Here you are, this is the pom you can use for your project, pay attention to the sections:
<products>..</products>
Here you have to specify your datasource
<applications>...</applications>
Here you specify the product for which you want to make the plugin, in this case I use Jira Software, without this section you get only Jira Core that it is not enough, if you want to develop plugins for other product see here.
Last you have to create a folder into your resources folder with the name jira-home and put dbconfig.xml file there.
Due to file extension resctriction i cannot upload xml files, I put here inline
pom.xml
<?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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.plugins.check</groupId>
<artifactId>checks-plugin</artifactId>
<version>1.0.0-SNAPSHOT</version>
<organization>
<name>Example Company</name>
<url>http://www.example.com/</url>
</organization>
<name>checks-plugin</name>
<description>This is the com.plugins.check:checks-plugin plugin for Atlassian JIRA.</description>
<packaging>atlassian-plugin</packaging>
<dependencies>
<dependency>
<groupId>com.atlassian.jira</groupId>
<artifactId>jira-api</artifactId>
<version>${jira.version}</version>
<scope>provided</scope>
</dependency>
<!-- Add dependency on jira-core if you want access to JIRA implementation classes as well as the sanctioned API. -->
<!-- This is not normally recommended, but may be required eg when migrating a plugin originally developed against JIRA 4.x -->
<dependency>
<groupId>com.atlassian.jira</groupId>
<artifactId>jira-core</artifactId>
<version>${jira.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.atlassian.plugin</groupId>
<artifactId>atlassian-spring-scanner-annotation</artifactId>
<version>${atlassian.spring.scanner.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.atlassian.plugin</groupId>
<artifactId>atlassian-spring-scanner-runtime</artifactId>
<version>${atlassian.spring.scanner.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
<scope>provided</scope>
</dependency>
<!-- WIRED TEST RUNNER DEPENDENCIES -->
<dependency>
<groupId>com.atlassian.plugins</groupId>
<artifactId>atlassian-plugins-osgi-testrunner</artifactId>
<version>${plugin.testrunner.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>jsr311-api</artifactId>
<version>1.1.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.2.2-atlassian-1</version>
</dependency>
<!-- Uncomment to use TestKit in your project. Details at https://bitbucket.org/atlassian/jira-testkit -->
<!-- You can read more about TestKit at https://developer.atlassian.com/display/JIRADEV/Plugin+Tutorial+-+Smarter+integration+testing+with+TestKit -->
<!--
<dependency>
<groupId>com.atlassian.jira.tests</groupId>
<artifactId>jira-testkit-client</artifactId>
<version>${testkit.version}</version>
<scope>test</scope>
</dependency>
-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.4</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.6.6</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.1.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>1.8.5</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.atlassian.templaterenderer</groupId>
<artifactId>atlassian-template-renderer-api</artifactId>
<version>2.0.0</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.postgresql/postgresql -->
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>42.2.12</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>com.atlassian.maven.plugins</groupId>
<artifactId>jira-maven-plugin</artifactId>
<version>${amps.version}</version>
<extensions>true</extensions>
<configuration>
<productVersion>${jira.version}</productVersion>
<productDataVersion>${jira.version}</productDataVersion>
<instanceId>jira</instanceId>
<products>
<product>
<id>jira</id>
<instanceId>jira</instanceId>
<version>${jira.version}</version>
<dataPath>${basedir}/src/main/resources/jira-home</dataPath>
<dataSources>
<dataSource>
<jndi>jdbc/JiraDS</jndi>
<url>jdbc:postgresql://localhost:25432/jira</url>
<driver>org.postgresql.Driver</driver>
<username>xxxxxx</username>
<password>xxxxxx</password>
<schema>public</schema>
<libArtifacts>
