How to configure Maven to use Java 8

In pom.xml, defined this maven.compiler.source properties to configure Maven to use Java 8 to compile the project.

Sometimes when you may need to compile a certain project to a different version than what you are currently using. The javac can accept such command using -source and -target. The Compiler Plugin can also be configured to provide these options during compilation.

For example, if you want to use the Java 8 language features (-source 1.8) and also want the compiled classes to be compatible with JVM 1.8 (-target 1.8), you can either add the two following properties, which are the default property names for the plugin parameters:

 

  [...]
  
    1.8
    1.8
  
  [...]

or configure the plugin directly:

 

  [...]
  
    [...]
    
      
        org.apache.maven.plugins
        maven-compiler-plugin
        3.6.1
        
          1.8
          1.8
        
      
    
    [...]
  
  [...]

Merely setting the target option does not guarantee that your code actually runs on a JRE with the specified version. The pitfall is unintended usage of APIs that only exist in later JREs which would make your code fail at runtime with a linkage error. To avoid this issue, you can either configure the compiler's boot classpath to match the target JRE

Java Java 8 Maven 6/21/2017 05:49:00 pm