Getting unexpected at this time ERROR in executing multiple CLI command on powershell

Issue

• On Windows 2012 R2 Datacenter with JBoss EAP 6.4 we have some trouble with jboss-cli.bat script. If we use jboss-cli.bat to execute multiple commands, comma seperated on command line (CMD) like following example then everything is ok.

O:\>o:\JBossEAP6\bin\jboss-cli.bat --connect --commands="/core-service=management/access=authorization/role-mapping=test:add(),/core-service=management/access=authorization/role-mapping=test:remove()"
{
    "outcome" => "success",
    "result" => undefined,
    "server-groups" => {"main-server-group" => {"host" => {"master" => {"server-one" => {"response" => {"outcome" => "success"}}}}}}
}
{
    "outcome" => "success",
    "result" => undefined,
    "server-groups" => {"main-server-group" => {"host" => {"master" => {"server-one" => {"response" => {"outcome" => "success"}}}}}}
}

• But if we use Powershell we are getting the below ERROR:

PS O:\> o:\JBossEAP6\bin\jboss-cli.bat --connect --commands="/core-service=management/access=authorization/role-mapping=test:add(),/core-service=management
/access=authorization/role-mapping=test:remove()"
/core-service was unexpected at this time.

PS O:\> cmd.exe /c o:\JBossEAP6\bin\jboss-cli.bat --connect --commands="/core-service=management/access=authorization/role-mapping=test:add(),/core-service
=management/access=authorization/role-mapping=test:remove()"
/core-service was unexpected at this time.

• Above CLI commands are example commands. Every time we get the above ERROR was unexpected at this time. On JBoss EAP 6.3.3 there was no such issue.