<libArtifact>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>42.2.12</version>
</libArtifact>
</libArtifacts>
</dataSource>
</dataSources>
</product>
</products>
<applications>
<application>
<applicationKey>jira-software</applicationKey>
<version>${jira.version}</version>
</application>
</applications>
<!-- make AMPS faster -->
<enableDevToolbox>false</enableDevToolbox>
<enablePde>false</enablePde>
<skipRestDocGeneration>true</skipRestDocGeneration>
<allowGoogleTracking>false</allowGoogleTracking>
<skipManifestValidation>true</skipManifestValidation>
<extractDependencies>false</extractDependencies>
<!-- QUICK RELOAD -->
<enableQuickReload>true</enableQuickReload>
<!-- Uncomment to install TestKit backdoor in JIRA. -->
<!--
<pluginArtifacts>
<pluginArtifact>
<groupId>com.atlassian.jira.tests</groupId>
<artifactId>jira-testkit-plugin</artifactId>
<version>${testkit.version}</version>
</pluginArtifact>
</pluginArtifacts>
-->
<!-- See here for an explanation of default instructions: -->
<!-- https://developer.atlassian.com/docs/advanced-topics/configuration-of-instructions-in-atlassian-plugins -->
<instructions>
<Atlassian-Plugin-Key>${atlassian.plugin.key}</Atlassian-Plugin-Key>
<!-- Add package to export here -->
<Export-Package>com.plugins.check.api,</Export-Package>
<!-- Add package import here -->
<Import-Package>
org.springframework.osgi.*;resolution:="optional",
org.eclipse.gemini.blueprint.*;resolution:="optional",
com.sun.jna;resolution:=optional,
com.sun.jna.platform.win32;resolution:=optional,
com.sun.jna.ptr;resolution:=optional,
com.sun.jna.win32;resolution:=optional,
javax.crypto;resolution:=optional,
javax.crypto.spec;resolution:=optional,
javax.naming.ldap;resolution:=optional,
javax.naming.spi;resolution:=optional,
javax.net;resolution:=optional,
javax.net.ssl;resolution:=optional,
javax.security.auth;resolution:=optional,
javax.security.auth.callback;resolution:=optional,
javax.security.auth.login;resolution:=optional,
javax.security.auth.x500;resolution:=optional,
javax.xml.parsers;resolution:=optional,
javax.xml.stream;resolution:=optional,
javax.xml.transform;resolution:=optional,
javax.xml.transform.dom;resolution:=optional,
javax.xml.transform.sax;resolution:=optional,
javax.xml.transform.stax;resolution:=optional,
javax.xml.transform.stream;resolution:=optional,
org.ietf.jgss;resolution:=optional,
org.osgi.framework;resolution:=optional,
org.osgi.service.jdbc;resolution:=optional,
org.w3c.dom;resolution:=optional,
org.xml.sax;resolution:=optional,
waffle.windows.auth;resolution:=optional,
waffle.windows.auth.impl;resolution:=optional,
*
</Import-Package>
<!-- Ensure plugin is spring powered -->
<Spring-Context>*</Spring-Context>
</instructions>
</configuration>
</plugin>
<plugin>
<groupId>com.atlassian.plugin</groupId>
<artifactId>atlassian-spring-scanner-maven-plugin</artifactId>
<version>${atlassian.spring.scanner.version}</version>
<executions>
<execution>
<goals>
<goal>atlassian-spring-scanner</goal>
</goals>
<phase>process-classes</phase>
</execution>
</executions>
<configuration>
<scannedDependencies>
<dependency>
<groupId>com.atlassian.plugin</groupId>
<artifactId>atlassian-spring-scanner-external-jar</artifactId>
</dependency>
</scannedDependencies>
<verbose>false</verbose>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<jira.version>7.13.0</jira.version>
<amps.version>8.0.2</amps.version>
<plugin.testrunner.version>2.0.1</plugin.testrunner.version>
<atlassian.spring.scanner.version>1.2.13</atlassian.spring.scanner.version>
<!-- This property ensures consistency between the key in atlassian-plugin.xml and the OSGi bundle's key. -->
<atlassian.plugin.key>${project.groupId}.${project.artifactId}</atlassian.plugin.key>
<!-- TestKit version 6.x for JIRA 6.x -->
<testkit.version>6.3.11</testkit.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
</project>
dbconfig.xml
<?xml version="1.0" encoding="UTF-8"?>
<jira-database-config>
<name>defaultDS</name>
<delegator-name>default</delegator-name>
<database-type>postgres72</database-type>
<schema-name>public</schema-name>
<jndi-datasource>
<jndi-name>java:comp/env/jdbc/JiraDS</jndi-name>
</jndi-datasource>
</jira-database-config>