title: Cannot construct org.apache.maven.plugin.war.util.WebappStructure as it does not have a no-args constructor
body: <pre><code>[INFO] [war:war {execution: default-war}]
  [INFO] Packaging webapp
  [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 com.thoughtworks.xstream.core.ReferenceByXPathMarshallingStrategy.unmarshal(ReferenceByXPathMarshallingStrategy.java:29)
      at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:846)
      at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:833)
      at com.thoughtworks.xstream.XStream.fromXML(XStream.java:781)
      at org.apache.maven.plugin.war.util.WebappStructureSerializer.fromXml(WebappStructureSerializer.java:73)
      at org.apache.maven.plugin.war.AbstractWarMojo.buildWebapp(AbstractWarMojo.java:404)
      at org.apache.maven.plugin.war.AbstractWarMojo.buildExplodedWebapp(AbstractWarMojo.java:375)
      at org.apache.maven.plugin.war.WarMojo.performPackaging(WarMojo.java:181)
      at org.apache.maven.plugin.war.WarMojo.execute(WarMojo.java:143)
      at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
      at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
      at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556)
      at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535)
      at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
      at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
      at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
      at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
      at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
      at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
      at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:601)
      at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
      at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
      at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
      at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
  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)
      ... 31 more
  [INFO] ------------------------------------------------------------------------
  [INFO] Total time: 4 seconds
  [INFO] Finished at: Sat Sep 24 17:25:45 CEST 2011
  [INFO] Final Memory: 15M/37M
  [INFO] ------------------------------------------------------------------------
  </code></pre>
  <p><strong>JDK: 1.7</strong></p>
  <p><strong>Maven compiler Plugin:</strong></p>
  <pre><code>&lt;plugin&gt;
      &lt;groupId&gt;org.apache.maven.plugins&lt;/groupId&gt;
      &lt;artifactId&gt;maven-compiler-plugin&lt;/artifactId&gt;
      &lt;version&gt;2.3.2&lt;/version&gt;
  &lt;/plugin&gt;
  </code></pre>
  <p>When I run <code>install target</code> above error occurs, how can I resolve it?</p>