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Forgot your mac MYSQL root password - Follow the instructions in the link here to reset it.
Debugging
If you set the MAVEN_OPTS as the following before you start your server, you can attach a debugger to it.
export MAVEN_OPTS="-Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000"
mvn openmrs-sdk:run -DserverId=test