Question

[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] ------------------------------------------------------------------------

JDK: 1.7

Maven compiler Plugin:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>2.3.2</version>
</plugin>

当我操作<条码>所有目标出现上述错误时,我如何解决这个问题?

Answer 1

也许正在使用。参看 2.1.1 maven war plugin应当使用。

将以下内容列入您的日程。

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

Answer 2

在填写<代码>mvn >时,我有这个问题。我通过首先使用<代码>mvn Clean,然后是mvnstal>。



采用2.1.1, JDK 1.7.0.45。

Answer 3

经确认:JDK7和Maven 2.x将产生这一错误。

我正在使用Maven 2.2.1和JDK7,并发现这一错误。我将JDK改为1.6版,并处以工作罚款。

Answer 4

试图改变JDK版本和Maven版本,而不是改变这种版本:

<plugin>
    <artifactId>maven-compiler-plugin</artifactId>
    <configuration>
        <source>1.7</source>
        <target>1.7</target>
    </configuration>
    <version>2.3.2</version>
</plugin>

Answer 5

经确认,我与3.0.2和1.7.0_02号。在对jdk 1.6.0_30进行交易后,它只汇编了罚款。

Answer 6

I don t think the version was the problem. I solved deleting my target folder (because it contains webapp-cache.xml) and doing Maven install again.

Answer 7

3.0.0 解决了所有问题:

<artifactId>maven-war-plugin</artifactId>
<version>3.0.0</version>

如果你使用jdk 1.6, 1.7或1.8

Answer 8


这显然与假肢、图书馆和语文版本不一致有关。

两年后,即两个 Java版本之后,我在对春和温伯旧书进行抽样调查时,有同样的错误。

我之所以能够解决这一错误,是评论了所有版本的ache子,把 Java版本定为1.8。 让我知道,图书馆的最新版本是最大的版本,而Maven的一些警告是缺乏版本的标签。 如果你注意这些警告,你可以把版本的标签确定为最新版本,Maven的警告应当消失。

当时,我安装了<条码>mvn Clean Pack,然后是mvn Pack/code>。



<plugin>
     <groupId>org.apache.maven.plugins</groupId>
     <artifactId>maven-war-plugin</artifactId>
<!-- <version>2.1-beta-1</version> -->
</plugin>
<plugin>
     <groupId>org.apache.maven.plugins</groupId>
     <artifactId>maven-compiler-plugin</artifactId>
<!-- <version>2.1</version> -->
     <configuration>
          <source>1.8</source>
          <target>1.8</target>
     </configuration>
</plugin>

Answer 9

如果您使用jdk 1.6 的话,在您的日程上添加这一句子。

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>2.0.2</version>
    <configuration>
        <source>1.6</source>
        <target>1.6</target>
        <compilerArgument>-Xlint:all</compilerArgument>
        <showWarnings>true</showWarnings>
        <showDeprecation>true</showDeprecation>
    </configuration>
</plugin>

Answer 10

我把这个问题交给了我的ec。我一移至4.4(Luna)就走了。问题必须是ec片加固的玉米。

我对JDK 1.7和1.8进行了审判。无差别。

Answer 11


对我来说,改观的原始版本不能解决假象问题,而改变的JDK版本则不在我的控制之下。

但是,在<代码>mvn tomcat6:deploy之前,可使用<>mvn Clean。这个问题已经解决。

Answer 12

Make sure to have the JDK version in your Build path and the version specified in the source tag match the same.

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>2.1</version>
    <configuration>
     **<source>1.7</source>**
       <target>1.7</target>
       <debug>true</debug>
    </configuration>
</plugin> `

我在源头上把1.7和“1.6”捆绑起来,当时我把这个版本改正为1.7,在源头上解决问题。

Execute mnv clean and mvn package.

Answer 13

Try to delete all your cache. When i deleted target folder, it works fine.

(目标夹是把所有汇编成册的集束)

Answer 14

我在把我的java版本从8个升级到8个左右之后,就犯了同样的错误,这样一来,我就把它固定在1个 p上。右点击和gt; 2. org.apache.maven的类型,然后看着战争的花.,添加并节省,然后简单清理和安装。它应当发挥作用。

Answer 15

使用这种微粒

<plugin>

<artifactId>maven-war-plugin</artifactId>

<version>3.2.2</version>

</plugin>

Example pom.xml

https://i.stack.imgur.com/lzoa3.png”rel=“nofollow noreferer”>pom.xmlook ......

Answer 16

Use this below plugin to get rid of this issue ( Latest ) and refer this

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.10.1</version>
            <configuration>
                <source>11</source>
                <target>11</target>
            </configuration>
        </plugin>
    </plugins>
    <finalName>SampleProject</finalName>
</build>

友情链接