</api.version>
        <minecraft.version>1.15.2</minecraft.version>
        <minecraft_version>1_15_R1</minecraft_version>
        <buildtag.prefix>git-Bukkit-</buildtag.prefix>
        <buildtag.suffix></buildtag.suffix>
        <maven.build.timestamp.format>yyyyMMdd-HHmm</maven.build.timestamp.format>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.bukkit</groupId>
            <artifactId>bukkit</artifactId>
            <version>${project.version}</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.spigotmc</groupId>
            <artifactId>minecraft-server</artifactId>
            <version>${minecraft.version}-SNAPSHOT</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>jline</groupId>
            <artifactId>jline</artifactId>
            <version>2.12.1</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.ow2.asm</groupId>
            <artifactId>asm</artifactId>
            <version>7.3.1</version>
            <scope>compile</scope>
        </dependency>
        <!-- deprecated API depend -->
        <dependency>
            <groupId>com.googlecode.json-simple</groupId>
            <artifactId>json-simple</artifactId>
            <version>1.1.1</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.xerial</groupId>
            <artifactId>sqlite-jdbc</artifactId>
            <version>3.30.1</version>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.48</version>
            <scope>runtime</scope>
        </dependency>
        <!-- testing -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.hamcrest</groupId>
            <artifactId>hamcrest-library</artifactId>
            <version>1.3</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <repositories>
        <!--
            If you are a plugin developer, please use https://hub.spigotmc.org/nexus/content/repositories/snapshots/
            as your repository URL. This will ensure only Bukkit / Spigot-API are pulled from our Maven repository.

            Please see https://www.spigotmc.org/go/maven for more information.
        -->
        <repository>
            <id>spigotmc-public</id>
            <url>https://hub.spigotmc.org/nexus/content/groups/public/</url>
        </repository>
    </repositories>

    <pluginRepositories>
        <pluginRepository>
            <id>spigotmc-public</id>
            <url>https://hub.spigotmc.org/nexus/content/groups/public/</url>
        </pluginRepository>
    </pluginRepositories>

