का उपयोग कर एक XML धारा मैं प्राप्त होता है तत्व, मैं निम्नलिखित बयानdeserialize खाली एक्सएमएल Xstream
<user>
<age/>
</user>
जो एक उद्देश्य यह है कि इस तरह दिखता है पर डालने की है:
@XStreamAlias("user")
public class User {
public int age = 0;
}
दुर्भाग्य से, जब भी मैं इस एक्सएमएल को पढ़ने की कोशिश करता हूं, तो मुझे XStream अपवाद प्राप्त होते हैं, क्योंकि उम्र xml टैग खाली है:
Exception in thread "main" com.thoughtworks.xstream.converters.ConversionException: For input string: "" : For input string: ""
---- Debugging information ----
message : For input string: ""
cause-exception : java.lang.NumberFormatException
cause-message : For input string: ""
class : java.lang.Integer
required-type : java.lang.Integer
converter-type : com.thoughtworks.xstream.converters.SingleValueConverterWrapper
wrapped-converter : com.thoughtworks.xstream.converters.basic.IntConverter
path : /GoodreadsResponse/user/age
line number : 17
class[1] : fr.riduidel.exporter.goodreads.User
converter-type[1] : com.thoughtworks.xstream.converters.reflection.ReflectionConverter
class[2] : fr.riduidel.exporter.goodreads.GoodreadsResponse
version : null
-------------------------------
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:79)
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshallField(AbstractReflectionConverter.java:355)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doUnmarshal(AbstractReflectionConverter.java:306)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:234)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:72)
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:50)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doUnmarshal(AbstractReflectionConverter.java:322)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:234)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:72)
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:50)
at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:134)
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:32)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1052)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1036)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:921)
मैं टेलिफोन कैसे कर सकता हूं एल XStream इस क्षेत्र को "वैकल्पिक" या "possibliy कुछ भी नहीं" के रूप में विचार करने के लिए?