No, the 'env' variable does not hold these values, but those are contained in the 'command'. This is an example:
C:\jboss\runtime\jvm64\bin\java, -D[Server:server-one], (some more JAVA OPTS) -D[Host Controller]=true, -Dsun.rmi.dgc.client.gcInterval=3600000, -Dorg.jboss.resolver.warning=true, -Dsun.rmi.dgc.server.gcInterval=3600000,
-Djboss.host.default.config=host.xml, -Djboss.modules.system.pkgs=org.jboss.byteman, -Djboss.home.dir=C:\jboss, -Djboss.domain.default.config=domain.xml, -Djava.net.preferIPv4Stack=true,
-Djboss.server.log.dir=C:\jboss\domain\servers\server-one\log, -Djboss.server.temp.dir=C:\jboss\domain\servers\server-one\tmp, -Djboss.server.data.dir=C:\jboss\domain\servers\server-one\data,
-Dorg.jboss.boot.log.file=C:\jboss\domain\servers\server-one\log\boot.log, -Dlogging.configuration=file:C:\jboss\domain/configuration/logging.properties, -jar, C:\jboss\jboss-modules.jar, -mp, C:\jboss\modules,
-jaxpmodule, javax.xml.jaxp-provider, org.jboss.as.server
Anyhow, none of these is used as working directory, so doesn't help here. Will create a JIRA.