EmptyStackException when writing attribute

The error occurs when returning Java object (containing other objects and sets of objects) from REST interface built with JBoss RESTEasy which use Jettison to produce JSON responses. The same data printed to XML produce following content:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<place timestamp="2009-05-13T15:52:07.840+02:00" id="1">
<categories>
<category timestamp="2009-05-13T15:52:07.840+02:00">
<categorySystemName>xxxx</categorySystemName>
<displayName>yyyy</displayName>
<name>yyy</name>
</category>
</categories>
<contact timestamp="2009-05-13T15:52:07.840+02:00">
<phone>435435435</phone>
</contact>
<location timestamp="2009-05-13T15:52:07.840+02:00">
<address timestamp="2009-05-13T15:52:07.840+02:00">
<city>San Francisco</city>
<countryCode>USA</countryCode>
<zipCode>94128</zipCode>
</address>
<geoCoordinates timestamp="2009-05-13T15:52:07.840+02:00">
<latitude>37.61476</latitude>
<longitude>-122.39188</longitude>
</geoCoordinates>
</location>
<hasPpoiInformation>false</hasPpoiInformation>
<isAdPlace>false</isAdPlace>
<names timestamp="2009-05-13T15:52:07.840+02:00">
<alternativeNames>
<name timestamp="2009-05-13T15:52:07.840+02:00">
<language>eng</language>
<name>Sfo Int'L Airport</name>
</name>
<name timestamp="2009-05-13T15:52:07.840+02:00">
<language>eng</language>
<name>Sfo</name>
</name>
<name timestamp="2009-05-13T15:52:07.840+02:00">
<language>eng</language>
<name>Sf Int'L Airport</name>
</name>
</alternativeNames>
<defaultName timestamp="2009-05-13T15:52:07.840+02:00">
<language>eng</language>
<name>San Francisco Int'L Airport</name>
</defaultName>
</names>
</place>

Stack trace:
java.util.EmptyStackException
org.codehaus.jettison.util.FastStack.peek(FastStack.java:39)
org.codehaus.jettison.mapped.MappedXMLStreamWriter.setNewValue(MappedXMLStreamWriter.java:121)
org.codehaus.jettison.mapped.MappedXMLStreamWriter.makeCurrentJSONObject(MappedXMLStreamWriter.java:113)
org.codehaus.jettison.mapped.MappedXMLStreamWriter.writeAttribute(MappedXMLStreamWriter.java:97)
org.codehaus.jettison.mapped.MappedXMLStreamWriter.writeAttribute(MappedXMLStreamWriter.java:138)
org.codehaus.jettison.mapped.MappedXMLStreamWriter.writeAttribute(MappedXMLStreamWriter.java:142)
com.sun.xml.bind.v2.runtime.output.XMLStreamWriterOutput.attribute(XMLStreamWriterOutput.java:131)
com.sun.xml.bind.v2.runtime.output.XmlOutputAbstractImpl.attribute(XmlOutputAbstractImpl.java:106)
com.sun.xml.bind.v2.runtime.XMLSerializer.attribute(XMLSerializer.java:442)
com.sun.xml.bind.v2.runtime.property.AttributeProperty.serializeAttributes(AttributeProperty.java:99)
com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeAttributes(ClassBeanInfoImpl.java:331)
com.sun.xml.bind.v2.runtime.XMLSerializer.childAsXsiType(XMLSerializer.java:679)
com.sun.xml.bind.v2.runtime.property.ArrayElementNodeProperty.serializeItem(ArrayElementNodeProperty.java:65)
com.sun.xml.bind.v2.runtime.property.ArrayElementProperty.serializeListBody(ArrayElementProperty.java:168)
com.sun.xml.bind.v2.runtime.property.ArrayERProperty.serializeBody(ArrayERProperty.java:152)
com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(ClassBeanInfoImpl.java:322)
com.sun.xml.bind.v2.runtime.XMLSerializer.childAsXsiType(XMLSerializer.java:681)
com.sun.xml.bind.v2.runtime.property.SingleElementNodeProperty.serializeBody(SingleElementNodeProperty.java:150)
com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(ClassBeanInfoImpl.java:322)
com.sun.xml.bind.v2.runtime.XMLSerializer.childAsSoleContent(XMLSerializer.java:589)
com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeRoot(ClassBeanInfoImpl.java:312)
com.sun.xml.bind.v2.runtime.XMLSerializer.childAsRoot(XMLSerializer.java:490)
com.sun.xml.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:325)
com.sun.xml.bind.v2.runtime.MarshallerImpl.marshal(MarshallerImpl.java:172)
com.nokia.places.utilities.resteasy.plugins.providers.jaxb.json.JettisonMappedMarshaller.marshal(JettisonMappedMarshaller.java:87)
com.nokia.places.utilities.resteasy.plugins.providers.jaxb.json.JettisonMappedMarshaller.marshal(JettisonMappedMarshaller.java:66)
org.jboss.resteasy.plugins.providers.jaxb.AbstractJAXBProvider.writeTo(AbstractJAXBProvider.java:89)
org.jboss.resteasy.core.ResponseInvoker.writeTo(ResponseInvoker.java:101)
org.jboss.resteasy.core.SynchronousDispatcher.writeJaxrsResponse(SynchronousDispatcher.java:404)
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:365)
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:173)
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:93)
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:68)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
com.nokia.places.api.rest.ContentTypeFilter.doFilter(ContentTypeFilter.java:63)
com.nokia.ovi.rest.debug.DebuggingFilter.doFilter(DebuggingFilter.java:59)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

The error occurs on processing 'timestamp' attribute in last 'name' element in 'alternativeNames'.