JBoss AS - build.bat fails with a MojoExecutionException

[prabugp]

All, I wish to be part of the JBoss community and contribute in whatever ways I can. So, i started out by checking out the source from SVN ( http://anonsvn.jboss.org/repos/jbossas/trunk/build ) and following the readme, executed build.bat. Initially the build failed with outOfMemory errors but then i got around them by setting the MAVEN_OPTS to use Xmx1024m. so, now it is not throwing OutOfMemory.

But i'm getting this error while executing JBoss Application Server Build. It always fails with the error

[ERROR] Failed to execute goal org.codehaus.mojo:license-maven-plugin:1.0-alpha-1-2-jbossorg:download-licenses (default) on project jboss-as-build: Unable to parse license summary output file. NullPointerException -> [Help 1]

org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.mojo:license-maven-plugin:1.0-alpha-1-2-jbossorg:download-licenses (default) on project jboss-as-build: Unable to parse license summary output file.

        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:203)

        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)

        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:140)

        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)

        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)

        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)

        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)

        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:314)

        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:151)

        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:445)

        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:168)

        at org.apache.maven.cli.MavenCli.main(MavenCli.java:132)

        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:290)

        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)

        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)

        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)

Caused by: org.apache.maven.plugin.MojoExecutionException: Unable to parse license summary output file.

        at org.codehaus.mojo.license.DownloadLicensesMojo.loadLicenseInfo(DownloadLicensesMojo.java:241)

        at org.codehaus.mojo.license.DownloadLicensesMojo.execute(DownloadLicensesMojo.java:147)

        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:107)

        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:195)

        ... 19 more

Caused by: java.lang.NullPointerException

        at org.codehaus.mojo.license.DownloadLicensesMojo.loadLicenseInfo(DownloadLicensesMojo.java:232)

        ... 22 more

[ERROR]

[ERROR]

[ERROR] For more information about the errors and possible solutions, please read the following articles:

[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

Press any key to continue . . .

I'm on Win 7, 32bit, 4GB i7 machine. And my source version is 110803, and i'm on the trunk of jboss.

I have been trying to find relevant information on this but so far no fruit. Any light to help me out is appreciated.

P.S: If there are links available to help out a new member to the community in explaining the architecture as well as the standards, frequently faced issues and such, please point me to their direction.

[jaikiran]

If you are planning to help on JBoss AS (7) then here's where you can start http://community.jboss.org/wiki/HackingonAS7

[prabugp]

Thanks Jai.. But i'm curious. I checked out the source from SVN. the article talks about git. which is the correct one?

[jaikiran]

Prabaharan Gopalan wrote:

I checked out the source from SVN. the article talks about git. which is the correct one?

For AS7 it's git. Earlier versions till AS6 (which is currently the latest released version) was in SVN. The next release of AS6 is planned to be 6.1.0 http://community.jboss.org/wiki/AS601StatusExecutiveSummary but currently the major development is happening in AS7.

[jaikiran]

Also, we have IRC channels for discussing anything related to development on JBoss AS:

#jboss-as7 (irc.freenode.net server) for AS7 specific development discussions

#jboss-dev (irc.freenode.net server) for other JBoss specific development discussions

#jboss (irc.freenode.net server) for user questions about JBoss.

Feel free to join those channels.

[jaikiran]

Prabaharan Gopalan wrote:

All, I wish to be part of the JBoss community and contribute in whatever ways I can. So, i started out by checking out the source from SVN ( http://anonsvn.jboss.org/repos/jbossas/trunk/build ) and following the readme, executed build.bat.

By the way, to build AS6 from source, I usually just run the following command from the trunk root:

mvn clean install

You need Maven 3 to build the code. The build.bat just sets up the appropriate paths for Maven binary (which is made available in the tools folder of the source).

If you want to contribute to some bug fixes or something more then feel free to ask here or the IRC channels. For AS6, these are some of the bugs that are currently open https://issues.jboss.org/secure/IssueNavigator.jspa?reset=true&jqlQuery=project+%3D+JBAS+AND+fixVersion+%3D+%226.1.0%22+AND+status+%3D+Open+ORDER+BY+priority+DESC&mode=hide. If any of those interests you, then let us know.

Also, here are a couple of things to get you started with contributing to JBoss:

http://community.jboss.org/wiki/HowToContribute (some info on that wiki might be outdated but you'll get an idea on how things work)

https://www.jboss.org/contribute/

[prabugp]

Thanks a bunch.. i'm on it.. and i'm into AS7. will join the IRCs too.