I'm guessing that you're getting some html/xml response from the firewall
which is stored and interpreted as the pom by Maven. Have you configured
your mirror (the artifactory instance) in settings.xml correctly?

/Anders
On Mon, May 31, 2010 at 10:05, Kenneth Petersen <[email protected]> wrote:

> I am new to Maven, so please bear with me if the solution to my problem
> seems simple.
>
> I have created a simpel test project using the following pom.xml:
> ***********************
> <project xmlns="http://maven.apache.org/POM/4.0.0"; xmlns:xsi="
> http://www.w3.org/2001/XMLSchema-instance";
>  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
> http://maven.apache.org/xsd/maven-4.0.0.xsd";>
>  <modelVersion>4.0.0</modelVersion>
>
>  <artifactId>test</artifactId>
>  <groupId>dk.lpk.jfuturama</groupId>
>  <version>1.0-SNAPSHOT</version>
>  <packaging>jar</packaging>
>
>  <name>test</name>
> </project>
> ***********************
>
> The module contains only one java-file in the path
> \src\main\java\dk\lpk\jfuturama\App.test:
>
> ***********************
> package dk.lpk.jfuturama;
>
> public interface App {
>    double f(final double x);
> }
> ***********************
>
> When I invoke Maven 2 (v 2.2.1), I get the following message:
> C:\development\src\JFuturama\branches\head\modules\test>mvn package -e
> + Error stacktraces are turned on.
> [INFO] Scanning for projects...
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Building test
> [INFO] task-segment: [package]
> [INFO]
> ------------------------------------------------------------------------
> [INFO]
> ------------------------------------------------------------------------
> [ERROR] BUILD ERROR
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Error building POM (may not be this project's POM).
> Project ID: unknown:maven-resources-plugin
> Reason: Parent: org.apache.maven.plugins:maven-plugins:xml:12 of project:
> unknown:maven-resources-plugin has wrong packaging: xml. Must be 'pom'. for
> project unknown:maven-resources-plugin
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Trace
> org.apache.maven.lifecycle.LifecycleExecutionException: Unable to build
> project for plugin 'org.apache.maven.plugins:maven-resources-plugin':
> Parent: org.apache.maven.plugins:maven-plugins:xml:12 of project:
> unknown:maven-resources-plugin has wrong packaging: xml. Must be 'pom'. for
> project unknown:maven-resources-plugin
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.verifyPlugin(DefaultLifecycleExecutor.java:1557)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.getMojoDescriptor(DefaultLifecycleExecutor.java:1851)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.bindLifecycleForPackaging(DefaultLifecycleExecutor.java:1311)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.constructLifecycleMappings(DefaultLifecycleExecutor.java:1275)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:534)
> 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:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> 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: org.apache.maven.plugin.InvalidPluginException: Unable to build
> project for plugin 'org.apache.maven.plugins:maven-resources-plugin':
> Parent: org.apache.maven.plugins:maven-plugins:xml:12 of project:
> unknown:maven-resources-plugin has wrong packaging: xml. Must be 'pom'. for
> project unknown:maven-resources-plugin
> at
> org.apache.maven.plugin.DefaultPluginManager.checkRequiredMavenVersion(DefaultPluginManager.java:293)
> at
> org.apache.maven.plugin.DefaultPluginManager.verifyVersionedPlugin(DefaultPluginManager.java:205)
> at
> org.apache.maven.plugin.DefaultPluginManager.verifyPlugin(DefaultPluginManager.java:184)
> at
> org.apache.maven.plugin.DefaultPluginManager.loadPluginDescriptor(DefaultPluginManager.java:1642)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.verifyPlugin(DefaultLifecycleExecutor.java:1540)
> ... 19 more
> Caused by: org.apache.maven.project.ProjectBuildingException: Parent:
> org.apache.maven.plugins:maven-plugins:xml:12 of project:
> unknown:maven-resources-plugin has wrong packaging: xml. Must be 'pom'. for
> project unknown:maven-resources-plugin
> at
> org.apache.maven.project.DefaultMavenProjectBuilder.assembleLineage(DefaultMavenProjectBuilder.java:1403)
> at
> org.apache.maven.project.DefaultMavenProjectBuilder.buildInternal(DefaultMavenProjectBuilder.java:823)
> at
> org.apache.maven.project.DefaultMavenProjectBuilder.buildFromRepository(DefaultMavenProjectBuilder.java:255)
> at
> org.apache.maven.plugin.DefaultPluginManager.checkRequiredMavenVersion(DefaultPluginManager.java:277)
> ... 23 more
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Total time: < 1 second
> [INFO] Finished at: Mon May 31 09:57:16 CEST 2010
> [INFO] Final Memory: 1M/15M
> [INFO]
> ------------------------------------------------------------------------
> C:\development\src\JFuturama\branches\head\modules\test>
>
> Maybe I should point out that I, due to firewall restrictions, is required
> to use an in house remote repository. For the time being I have Artifactory
> installed om my own computer.
>
>
> Help in understanding why the error and solving the problem would be much
> appreciated.
>
>
>
> Best regards
> Kenneth Petersen
>

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