[maven] Cannot ... WebappStructure as it does not have a no-args constructor

[INFO] [war:war {execution: default-war}]
[INFO] Packaging webapp
[HUDSON] Archiving C:\eGovFrameSvr\hudson\jobs\ok.egov\workspace\pom.xml to C:\eGovFrameSvr\hudson\jobs\ok.egov\modules\ok$egov\builds\2013-07-02_07-12-51\archive\ok\egov\1.0.0\pom.xml
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Cannot construct org.apache.maven.plugin.war.util.WebappStructure as it does not have a no-args constructor
---- Debugging information ----
message             : Cannot construct org.apache.maven.plugin.war.util.WebappStructure as it does not have a no-args constructor
cause-exception     : com.thoughtworks.xstream.converters.reflection.ObjectAccessException
cause-message       : Cannot construct org.apache.maven.plugin.war.util.WebappStructure 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
-------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Trace
com.thoughtworks.xstream.converters.ConversionException: Cannot construct org.apache.maven.plugin.war.util.WebappStructure as it does not have a no-args constructor
---- Debugging information ----
message             : Cannot construct org.apache.maven.plugin.war.util.WebappStructure as it does not have a no-args constructor
cause-exception     : com.thoughtworks.xstream.converters.reflection.ObjectAccessException
cause-message       : Cannot construct org.apache.maven.plugin.war.util.WebappStructure 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
-------------------------------
	at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:63)
	at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:45)
	at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:46)
	at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:117)
	...
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:722)
Caused by: com.thoughtworks.xstream.converters.reflection.ObjectAccessException: Cannot construct org.apache.maven.plugin.war.util.WebappStructure as it does not have a no-args constructor
	at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.newInstance(PureJavaReflectionProvider.java:59)
	at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.instantiateNewInstance(AbstractReflectionConverter.java:257)
	at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:124)
	at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:56)
	... 43 more
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4 seconds
[INFO] Finished at: Tue Jul 02 07:12:57 KST 2013
[INFO] Final Memory: 20M/49M
[INFO] ------------------------------------------------------------------------
channel stopped
Finished: FAILURE

이 에러 메시지는 maven war plugin 이 Java7을 지원하지 못하기 때문이라고 합니다. jdk1.6으로 내리거나 아래 플러그인을 pom.xml에 추가해야 합니다.

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-war-plugin</artifactId>
    <version>2.1.1</version>
</plugin>

from: http://stackoverflow.com/questions/7539970/cannot-construct-org-apache-maven-plugin-war-util-webappstructure-as-it-does-not