Karaf,ServiceMix行为的怪异实例

时间:2019-04-11 00:43:33

标签: jaxb apache-karaf apache-felix apache-servicemix karaf

JAXB RI源代码包含:

public void setProperty(String name, Object value) throws PropertyException {

    if( PREFIX_MAPPER.equals(name) ) {
        if(!(value instanceof NamespacePrefixMapper))
            throw new PropertyException(
                Messages.MUST_BE_X.format(
                        name,
                        NamespacePrefixMapper.class.getName(),
                        value.getClass().getName() ) );
        prefixMapper = (NamespacePrefixMapper)value;
        return;
    }

我正在这样调用它:

        Class c = Class.forName("org.docx4j.jaxb.ri.NamespacePrefixMapper");
        prefixMapper = c.newInstance();         
        m.setProperty("com.sun.xml.bind.namespacePrefixMapper", prefixMapper );

我的Class c声明如下:

public class NamespacePrefixMapper extends com.sun.xml.bind.marshaller.NamespacePrefixMapper 
    implements NamespacePrefixMapperInterface, McIgnorableNamespaceDeclarator 

这通常可以正常工作(包括在Karaf 4.2.4,ServiceMix 7.0.1中),但是ServiceMix 5.4.1出现问题。

在ServiceMix 5.4.1中,我得到:

javax.xml.bind.PropertyException: property "com.sun.xml.bind.namespacePrefixMapper" must be an instance of type com.sun.xml.bind.marshaller.NamespacePrefixMapper, not org.docx4j.jaxb.ri.NamespacePrefixMapper
    at com.sun.xml.bind.v2.runtime.MarshallerImpl.setProperty(MarshallerImpl.java:502)

这很神秘,因为它扩展了com.sun.xml.bind.marshaller.NamespacePrefixMapper

instanceof是否应在OSGi环境中表现不同?

欢迎您,谢谢!

0 个答案:

没有答案