Quoted system property is passed through with quotes included in Maven task

Summary

Running mvn task with goal below, sets the system property with quotes:

-Dincludes="au.*,au.com.*"

Running a script task with the following inline commands, sets the system property without quotes:

 /usr/share/maven/bin/mvn --batch-mode -X -Djava.io.tmpdir=/opt/atlassian/bamboo/temp/TEST-CLON-JOB1 clean package -Dincludes="au.*,au.com.*"

Expected Results

Consistency between the script task and the Maven task

Actual Results

When running maven with -X from Maven task:

build	29-Jun-2016 15:50:56	[DEBUG] Setting system property [includes]=["au.*,au.com.*"]

When running maven with -X from Script task:

build	29-Jun-2016 15:51:03	[DEBUG] Setting system property [includes]=[au.*,au.com.*]

Workaround

Remove quotes from the system property in the Maven task goals.