code: public Optional<SectionHeader> maybeGetSectionHeaderByRVA(long rva) {
          List<SectionHeader> headers = table.getSectionHeaders();
          for (SectionHeader header : headers) {
              VirtualLocation vLoc = getVirtualSectionLocation(header);
              if (addressIsWithin(vLoc, rva)) {
                  return Optional.of(header);
              }
          }
          return Optional.absent();
      }
docs: Returns the section entry of the section table the rva is pointing into.
  
  @param rva
  the relative virtual address
  @return the {@link SectionHeader} of the section the rva is pointing into