code: @FFDCIgnore(Exception.class)
      String getRuntimeClassVersion() {
          String runtimeVersion = null;
          try {
              Class<?> clazz = Class.forName(PROBE_PROXY_CLASS_NAME);
              Field version = ReflectionHelper.getDeclaredField(clazz, VERSION_FIELD_NAME);
              runtimeVersion = (String) version.get(null);
          } catch (Exception e) {
          }
          return runtimeVersion;
      }
docs: Determine if the boot delegated proxy is already available and, if so,
  what its version is.
  
  @return the runtime version of the emitter proxy or null if the class
  is not currently available