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

Question

我的（簡單）war項目在命令行使用mvn：package構建良好，但無法使用maven通過sonatype插件在eclipse中構建。 我得到的錯誤是：

[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

我真的有兩個問題1）我該如何解決這個錯誤？ 2）為什么mvn：package在命令行工作正常，但不能通過插件工作？ 它們在工作方式上有什么區別，這樣會發生這樣的錯誤？

非常感謝！

編輯 ：在調試模式下運行它的堆棧跟蹤：

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

Answer 1

為什么mvn:package在命令行工作正常，而不是通過插件？ 它們在工作方式上有什么區別，這樣會發生這樣的錯誤？

簡短的版本是，m2eclipse的不使用，除非你告訴他這樣做（這將是我的建議），您在命令行中使用相同的版本。 如果你想知道，m2eclipse使用嵌入式Maven 3（Maven Embedder 3.0.0.200912160759）。

我該如何解決這個錯誤？

實際上，問題記錄在http://jira.codehaus.org/browse/MWAR-187中 ，它提供了幾種解決方法。

• 將maven-war-plugin降級為2.1-alpha-1

• 通過修改maven-war-plugin配置來停用緩存

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

我認為將M2Eclipse配置為不使用Maven Embedder（但您在CLI上使用的版本）也可以解決問題，這是我的建議。 您可以在Window> Preferences> Maven中找到此設置。

Answer 2

我遇到了同樣的問題，但做了mvn install 。 在命令行工作正常，但Eclipse失敗了。

實際發生的事實是我的webapp-cache.xml文件顯然已損壞。 我解決了運行mvn clean install的問題。

Answer 3

您需要轉到preferences->maven->installation並選擇外部安裝。 我正在使用springource工具套件。 但是maven配置路徑在其他日食種類中應該是相同的。