Set JDK path on FreeBSD hosts

Author: sarog

distribution/src/bin/elasticsearch-env

@@ -49,6 +49,9 @@ else
   if [ "$(uname -s)" = "Darwin" ]; then
     # macOS has a different structure
     JAVA="$ES_HOME/jdk.app/Contents/Home/bin/java"
+  elif [ "$(uname -s)" = "FreeBSD" ]; then
+    LOCALBASE="$(sysctl -n user.localbase)"
+    JAVA="${LOCALBASE}/bin/java"
   else
     JAVA="$ES_HOME/jdk/bin/java"
   fi