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From "Ringo De Smet (JIRA)" <>
Subject [jira] Commented: (CONTINUUM-1808) Maven2 POM validation errors should end up in the Output text field of the Build results!
Date Tue, 24 Jun 2008 08:42:26 GMT


Ringo De Smet commented on CONTINUUM-1808:

A bit more info on our project setup: all projects refer to a main POM. Dependencies in a
project only define the groupId and artifactId. The main POM has an extensive dependenyManagement
section wherein Maven finds all the remaining information like version, classifiers, types,
etc for each of the project dependencies.

In the failing project above, I forgot to define this section for project srv.location.location
in the dependencyManagement, while I added this artifact as a dependency in the (now failing)

Hope this helps to validate a future fix in a test-case project setup.

> Maven2 POM validation errors should end up in the Output text field of the Build results!
> -----------------------------------------------------------------------------------------
>                 Key: CONTINUUM-1808
>                 URL:
>             Project: Continuum
>          Issue Type: Improvement
>          Components: Integration - Maven 2
>    Affects Versions: 1.1
>            Reporter: Ringo De Smet
>             Fix For: 1.2
> Hello,
> One of our Maven2 projects started to fail on Continuum. When I checked the Builds page,
there were always pairs of entries with a few seconds between them. For each of these pairs
of build results, the former was always in Error, while the latter (most recent build) was
always in Failure.
> The log of the error build was this:
> org.codehaus.plexus.taskqueue.execution.TaskExecutionException: Error executing action
> 	at org.apache.maven.continuum.buildcontroller.DefaultBuildController.performAction(
> 	at
> 	at org.apache.maven.continuum.buildcontroller.BuildProjectTaskExecutor.executeTask(
> 	at org.codehaus.plexus.taskqueue.execution.ThreadedTaskQueueExecutor$ExecutorRunnable$
> 	at$
> 	at
> 	at$Worker.runTask(
> 	at$
> 	at
> Caused by: org.apache.maven.continuum.execution.ContinuumBuildExecutorException: Error
while mapping metadata:add.project.validation.error
> add.project.project.building.error
> add.project.unknown.error
> 	at org.apache.maven.continuum.execution.maven.m2.MavenTwoBuildExecutor.updateProjectFromCheckOut(
> 	at org.apache.maven.continuum.core.action.UpdateProjectFromWorkingDirectoryContinuumAction.execute(
> 	at org.apache.maven.continuum.buildcontroller.DefaultBuildController.performAction(
> 	... 8 more
> The log of the failure build was this:
> + Error stacktraces are turned on.
> Maven version: 2.0.8
> Java version: 1.4.2_08
> OS name: &quot;sunos&quot; version: &quot;5.10&quot; arch: &quot;sparc&quot;
Family: &quot;unix&quot; [DEBUG] Building Maven user-level plugin registry from: '/home/Dci/.m2/plugin-registry.xml'
> [DEBUG] Building Maven global-level plugin registry from: '/dvp/lib/sft/maven/install/2.0.8/conf/plugin-registry.xml'
> [INFO] Scanning for projects...
> [INFO] ------------------------------------------------------------------------
> [INFO] Building Maven Default Project
> [INFO]    task-segment: [clean, deploy, site]
> [INFO] ------------------------------------------------------------------------
> [DEBUG] maven-clean-plugin: resolved to version 2.2 from repository central [DEBUG] Retrieving
parent-POM: org.apache.maven.plugins:maven-plugins::10 for project: null:maven-clean-plugin:maven-plugin:2.2
from the repository.
> [DEBUG] Retrieving parent-POM: org.apache.maven:maven-parent::7 for project: org.apache.maven.plugins:maven-plugins:pom:10
from the repository.
> [DEBUG] Retrieving parent-POM: org.apache:apache::4 for project: org.apache.maven:maven-parent:pom:7
from the repository.
> [INFO] ------------------------------------------------------------------------
> [INFO] ------------------------------------------------------------------------
> [INFO] Cannot execute mojo: clean. It requires a project with an existing pom.xml, but
the build is not using one.
> [INFO] ------------------------------------------------------------------------
> [DEBUG] Trace
> org.apache.maven.lifecycle.LifecycleExecutionException: Cannot execute mojo: clean. It
requires a project with an existing pom.xml, but the build is not using one.
> 	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(
> 	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(
> 	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(
> 	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(
> 	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(
> 	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(
> 	at org.apache.maven.DefaultMaven.doExecute(
> 	at org.apache.maven.DefaultMaven.execute(
> 	at org.apache.maven.cli.MavenCli.main(
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(
> 	at java.lang.reflect.Method.invoke(
> 	at org.codehaus.classworlds.Launcher.launchEnhanced(
> 	at org.codehaus.classworlds.Launcher.launch(
> 	at org.codehaus.classworlds.Launcher.mainWithExitCode(
> 	at org.codehaus.classworlds.Launcher.main(
> Caused by: org.apache.maven.plugin.MojoExecutionException: Cannot execute mojo: clean.
It requires a project with an existing pom.xml, but the build is not using one.
> 	at org.apache.maven.plugin.DefaultPluginManager.executeMojo(
> 	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(
> 	... 16 more
> [INFO] ------------------------------------------------------------------------
> [INFO] Total time: &lt; 1 second
> [INFO] Finished at: Tue Jun 24 08:35:33 CEST 2008 [INFO] Final Memory: 1M/4M [INFO] ------------------------------------------------------------------------
> If I look at the Working copy, there is no pom.xml file, so I was quite puzzled. The
CVS repository *does* contain the pom.xml and a checkout of the project to my local workstation
was completely OK.
> I finally found the error in the wrapper.log. The POM used a property to resolve a dependency
version that was undefined in the parent pom, leading to validation errors. This error message
should definitely end up in the Output textfield of a Build results page in the webfrontend!!!
> INFO   | jvm 1    | 2008/06/24 08:35:31 | 2008-06-24 08:35:31,497 [pool-1-thread-1] ERROR
org.apache.maven.continuum.execution.maven.m2.MavenBuilderHelper:default  - Cannot build maven
project from /dvp_loc_ci_00_00/dvp/loc/rts/ci/working-directory/53/pom.xml (Failed to validate
> INFO   | jvm 1    | 2008/06/24 08:35:31 | 'dependencies.dependency.version' is missing
for be.telenet:srv.location.location
> Another remark: having two entries in the Build results page for a build I triggered
once made me believe that there were two copies of Continuum running, with the error coming
from concurrent access of the working copy. A build failure should only end up in one build
> Greetz, 
> Ringo De Smet

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