webservices复杂类型值传递

Caused by: com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 2 counts of IllegalAnnotationExceptions
java.util.Map is an interface,and JAXB can't handle interfaces.
	this problem is related to the following location:
		at java.util.Map
		at private java.util.Map com.test.service.jaxws_asm.Update.arg2
		at com.test.service.jaxws_asm.Update
java.util.Map does not have a no-arg default constructor.
	this problem is related to the following location:
	at java.util.Map
	at private java.util.Map com.test.service.jaxws_asm.Update.arg2
	at com.test.service.jaxws_asm.Update
	at com.sun.xml.bind.v2.runtime.IllegalAnnotationsException$Builder.check(IllegalAnnotationsException.java:102)
	at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:472)
	at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:302)
	at com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1140)
	at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:154)
	at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:121)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:202)
	at javax.xml.bind.ContextFinder.find(ContextFinder.java:363)
	at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:574)
	at org.apache.cxf.common.jaxb.JAXBContextCache$2.run(JAXBContextCache.java:268)
	at org.apache.cxf.common.jaxb.JAXBContextCache$2.run(JAXBContextCache.java:267)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.apache.cxf.common.jaxb.JAXBContextCache.createContext(JAXBContextCache.java:266)
	at org.apache.cxf.common.jaxb.JAXBContextCache.getCachedContextAndSchemas(JAXBContextCache.java:172)
	at org.apache.cxf.jaxb.JAXBDataBinding.createJAXBContextAndSchemas(JAXBDataBinding.java:427)
	at org.apache.cxf.jaxb.JAXBDataBinding.initialize(JAXBDataBinding.java:295)
	... 47 more