docs: private static String getExistingMatchingIfixID(BundleFile bundleFile, Set<String> existingIDs, Map<String, BundleFile> bundleFiles) {
          String existingIfixKey = null;
          // Iterate over the known ids.
          for (String existingID : existingIDs) {
              // If we have a corresponding BundleFile for the existing ID, we need to check it matches the currently processed file.
              if (bundleFiles.containsKey(existingID)) {
                  BundleFile existingBundleFile = bundleFiles.get(existingID);
                  // If our symbolic name match the supplied BundleFile then move on to the version checking.
                  if (bundleFile.getSymbolicName().equals(existingBundleFile.getSymbolicName())) {
                      //Get the versions of both the checking bundle and the existing bundle. Check that the version, excluding the qualifier match
                      // and if they do, we have a match.
                      Version existingBundleVersion = new Version(existingBundleFile.getVersion());
                      Version bundleVersion = new Version(bundleFile.getVersion());
                      if (bundleVersion.getMajor() == existingBundleVersion.getMajor() &&
                          bundleVersion.getMinor() == existingBundleVersion.getMinor() &&
                          bundleVersion.getMicro() == existingBundleVersion.getMicro())
                          existingIfixKey = existingID;
                  }
              }
          }
          return existingIfixKey;
      }