public static Gfsh getCurrentInstance() {
    return instance;
  }
This method sets the parent of all loggers whose name starts with "java" or "javax" to
LogWrapper.

logWrapper disables any parents's log handler, and only logs to the file if specified. This
would prevent JDK's logging show up in the console
geode-gfsh/src/main/java/org/apache/geode/management/internal/cli/shell/Gfsh.java