Found the issue. Basically, its not a funky character, its that the powershell functionally is handling the command line call different like THIS post. so the correct syntax here is as follows

java -Dsun.java2d.uiScale=1 -jar "fsal jar location" -url "url"

Becomes

java '-Dsun.java2d.uiScale=1' -jar "fsal jar location" -url "url"

otherwise the PS interpreter separates on the period yielding
-Dsun
.java2d.uiscale=1