Sun / Oracle JAXB RI错误?

时间:2012-12-06 12:21:04

标签: jaxb unmarshalling sun

  

编辑#1:我使用了JAXB RI 2.2.6(截至今天12/06/12的最新版本)和我   观察相同的行为: - (

我正在使用JAXB来解组XML有效负载。 当我第一次通过Unmarshaller传递无效的有效负载时,我得到以下类型的错误:

    javax.xml.bind.UnmarshalException: Unable to create an instance of foo.bar.FooBarType
 - with linked exception:
[java.lang.InstantiationException]

在我的代码的下一行(在catch()块中),我尝试相同的Unmarshaller实例并提供有效的有效负载,我得到以下类型的错误:

java.lang.ClassCastException: foo.bar.SomeAType cannot be cast to foo.bar.SomeBType

在下一行(再次在后续的catch()中),我尝试使用相同的Unmarshaller实例并再次提供相同的有效负载,这样可以解组!

有没有人在JAXB上遇到过这种行为?我在这里遇到一个错误吗?在哪里看/挖?

以下是我正在使用的JAXB jar清单的详细信息:

Manifest-Version: 1.0
 Ant-Version: Apache Ant 1.7.0
 Created-By: 1.5.0_12-b04 (Sun Microsystems Inc.)
 Specification-Title: Java Architecture for XML Binding
 Specification-Version: 2.1
 Specification-Vendor: Sun Microsystems, Inc.
 Implementation-Title: JAXB Reference Implementation 
 Implementation-Version: 2.1.12
 Implementation-Vendor: Sun Microsystems, Inc.
 Implementation-Vendor-Id: com.sun
 Extension-Name: com.sun.xml.bind
 Build-Id: hudson-jaxb-ri-2.1-833
 Class-Path: jaxb-api.jar activation.jar jsr173_1.0_api.jar jaxb1-impl.jar
 Name: com.sun.xml.bind.v2.runtime
 Implementation-Version: hudson-jaxb-ri-2.1-833

提前多多谢谢你!

  

编辑#2:无法粘贴所有内容,但这是它看起来像的主旨:

final JAXBContext jaxbContext = JAXBContext.newInstance(FooRequestType.class);
        final Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();

        JAXBElement<FooRequestType> result = null;
        try {

            //try unmarshalling invalid payload.
            result = unmarshaller.unmarshal(invalidPayload.getDocumentElement(), FooRequestType.class);

        }catch(Exception e1){

            try {
                //now try unmarshalling valid payload . ##NOTE: If you try unmarshalling Invalid Payload here, it will fail again.
                result = unmarshaller.unmarshal(validPayload.getDocumentElement(), FooRequestType.class);

            } catch(Exception e2){

                //try again unmarshalling valid payload
                result = unmarshaller.unmarshal(validPayload.getDocumentElement(), FooRequestType.class);
                System.out.println("Result:=" + result.getValue());
                System.out.println("Successfully unmarshalled. Exiting with (0)");
                System.exit(0);
            }
        }
        System.out.println("Not expecting to reach here.Exiting with (1)");
        System.exit(1);
  编辑#3:使用EclipseLink MOXy作为JAXB Impl,使用同一段代码;它的行为正确。   我在Sun / Oracle JAXB RI上打开了一个错误:http://java.net/jira/browse/JAXB-931

0 个答案:

没有答案