public static MemberMXBean getMemberMXBean(final String member) throws IOException {
    return getMemberMXBean(null, member);
  }
Gets a proxy to the MemberMXBean for the GemFire member specified by member name or ID from the
GemFire Manager's MBeanServer.
<p>

@param member a String indicating the GemFire member's name or ID.
@return a proxy to the MemberMXBean having the specified GemFire member's name or ID from the
        GemFire Manager's MBeanServer, or null if no GemFire member could be found with the
        specified member name or ID.
@see #getMemberMXBean(String, String)
geode-gfsh/src/main/java/org/apache/geode/management/internal/cli/shell/MXBeanProvider.java