Skip cobertura coverage check when skip unit test

After I introduced embedded mysql for unit testing to my project, the build is taking longer now.  For my local development, sometimes I want to disable the unit test:

      mvn clean package -DskipTests

Note that you can even skip the compiling of test class by using

     mvn clean package -Dmaven.test.skip

However, if you use cobertura for code coverage check, you would get the following error:

[ERROR] Project failed check. Total branch coverage rate of 0.0% is below 85.0%
Project failed check. Total line coverage rate of 0.0% is below 85.0%

So you need to skip cobertura as well.  if you google "skip cobertura", most answers suggested using haltOnFailure. However, cobertura already provides the skip functionality:

     mvn clean package -DskipTests -Dcobertura.skip

With -Dcobertura.skip, cobertura check will be skipped:

[INFO] --- cobertura-maven-plugin:2.5.2:instrument (default) @ tag-service ---
[INFO] Skipping cobertura execution