Fill out your User settings file with the conf/settings.xml file path (absolute path) and unless you have a very specific need from some other maven version - change the maven home directory as well.
<?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.atlassian.plugins.tutorial.jira</groupId>
<artifactId>jira-report-plugin</artifactId>
<version>1.0-SNAPSHOT</version>
<organization>
<name>Atlassian Developers</name>
<url>https://developer.atlassian.com/</url>
</organization>
<name>jira-report-plugin</name>
<description>Extends JIRA issue reports.</description>
<packaging>atlassian-plugin</packaging>
<dependencies>
<dependency>
<groupId>com.atlassian.jira</groupId>
<artifactId>jira-api</artifactId>
<version>${jira.version}</version>
<scope>provided</scope>
</dependency>
<!-- Add dependency on jira-core if you want access to JIRA implementation classes as well as the sanctioned API.-->
<dependency>
<groupId>com.atlassian.jira</groupId>
<artifactId>jira-core</artifactId>
<version>${jira.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>
<!-- 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>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>1.8.5</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>com.atlassian.maven.plugins</groupId>
<artifactId>maven-jira-plugin</artifactId>
<version>${amps.version}</version>
<extensions>true</extensions>
<configuration>
<applications>
<application>
<applicationKey>jira-software</applicationKey>
<version>${jira.software.application.version}</version>
</application>
<application>
<applicationKey>jira-servicedesk</applicationKey>
<version>${jira.servicedesk.application.version}</version>
</application>
</applications>
<productVersion>${jira.version}</productVersion>
<productDataVersion>${jira.version}</productDataVersion>
<!-- Uncomment to install TestKit backdoor in JIRA. -->
<!--
<pluginArtifacts>
<pluginArtifact>
<groupId>com.atlassian.jira.tests</groupId>
<artifactId>jira-testkit-plugin</artifactId>
<version>${testkit.version}</version>
</pluginArtifact>
</pluginArtifacts>
-->
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<jira.version>7.1.0</jira.version>
<amps.version>6.2.9</amps.version>
<jira.software.application.version>7.5.0</jira.software.application.version>
<jira.servicedesk.application.version>3.8.2</jira.servicedesk.application.version>
<plugin.testrunner.version>1.2.3</plugin.testrunner.version>
<!-- TestKit version 5.x for JIRA 5.x, 6.x for JIRA 6.x -->
<testkit.version>5.2.26</testkit.version>
</properties>
</project>
By the way, in IDEA, the version 3.6.2 for maven-compiler-plugin is highlighted red. Not sure if thats what you see on your end too and if that has anything to do with this issue.