@Override
  @RequiresApi(23)
  public boolean doesSupport(String uri) {
    if (this.keyUri != null && this.keyUri.equals(uri)) {
      return true;
    }
    return this.keyUri == null && uri.toLowerCase(Locale.US).startsWith(PREFIX);
  }
@return true either if {@link AndroidKeystoreKmsClient#keyUri} is not null and equal to {@code
    uri}, or {@link AndroidKeystoreKmsClient#keyUri} is null and {@code uri} starts with {@link
    AndroidKeystoreKmsClient#PREFIX}.
java_src/src/main/java/com/google/crypto/tink/integration/android/AndroidKeystoreKmsClient.java