switch java version in pom.xml

java-switch.xml

<properties>
	<maven.compiler.source>11</maven.compiler.source>
	<maven.compiler.target>11</maven.compiler.target>
</properties>

<dependencies>
	<dependency>
		<groupId>org.apache.maven.plugins</groupId>
		<artifactId>maven-compiler-plugin</artifactId>
		<version>3.8.1</version>
	</dependency>
</dependencies>

or

<build>
	<plugins>
		<plugin>
			<groupId>org.apache.maven.plugins</groupId>
			<artifactId>maven-compiler-plugin</artifactId>
			<version>3.8.1</version>
		</plugin>
		<configuration>
			<source>11</source>
			<target>11</target>
		</configuration>
	</plugins>
</build>