maven 编译异常：com.thoughtworks.xstream.converters.ConversionException

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今天用maven编译，报以奇怪异常：

mvn package -Dmaven.test.skip=true

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[INFO] ------------------------------------

[INFO] Trace

com.thoughtworks.xstream.converters.ConversionException: Cannot construct org.ap

ache.maven.plugin.war.util.WebappStructure as it does not have a no-args constru

ctor

---- Debugging information ----

message ? ? ? ? ? ? : Cannot construct org.apache.maven.plugin.war.util.WebappSt

ructure as it does not have a no-args constructor

cause-exception ? ? : com.thoughtworks.xstream.converters.reflection.ObjectAcces

sException

cause-message ? ? ? : Cannot construct org.apache.maven.plugin.war.util.WebappSt

ructure as it does not have a no-args constructor

class ? ? ? ? ? ? ? : org.apache.maven.plugin.war.util.WebappStructure

required-type ? ? ? : org.apache.maven.plugin.war.util.WebappStructure

path ? ? ? ? ? ? ? ?: /webapp-structure

line number ? ? ? ? : 1

-------------------------------

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经查与JDK版本有关，1.7版本会报以上错误。换成1.6，果断成功。

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