src/main/java/com/amazonaws/encryptionsdk/kms/KmsMasterKeyProvider.java [422:452]:
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  @Override
  public String getDefaultProviderId() {
    return PROVIDER_NAME;
  }

  @Override
  public KmsMasterKey getMasterKey(final String provider, final String keyId)
      throws UnsupportedProviderException, NoSuchMasterKeyException {
    if (!canProvide(provider)) {
      throw new UnsupportedProviderException();
    }

    if (!isDiscovery_ && !keyIds_.contains(keyId)) {
      throw new NoSuchMasterKeyException("Key must be in supplied list of keyIds.");
    }

    final AwsKmsCmkArnInfo arnInfo = parseInfoFromKeyArn(keyId);

    if (isDiscovery_ && discoveryFilter_ != null && (arnInfo == null)) {
      throw new NoSuchMasterKeyException(
          "Cannot use non-ARN key identifiers or aliases if " + "discovery filter is configured.");
    } else if (isDiscovery_
        && discoveryFilter_ != null
        && !discoveryFilter_.allowsPartitionAndAccount(
            arnInfo.getPartition(), arnInfo.getAccountId())) {
      throw new NoSuchMasterKeyException(
          "Cannot use key in partition "
              + arnInfo.getPartition()
              + " with account id "
              + arnInfo.getAccountId()
              + " with configured discovery filter.");
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src/main/java/com/amazonaws/encryptionsdk/kmssdkv2/KmsMasterKeyProvider.java [296:326]:
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  @Override
  public String getDefaultProviderId() {
    return PROVIDER_NAME;
  }

  @Override
  public KmsMasterKey getMasterKey(final String provider, final String keyId)
      throws UnsupportedProviderException, NoSuchMasterKeyException {
    if (!canProvide(provider)) {
      throw new UnsupportedProviderException();
    }

    if (!isDiscovery_ && !keyIds_.contains(keyId)) {
      throw new NoSuchMasterKeyException("Key must be in supplied list of keyIds.");
    }

    final AwsKmsCmkArnInfo arnInfo = parseInfoFromKeyArn(keyId);

    if (isDiscovery_ && discoveryFilter_ != null && (arnInfo == null)) {
      throw new NoSuchMasterKeyException(
          "Cannot use non-ARN key identifiers or aliases if " + "discovery filter is configured.");
    } else if (isDiscovery_
        && discoveryFilter_ != null
        && !discoveryFilter_.allowsPartitionAndAccount(
            arnInfo.getPartition(), arnInfo.getAccountId())) {
      throw new NoSuchMasterKeyException(
          "Cannot use key in partition "
              + arnInfo.getPartition()
              + " with account id "
              + arnInfo.getAccountId()
              + " with configured discovery filter.");
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