I'm trying to build a docker image but I get an error telling me that the jib-maven-plugin failed. Resulting in an unsupported class file major version 61 error.
At first I thought it had to do with the version of java I was using (Java 17). So I uninstalled it from my machine and installed Java 15 but without succes.
The command I'm trying to run:
./mvnw compile jib:dockerBuild -Djib.to.image=fullstack:v1
The error response I get:
Failed to execute goal com.google.cloud.tools:jib-maven-plugin:2.5.2:dockerBuild (default-cli) on project demo: Execution default-cli of goal com.google.cloud.tools:jib-maven-plugin:2.5.2:dockerBuild failed: Unsupported class file major version 61 -> [Help 1]
My pom.xml file:
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.3</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>15</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
<!-- The plugin below is to make a docker image using Jib -->
<plugin>
<groupId>com.google.cloud.tools</groupId>
<artifactId>jib-maven-plugin</artifactId>
<version>2.5.2</version>
<configuration>
<from>
<image>openjdk:15</image>
</from>
<container>
<ports>
<port>8080</port>
</ports>
<format>OCI</format>
</container>
</configuration>
</plugin>
</plugins>
</build>
<!-- The code below is for packaging the frontend with the backend using maven -->
<profiles>
<profile>
<id>build-frontend</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<build>
<plugins>
<plugin>
<groupId>com.github.eirslett</groupId>
<artifactId>frontend-maven-plugin</artifactId>
<!-- Use the latest released version:
https://repo1.maven.org/maven2/com/github/eirslett/frontend-maven-plugin/ -->
<version>1.11.2</version>
<configuration>
<nodeVersion>v4.6.0</nodeVersion>
<workingDirectory>src/frontend</workingDirectory>
</configuration>
<executions>
<execution>
<id>install node and npm</id>
<goals>
<goal>install-node-and-npm</goal>
</goals>
<configuration>
<nodeVersion>v15.4.0</nodeVersion>
<npmVersion>7.3.0</npmVersion>
</configuration>
</execution>
<execution>
<id>npm install</id>
<goals>
<goal>npm</goal>
</goals>
<configuration>
<arguments>install</arguments>
</configuration>
</execution>
<execution>
<id>npm run build</id>
<goals>
<goal>npm</goal>
</goals>
<configuration>
<arguments>run build</arguments>
</configuration>
</execution>
</executions>
</plugin>
<!-- The plugin below is for copying the build folder into the target static folder (maven) -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<executions>
<execution>
<id>copy-build-folder</id>
<phase>process-classes</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<resources>
<resource>
<directory>src/frontend/build</directory>
</resource>
</resources>
<outputDirectory>${basedir}/target/classes/static</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>