    <!-- This builds a completely 'ready to start' jar with all dependencies inside -->
    <build>
        <plugins>
            <plugin>
                <groupId>net.md-5</groupId>
                <artifactId>scriptus</artifactId>
                <version>0.3.2</version>
                <configuration>
                    <format>git-Bukkit-%s</format>
                </configuration>
                <executions>
                    <execution>
                        <phase>initialize</phase>
                        <goals>
                            <goal>describe</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>2.4</version>
                <configuration>
                    <archive>
                        <manifestEntries>
                            <Main-Class>org.bukkit.craftbukkit.Main</Main-Class>
                            <Implementation-Title>CraftBukkit</Implementation-Title>
                            <Implementation-Version>${describe}</Implementation-Version>
                            <Implementation-Vendor>${maven.build.timestamp}</Implementation-Vendor>
                            <Specification-Title>Bukkit</Specification-Title>
                            <Specification-Version>${api.version}</Specification-Version>
                            <Specification-Vendor>Bukkit Team</Specification-Vendor>
                        </manifestEntries>
                        <manifestSections>
                            <manifestSection>
                                <name>net/bukkit/</name>
                                <manifestEntries>
                                    <Sealed>true</Sealed>
                                </manifestEntries>
                            </manifestSection>
                            <manifestSection>
                                <name>com/bukkit/</name>
                                <manifestEntries>
                                    <Sealed>true</Sealed>
                                </manifestEntries>
                            </manifestSection>
                            <manifestSection>
                                <name>org/bukkit/</name>
                                <manifestEntries>
                                    <Sealed>true</Sealed>
                                </manifestEntries>
                            </manifestSection>
                        </manifestSections>
                    </archive>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.2.1</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <createSourcesJar>${shadeSourcesJar}</createSourcesJar>
                            <relocations>
                                <!-- Cannot be relocated as it breaks translation property keys -->
                                <!--
                                <relocation>
                                    <pattern>joptsimple</pattern>
                                    <shadedPattern>org.bukkit.craftbukkit.libs.joptsimple</shadedPattern>
                                </relocation>
                                -->
                                <relocation>
                                    <pattern>jline</pattern>
                                    <shadedPattern>org.bukkit.craftbukkit.libs.jline</shadedPattern>
                                </relocation>
                                <relocation>
                                    <pattern>it.unimi</pattern>
                                    <shadedPattern>org.bukkit.craftbukkit.libs.it.unimi</shadedPattern>
                                </relocation>
                                <relocation>
                                    <pattern>org.apache.commons.codec</pattern>
                                    <shadedPattern>org.bukkit.craftbukkit.libs.org.apache.commons.codec</shadedPattern>
                                </relocation>
                                <relocation>
                                    <pattern>org.apache.commons.io</pattern>
                                    <shadedPattern>org.bukkit.craftbukkit.libs.org.apache.commons.io</shadedPattern>
                                </relocation>
                                <relocation>
                                    <pattern>org.apache.commons.lang3</pattern>
                                    <shadedPattern>org.bukkit.craftbukkit.libs.org.apache.commons.lang3</shadedPattern>
                                </relocation>
                                <relocation>
                                    <pattern>org.objectweb.asm</pattern>
                                    <shadedPattern>org.bukkit.craftbukkit.libs.org.objectweb.asm</shadedPattern>
                                </relocation>
                                <relocation>
                                    <pattern>org.bukkit.craftbukkit</pattern>
                                    <shadedPattern>org.bukkit.craftbukkit.v${minecraft_version}</shadedPattern>
                                    <excludes>
                                        <exclude>org.bukkit.craftbukkit.Main*</exclude>
                                    </excludes>
                                </relocation>
                                <relocation>
                                    <pattern>net.minecraft.server</pattern>
                                    <shadedPattern>net.minecraft.server.v${minecraft_version}</shadedPattern>
                                </relocation>
                            </relocations>
                            <transformers>
                                <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                    <resource>META-INF/services/java.sql.Driver</resource>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <!-- we use the Eclipse compiler as it doesn't need a JDK -->
                    <compilerId>eclipse</compilerId>
                </configuration>
                <dependencies>
                    <!-- we need our custom version as it fixes some bugs on case sensitive file systems -->
                    <dependency>
                        <groupId>org.codehaus.plexus</groupId>
                        <artifactId>plexus-compiler-eclipse</artifactId>
                        <version>2.8.5-spigotmc</version>
                    </dependency>
                </dependencies>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.12.4</version>
                <configuration>
                    <workingDirectory>${basedir}/target/test-server</workingDirectory>
                    <excludes>
                        <exclude>org/bukkit/craftbukkit/inventory/ItemStack*Test.java</exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <profiles>
        <profile>
            <id>shadeSourcesJar</id>
            <properties>
                <shadeSourcesJar>true</shadeSourcesJar>
                <shadeSourcesContent>true</shadeSourcesContent>
            </properties>
        </profile>
        <profile>
            <id>development</id>
            <properties>
                <skipTests>false</skipTests>
            </properties>
            <build>
                <plugins>
                    <plugin>
                        <groupId>org.apache.maven.plugins</groupId>
                        <artifactId>maven-checkstyle-plugin</artifactId>
                        <version>3.1.0</version>
                        <executions>
                            <execution>
                                <phase>process-classes</phase>
                                <goals>
                                    <goal>check</goal>
                                </goals>
                            </execution>
                        </executions>
                        <configuration>
                            <configLocation>checkstyle.xml</configLocation>
                            <includeTestSourceDirectory>true</includeTestSourceDirectory>
                        </configuration>
                        <dependencies>
                            <dependency>
                                <groupId>com.puppycrawl.tools</groupId>
                                <artifactId>checkstyle</artifactId>
                                <version>8.29</version>
                            </dependency>
                        </dependencies>
                    </plugin>
                    <plugin>
                        <groupId>org.codehaus.mojo</groupId>
                        <artifactId>animal-sniffer-maven-plugin</artifactId>
                        <version>1.18</version>
                        <executions>
                            <execution>
                                <phase>process-classes</phase>
                                <goals>
                                    <goal>check</goal>
                                </goals>
                            </execution>
                        </executions>
                        <configuration>
                            <signature>
                                <groupId>org.codehaus.mojo.signature</groupId>
                                <artifactId>java18</artifactId>
                                <version>1.0</version>
                            </signature>
                        </configuration>
                    </plugin>
                </plugins>
            </build>
        </profile>
    </profiles>
</project>