public void setEncryptionMaterialsProvider(EncryptionMaterialsProvider encryptionMaterialsProvider) {
        this.encryptionMaterialsProvider = encryptionMaterialsProvider;
    }
Sets the encryption materials to be used to encrypt and decrypt data
<p>
<b>Note: </b> If a non-KMS encryption materials provider is used, an internal KMS client will still be created by default.
See {@link #setKmsClient(AWSKMS)} for more information.

@param encryptionMaterialsProvider a provider for the encryption materials
aws-java-sdk-s3/src/main/java/com/amazonaws/services/s3/AmazonS3EncryptionClientV2Builder.java