java – eclipse / maven / sonatype war build在命令行工作但不在eclipse中工作

我的(简单)war项目在命令行使用mvn:package构建良好,但无法使用maven通过sonatype插件在eclipse中构建.
我得到的错误是:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.1-alpha-1:war (default-war) on project shoploops_webapp: Execution default-war of goal org.apache.maven.plugins:maven-war-plugin:2.1-alpha-1:war failed: dependenciesInfo : dependenciesInfo
---- Debugging information ----
message             : dependenciesInfo : dependenciesInfo
cause-exception     : com.thoughtworks.xstream.mapper.CannotResolveClassException
cause-message       : dependenciesInfo : dependenciesInfo
class               : org.apache.maven.plugin.war.util.WebappStructure
required-type       : org.apache.maven.plugin.war.util.WebappStructure
path                : /webapp-structure/dependenciesInfo
line number         : 14

我真的有两个问题
1)如何修复此错误?
2)为什么mvn:package在命令行工作正常,但不能通过插件工作?它们在工作方式上有什么区别,这样会发生这样的错误?

非常感谢!

编辑:在调试模式下运行它的堆栈跟踪:

Caused by: com.thoughtworks.xstream.converters.ConversionException: dependenciesInfo : dependenciesInfo
---- Debugging information ----
message             : dependenciesInfo : dependenciesInfo
cause-exception     : com.thoughtworks.xstream.mapper.CannotResolveClassException
cause-message       : dependenciesInfo : dependenciesInfo
class               : org.apache.maven.plugin.war.util.WebappStructure
required-type       : org.apache.maven.plugin.war.util.WebappStructure
path                : /webapp-structure/dependenciesInfo
line number         : 14
-------------------------------
    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:48)
    at org.apache.maven.plugin.war.AbstractWarMojo.buildWebapp(AbstractWarMojo.java:346)
    at org.apache.maven.plugin.war.AbstractWarMojo.buildExplodedWebapp(AbstractWarMojo.java:317)
    at org.apache.maven.plugin.war.WarMojo.performPackaging(WarMojo.java:166)
    at org.apache.maven.plugin.war.WarMojo.execute(WarMojo.java:130)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:105)
    ... 15 more
Caused by: com.thoughtworks.xstream.mapper.CannotResolveClassException: dependenciesInfo : dependenciesInfo
    at com.thoughtworks.xstream.mapper.DefaultMapper.realClass(DefaultMapper.java:49)
    at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
    at com.thoughtworks.xstream.mapper.ClassAliasingMapper.realClass(ClassAliasingMapper.java:76)
    at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
    at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
    at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
    at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
    at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
    at com.thoughtworks.xstream.mapper.DynamicProxyMapper.realClass(DynamicProxyMapper.java:60)
    at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
    at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
    at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
    at com.thoughtworks.xstream.mapper.ArrayMapper.realClass(ArrayMapper.java:76)
    at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
    at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
    at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
    at com.thoughtworks.xstream.mapper.CachingMapper.realClass(CachingMapper.java:34)
    at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.determineType(AbstractReflectionConverter.java:296)
    at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doUnmarshal(AbstractReflectionConverter.java:178)
    at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:125)
    at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:56)
    ... 28 more
最佳答案

Why does mvn:package work fine at the command line, but not through the plugin? What is the difference between them in how they work, such that errors like this can occur?

简短的版本是m2eclipse不使用你在命令行使用的相同版本,除非你告诉他这样做(这将是我的建议).如果你想知道,m2eclipse使用嵌入式Maven 3(Maven Embedder 3.0.0.200912160759).

How can I fix this error?

实际上,问题记录在http://jira.codehaus.org/browse/MWAR-187中,它提供了几种解决方法.

>将maven-war-plugin降级为2.1-alpha-1
>通过修改maven-war-plugin配置来停用缓存

<configuration>
  <useCache>false</useCache>
</configuration>

我认为将M2Eclipse配置为不使用Maven Embedder(但您在CLI上使用的版本)也可以解决问题,这是我的建议.你会在Window>中找到这个设置.偏好> Maven的.

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