I just tried this and was hoping I could add it in the wrapper.java.additional.X options in ignition.conf, but didn’t have any luck putting it there. But adding it to the machine/system environment variables worked perfectly!
For easier copy/paste for others of the variable and its value:
JAVA_TOOL_OPTIONS
-Djavax.net.ssl.trustStoreType=WINDOWS-ROOT-LOCALMACHINE
Or if you want to just do it from a command prompt (the /f forces it to overwrite without prompting - so you can remove it if you want to be cautious):
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v "JAVA_TOOL_OPTIONS" /t REG_SZ /d "-Djavax.net.ssl.trustStoreType=WINDOWS-ROOT-LOCALMACHINE" /f