public void setEncryptionMaterials(EncryptionMaterialsProvider encryptionMaterials) {
        this.encryptionMaterials = encryptionMaterials;
    }
Sets the encryption materials to be used to encrypt and decrypt data
@param encryptionMaterials a provider for the encryption materials
aws-java-sdk-s3/src/main/java/com/amazonaws/services/s3/AmazonS3EncryptionClientBuilder.java