Comments on: Flex, Spring and BlazeDS: the full stack! (Part 2)

By: Christian

Christian — Thu, 11 Mar 2010 08:32:00 +0000

Caius Swopes Thanks. You saved me countless of hours looking for the solution. Thanks.

By: mikew909

mikew909 — Thu, 11 Mar 2010 03:28:00 +0000

Hi thanks Caius that fixed the problem for me

nice article!

By: Caius Swopes

Caius Swopes — Thu, 11 Mar 2010 20:23:00 +0000

Change the flex-compiler-mojo plugin to have a version value of
1.0-beta7 instead of
1.0-beta3

that solved the null id error for me.

By: sjlyoung

sjlyoung — Thu, 11 Mar 2010 16:40:00 +0000

I had same problem as many others -
[INFO] id can not be null
– and I tried reverting back to Maven 2.0.8 – everything then worked fine. Maybe later versions are stricter in pom syntax?
It’s a workaround, not a solution.
I’d be interested to know underlying fault though as I don’t want to get stuck on 2.0.8

By: csaner

csaner — Thu, 11 Mar 2010 11:43:00 +0000

[INFO] ————————————————————————
[INFO] Total time: mvn –version
Apache Maven 2.1.0 (r755702; 2009-03-18 21:10:27+0200)
Java version: 1.6.0_13
Java home: C:\java_cansaner\j2ee\jdk\jre
Default locale: en_US, platform encoding: Cp1252
OS name: “windows xp” version: “5.1″ arch: “x86″ Family: “windows”
**********************************************************************

By: csaner

csaner — Thu, 11 Mar 2010 11:41:00 +0000

Very interesting article but I am getting the same error with Shahzad and mike :(

I made this from todolist directory after I changed everything as mentioned:
**********************************************************************
C:\hanzo\todolist>mvn install
[INFO] Scanning for projects…
[INFO] Reactor build order:
[INFO] todolist
[INFO] todolist-ria Maven Flex
[INFO] ————————————————————————
[ERROR] FATAL ERROR
[INFO] ————————————————————————
[INFO] id can not be null
[INFO] ————————————————————————
[INFO] Trace
java.lang.NullPointerException: id can not be null
at org.apache.maven.wagon.repository.Repository.(Repository.java:81)
at org.apache.maven.artifact.repository.DefaultArtifactRepository.(DefaultArtifactRepository.java:70)
at org.apache.maven.artifact.repository.DefaultArtifactRepositoryFactory.createDeploymentArtifactRepository(DefaultArtifactRepositoryFactory.java:44)
at org.apache.maven.project.ProjectUtils.buildDeploymentArtifactRepository(ProjectUtils.java:80)
at org.apache.maven.project.DefaultMavenProjectBuilder.processProjectLogic(DefaultMavenProjectBuilder.java:1038)
at org.apache.maven.project.DefaultMavenProjectBuilder.buildInternal(DefaultMavenProjectBuilder.java:880)
at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromRepository(DefaultMavenProjectBuilder.java:255)
at org.apache.maven.plugin.DefaultPluginManager.checkRequiredMavenVersion(DefaultPluginManager.java:270)
at org.apache.maven.plugin.DefaultPluginManager.verifyVersionedPlugin(DefaultPluginManager.java:198)
at org.apache.maven.plugin.DefaultPluginManager.verifyPlugin(DefaultPluginManager.java:177)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.verifyPlugin(DefaultLifecycleExecutor.java:1517)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.findArtifactTypeHandlers(DefaultLifecycleExecutor.java:1434)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.findExtensions(DefaultLifecycleExecutor.java:218)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:179)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:356)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:137)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:356)
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)
[INFO] ————————————————————————
[INFO] Total time: mvn –version
Apache Maven 2.1.0 (r755702; 2009-03-18 21:10:27+0200)
Java version: 1.6.0_13
Java home: C:\java_cansaner\j2ee\jdk\jre
Default locale: en_US, platform encoding: Cp1252
OS name: “windows xp” version: “5.1″ arch: “x86″ Family: “windows”
**********************************************************************

Thanks advance if you can see what is the problem :)

By: Shahzad

Shahzad — Thu, 11 Mar 2010 08:53:00 +0000

I followed post from VELO and downloaded the application from the URL given above by him and it works for me. But as a surprise, it won’t work well after I follow all steps again. Although, I wasn’t able to find much differences in the project provided by VELO and created using steps in this blog.

By: mike

mike — Thu, 11 Mar 2010 05:59:00 +0000

howdy.. interesting article.. same error as Shazad tho..

[ERROR] FATAL ERROR
[INFO] ————————————————————————
[INFO] id can not be null

anyone else experiencing that? (Maven 2.21)

cheers!

By: VELO

VELO — Thu, 11 Mar 2010 20:39:00 +0000

BTW, based on sebastien stacks I made a reference application for flexmojos:
https://docs.sonatype.org/display/FLEXMOJOS/Reference+application

It does use flexmojos 3, the stack was made using flexmojos 1, may be you wanna take a look.

VELO

By: VELO

VELO — Thu, 11 Mar 2010 14:16:00 +0000

Hrmmm, not related…

Well, my next thought is there is something wrong on your settings.xml or pom.xml…. a server w/o id, or a repository entry w/o id, honestly I never saw this error.

But take a look on settings and pom… I guess some entry there is missing the ID.

VELO