如何解决Maven中未知工件类型[test-jar]错误？

Question

我在尝试使用Maven构建ear时遇到了这个错误。

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-ear-plugin:2.4.2:generate-application-xml (default-generate-application-xml) on project cargooceanear: Failed to initialize ear modules: Unknown artifact type[tes
t-jar] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-ear-plugin:2.4.2:generate-application-xml (default-generate-application-xml) on project cargooceanear: Failed to i
nitialize ear modules
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:216)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:108)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:76)
        at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:116)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:361)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:213)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:157)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.MojoExecutionException: Failed to initialize ear modules
        at org.apache.maven.plugin.ear.AbstractEarMojo.execute(AbstractEarMojo.java:240)
        at org.apache.maven.plugin.ear.GenerateApplicationXmlMojo.execute(GenerateApplicationXmlMojo.java:85)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:133)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
        ... 19 more
Caused by: org.apache.maven.plugin.ear.UnknownArtifactTypeException: Unknown artifact type[test-jar]
        at org.apache.maven.plugin.ear.util.ArtifactTypeMappingService.getStandardType(ArtifactTypeMappingService.java:151)
        at org.apache.maven.plugin.ear.EarModuleFactory.newEarModule(EarModuleFactory.java:74)
        at org.apache.maven.plugin.ear.AbstractEarMojo.execute(AbstractEarMojo.java:230)
        ... 22 more

Answer 1

问题：maven-ear-plugin给出一个错误:[INFO]无法初始化ear模块嵌入错误：未知工件类型[zip]

原因：可传递依赖项中的zip或不支持的文件

解决方法：在windows中，先打开项目的cmd、cd根目录，然后在cmd中键入mvn dependency:tree，查找与marven-ear-plugin冲突的可传递依赖项。

例如，未知zip+-com.sun.xml.ws:samples:zip:2.2.10:compile means

<groupId>com.sun.xml.ws</groupId>
<artifactId>samples</artifactId>

例如，更改ear POM：将排除放在依赖项中

<dependency>
<groupId>com.sun.xml.ws</groupId>
<artifactId>jaxws-ri</artifactId>
... 
<exclusions>
<exclusion>     
<groupId>com.sun.xml.ws</groupId>       
<artifactId>samples</artifactId>          
</exclusion>          
... 
</exclusions>
</dependency>

与+-com.sun.xml.ws相同：release-documentation：zip