public static void annotateBytecodeInAar()

in jar-infer/jar-infer-lib/src/main/java/com/uber/nullaway/jarinfer/BytecodeAnnotator.java [326:373]
42 lines of code
4 McCabe index (conditional complexity)

  public static void annotateBytecodeInAar(
      ZipFile inputZip,
      ZipOutputStream zipOS,
      MethodParamAnnotations nonnullParams,
      MethodReturnAnnotations nullableReturns,
      boolean stripJarSignatures,
      boolean debug)
      throws IOException {
    BytecodeAnnotator.debug = debug;
    LOG(debug, "DEBUG", "nullableReturns: " + nullableReturns);
    LOG(debug, "DEBUG", "nonnullParams: " + nonnullParams);
    // Error Prone doesn't like usages of the old Java Enumerator APIs. ZipFile does not implement
    // Iterable, and likely never will (see  https://bugs.openjdk.java.net/browse/JDK-6581715).
    // Additionally, inputZip.stream() returns a Stream<? extends ZipEntry>, and a for-each loop
    // has trouble handling the corresponding ::iterator  method reference. So this seems like the
    // best remaining way:
    Iterator<? extends ZipEntry> zipIterator = inputZip.stream().iterator();
    while (zipIterator.hasNext()) {
      ZipEntry zipEntry = zipIterator.next();
      InputStream is = inputZip.getInputStream(zipEntry);
      zipOS.putNextEntry(createZipEntry(zipEntry.getName()));
      if (zipEntry.getName().equals("classes.jar")) {
        JarInputStream jarIS = new JarInputStream(is);
        JarEntry inputJarEntry = jarIS.getNextJarEntry();

        ByteArrayOutputStream byteArrayOS = new ByteArrayOutputStream();
        JarOutputStream jarOS = new JarOutputStream(byteArrayOS);
        while (inputJarEntry != null) {
          copyAndAnnotateJarEntry(
              inputJarEntry,
              jarIS,
              jarOS,
              nonnullParams,
              nullableReturns,
              androidNullableDesc,
              androidNonnullDesc,
              stripJarSignatures);
          inputJarEntry = jarIS.getNextJarEntry();
        }
        jarOS.flush();
        jarOS.close();
        zipOS.write(byteArrayOS.toByteArray());
      } else {
        zipOS.write(IOUtils.toByteArray(is));
      }
      zipOS.closeEntry();
    }
  }