Exception in thread "Timer-1" com.thoughtworks.xstream.converters.ConversionException: For input string: "VS" : For input string: "VS"

 ---- Debugging information ----

 message             : For input string: "VS"

 cause-exception     : java.lang.NumberFormatException

 cause-message       : For input string: "VS"

 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                : /interface/items/roomstate

 class[1]            : catic.hotel.server.webservice.Items

 converter-type[1]   : com.thoughtworks.xstream.converters.reflection.ReflectionConverter

 class[2]            : catic.hotel.server.webservice.Interface

 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:1058)

     at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1042)

     at com.thoughtworks.xstream.XStream.fromXML(XStream.java:913)

     at com.thoughtworks.xstream.XStream.fromXML(XStream.java:904)

     at catic.library.util.XmlBeanConvertUtil.xml2Bean(XmlBeanConvertUtil.java:27)

     at catic.library.util.XMLUtil.roomStatusXmlToList2(XMLUtil.java:86)

     at catic.hotel.server.server.ReadDataByPMSOurDB$ReadPMSUptOurDB.run(ReadDataByPMSOurDB.java:104)

     at java.util.TimerThread.mainLoop(Unknown Source)

     at java.util.TimerThread.run(Unknown Source)

 Caused by: java.lang.NumberFormatException: For input string: "VS"

     at java.lang.NumberFormatException.forInputString(Unknown Source)

     at java.lang.Long.parseLong(Unknown Source)

     at java.lang.Long.valueOf(Unknown Source)

     at java.lang.Long.decode(Unknown Source)

     at com.thoughtworks.xstream.converters.basic.IntConverter.fromString(IntConverter.java:27)

     at com.thoughtworks.xstream.converters.SingleValueConverterWrapper.fromString(SingleValueConverterWrapper.java:41)

     at com.thoughtworks.xstream.converters.SingleValueConverterWrapper.unmarshal(SingleValueConverterWrapper.java:49)

     at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:72)

     ... 26 more