JAXB反编组移除数字签名中的回车符问题求助

使用的依赖 #

<dependency>
    <groupId>jakarta.activation</groupId>
    <artifactId>jakarta.activation-api</artifactId>
    <version>2.1.1</version>
</dependency>
<dependency>
    <groupId>jakarta.xml.bind</groupId>
    <artifactId>jakarta.xml.bind-api</artifactId>
    <version>4.0.0</version>
</dependency>
<dependency>
    <groupId>com.sun.xml.bind</groupId>
    <artifactId>jaxb-impl</artifactId>
    <version>4.0.0</version>
    <scope>runtime</scope>
</dependency>

问题详情 #

我已成功用信封方式生成XML签名，签名内容片段如下：

<Signature xmlns="http://www.w3.org/2000/09/xmldsig#"><SignedInfo><CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/><SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/><Reference URI=""><Transforms><Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/></Transforms><DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/><DigestValue>xndyhbkzbLreG3cxXqa5Q5RdKEavhrc2Fvd0Wsc+Oug=</DigestValue></Reference></SignedInfo><SignatureValue>No+gNx3Hwd3WfH0v6OZ8uptWVyneZT55CfUrxMnW33a87egeiImwsyepZZXTbya0ifzX1iOtyyaf&#13;
OwEDxTFhf/FCPH6Nj9KCFNabZddwN38tCOkkAkYdkKdW14AM80HU/9yPIAMWytibbyd3AKVuRQgd&#13;
+qkf1/V8J1Ki1LNO4tbPzxqpNMpRmpH/469lgMHEz9Xy1DnJ154E+H2OWNufooGwwpV/pMbM8RzY&#13;

直接验证签名可以成功：

signature.sign(dsc);

System.out.println("doc: " + getStringFromDocument(doc) + " validate: " + validate(doc));

但将签名反编组到DTO时验证失败，反编组代码如下：

JAXBElement<?> root = XmlUtils.getUnMarshaller(xml.getClass().getName()).unmarshal(getStreamSource(doc), xml.getClass());

xml.setSignature(((SignXml<?>) root.getValue()).getSignature());

对比发现，反编组后的签名丢失了
（回车符）：原文档的SignatureValue包含该字符，反编组后被移除。我试过旧版JAXB的EscapeCharacter方案，但不适用于新版JAXB，请问有没有适配新版JAXB的解决办法？

内容的提问来源于stack exchange，提问作者czetsuya