maven. lambda expressions are not supported in -source 1.5

Question

I use maven to build my project.

I have following configuration:

D:\\freelance\\polyndrom>mvn -verion Apache Maven 3.2.3 (33f8c3e1027c3ffffde9

Answer 1

By default, Maven assumes you wrote your code using JDK 1.5 and that you want to compile to that same target. You will need to add the maven-compiler-plugin to your build plugins, in order to tell it to use 1.8.

    
        
            org.apache.maven.plugins
            maven-compiler-plugin
            3.3
            
                1.8
                1.8
            
        
    

Check out the plugin's docs for more info: http://maven.apache.org/plugins/maven-compiler-plugin/compile-mojo.html