O2oa6.3 reports an error in the idea compilation module

Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.2:compile (default-compile) on project xxxx： Compilation failure

Solution: Change the JDK version of idea to 11 and synchronize the changes in pom.xml

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