First off, I am new to this community. So, if i'm not doing something right, forgive me and help me save myself from having to apologize in the future. 

I did a git clone of the master (from git@github.com:<user>/jboss-as.git) and did a build install. I am getting a compilation error in the messaging subsystem. I don't have maven installed on my machine. And uses the one comes with jboss. Everything till the messaging subsystem is building properly. 

I am on a 32-bit Win7 machine. And, i could also use any link that explains the overall architecture and how all these components interact with each other. 

the stacktrace below:

[INFO] JBoss Application Server: Messaging Subsystem ..... FAILURE [3.750s]
[INFO] JBoss Application Server: OSGi Config Admin ....... SKIPPED
[INFO] JBoss Application Server: Security Subsystem ...... SKIPPED
[INFO] JBoss Application Server: Remoting Subsystem ...... SKIPPED
[INFO] JBoss Application Server: Service Archive Subsystem  SKIPPED
[INFO] JBoss Application Server: Web Services Subsystem .. SKIPPED
[INFO] JBoss Application Server: Web Services Server Integration Subsystem  SKIPPED
[INFO] JBoss Application Server: Build ................... SKIPPED
[INFO] JBoss Application Server: Arquillian: Common Container  SKIPPED
[INFO] JBoss Application Server: Arquillian: Embedded Container  SKIPPED
[INFO] JBoss Application Server: Arquillian: Managed Container  SKIPPED
[INFO] JBoss Application Server: Arquillian: Remote Container  SKIPPED
[INFO] JBoss Application Server: Demos ................... SKIPPED
[INFO] JBoss Application Server: Microcontainer Subsystem  SKIPPED
[INFO] JBoss Application Server: OSGi Integration Plugin . SKIPPED
[INFO] JBoss Application Server: Test Suite: Aggregator .. SKIPPED
[INFO] JBoss Application Server: Test Suite: Smoke Tests . SKIPPED
[INFO] JBoss Application Server: Web Services Tests Integration Subsystem  SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.965s
[INFO] Finished at: Wed Mar 02 08:39:04 IST 2011
[INFO] Final Memory: 33M/59M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.1:testCompile (default-testCompile) on project jboss-as-messaging: Compilation failure
[ERROR] \Praba\Work\Workspaces\jboss-as\messaging\src\test\java\org\jboss\as\messaging\test\SubsystemParsingUnitTestCase.java:[87,56] cannot find symbol
[ERROR] symbol  : method newFactory()
[ERROR] location: class javax.xml.stream.XMLInputFactory
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.1:testCompile (default-testCompile) on project jboss-as-messaging: Compila
\Praba\Work\Workspaces\jboss-as\messaging\src\test\java\org\jboss\as\messaging\test\SubsystemParsingUnitTestCase.java:[87,56] cannot find symbol
symbol  : method newFactory()
location: class javax.xml.stream.XMLInputFactory


        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:213)
        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: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:319)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:534)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
        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.CompilationFailureException: Compilation failure
\Praba\Work\Workspaces\jboss-as\messaging\src\test\java\org\jboss\as\messaging\test\SubsystemParsingUnitTestCase.java:[87,56] cannot find symbol
symbol  : method newFactory()
location: class javax.xml.stream.XMLInputFactory


        at org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:613)
        at org.apache.maven.plugin.TestCompilerMojo.execute(TestCompilerMojo.java:146)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:107)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
        ... 19 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/MojoFailureException
Press any key to continue . . .


--
with luv,
GP.