引用了第三方jar包和钉钉的jar包，钉钉jar包没引入前正常，引入后报错

javax.xml.bind.PropertyException: name: com.sun.xml.internal.bind.marshaller.CharacterEscapeHandler value: com.mybank.api.internal.util.JaxbUtil$1@1a257f01

com.mybank.api.internal.util.JaxbUtil为第三方jar包的实现类
解决方案

 <!--钉钉sdk-->
        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>dingtalk</artifactId>
            <version>1.1.86</version>
            <exclusions>
                <exclusion>
                    <groupId>com.sun.xml.bind</groupId>
                    <artifactId>jaxb-core</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>com.sun.xml.bind</groupId>
                    <artifactId>jaxb-impl</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

去除 jaxb-core和jaxb-impl就行

  	<exclusions>
                <exclusion>
                    <groupId>com.sun.xml.bind</groupId>
                    <artifactId>jaxb-core</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>com.sun.xml.bind</groupId>
                    <artifactId>jaxb-impl</artifactId>
                </exclusion>
            </exclusions>

问题debug

因为JAXBContext使用工厂模式，很难去看到底层如何获取实现类，只能一层一层debug。
ContextFinder 类里面有个 resourceURL = classLoader.getResource(resource);
此记录将从jar包（jaxb）路径获取，去除后会从其他地方获取