maven-compiler-plugin

maven-compiler-plugin

https://maven.apache.org/plugins/maven-compiler-plugin/

<build>
	<plugins>
		...
		<plugin>
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-compiler-plugin</artifactId>
			<version>3.5.1</version>
			<configuration>
				<source>1.8</source>
				<target>1.8</target>
			</configuration>
		</plugin>
		...
	</plugins>
</build>