code: public static boolean is64bits() {
          String arch = System.getProperty("sun.arch.data.model");
          if (Strings.isNullOrEmpty(arch)) {
              arch = System.getProperty("os.arch");
          }
          return is64bits(arch);
      }
docs: Checks if the CPU architecture of the current computer is 64 bits.
  
  @return {@code true} if the CPU architecture of the current computer is 64 bits. {@code false} otherwise. This
  methods checks first the {@literal sun.arch.data.model} system's property and then the {@literal os.arch} one.
  If none of these two properties are set, it returns {@code false}.