Eliminate warnings
<version>1</version>
<properties>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<jib-maven-plugin.version>0.9.8</jib-maven-plugin.version>
+ <maven-compiler-plugin.version>3.8.0</maven-compiler-plugin.version>
</properties>
<dependencies>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
+ <version>${maven-compiler-plugin.version}</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
