What is the difference between “-Dmaven.test.skip.exec” vs “-Dmaven.test.skip=true” and “-DskipTests”?

Question

I am not sure what the difference between the maven directives -Dmaven.test.skip.exec and -Dmaven.test.skip=true -DskipTests are. Both

Answer 1

Please look at the reference : http://maven.apache.org/surefire/maven-surefire-plugin/examples/skipping-test.html

Extract :

Skipping Tests

To skip running the tests for a particular project, set the skipTests property to true.

  [...]
  
    
      
        org.apache.maven.plugins
        maven-surefire-plugin
        2.18.1
        
          true
        
      
    
  
  [...]

You can also skip the tests via the command line by executing the following command:

mvn install -DskipTests

If you absolutely must, you can also use the maven.test.skip property to skip compiling the tests. maven.test.skip is honored by Surefire, Failsafe and the Compiler Plugin.

mvn install -Dmaven.test.skip=true