code: private String getCodeLineKey(final String hookedClassQualifiedName,
                                    final String hookedMethodSimpleName,
                                    String hookedArgClassesStr, final int hookedLine) {
          return String.format("%s_%s_%s_%d_%d",
                  hookedClassQualifiedName,
                  hookedMethodSimpleName,
                  hookedArgClassesStr,
                  hookedLine,
                  Thread.currentThread().getStackTrace().length);
      }
docs: Calculate unique key for each code line hook