NullPointerException building

I don't have much info, except the null pointer exception.

[INFO] Scanning for projects...
[INFO] Reactor build order:
[INFO] oros
[INFO] oros rmi component
[INFO] oros web component
[INFO] Searching repository for plugin with prefix: 'tomcat'.
[INFO] ------------------------------------------------------------------------
[INFO] Building oros
[INFO] task-segment: [package, tomcat:undeploy, tomcat:deploy]
[INFO] ------------------------------------------------------------------------
[INFO] [site:attach-descriptor]
[INFO] [tomcat:undeploy]
[INFO] Skipping non-war project
[INFO] Preparing tomcat:deploy
[INFO] [site:attach-descriptor]
[INFO] [tomcat:deploy]
[INFO] Skipping non-war project
[INFO] ------------------------------------------------------------------------
[INFO] Building oros rmi component
[INFO] task-segment: [package, tomcat:undeploy, tomcat:deploy]
[INFO] ------------------------------------------------------------------------
[INFO] [resources:resources]
[WARNING] File encoding has not been set, using platform encoding ANSI_X3.4-1968, i.e. build is platform dependent!
[WARNING] Using platform encoding (ANSI_X3.4-1968 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 5 resources
[INFO] [compiler:compile]
[INFO] Compiling 1 source file to /data/MyDocuments/java/oros/oros-gcap/rmi/target/classes
[INFO] [rmic:rmic

{execution: rmi compilation}

]
[INFO] Compiling 1 remote classes
[INFO] [resources:testResources]
[WARNING] Using platform encoding (ANSI_X3.4-1968 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /data/MyDocuments/java/oros/oros-gcap/rmi/src/test/resources
[INFO] [compiler:testCompile]
[INFO] Not compiling test sources
[INFO] [surefire:test]
[INFO] Tests are skipped.
[INFO] [jar:jar]
[INFO] Building jar: /data/MyDocuments/java/oros/oros-gcap/rmi/target/oros-rmi.jar
[INFO] [rmic:package

{execution: rmi package}

]
[INFO] Building RMI stub jar: /data/MyDocuments/java/oros/oros-gcap/rmi/target/oros-rmi-client.jar
[INFO] Building jar: /data/MyDocuments/java/oros/oros-gcap/rmi/target/oros-rmi-client.jar
[INFO] [tomcat:undeploy]
[INFO] Skipping non-war project
[INFO] Preparing tomcat:deploy
[INFO] [resources:resources]
[WARNING] File encoding has not been set, using platform encoding ANSI_X3.4-1968, i.e. build is platform dependent!
[WARNING] Using platform encoding (ANSI_X3.4-1968 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 5 resources
[INFO] [compiler:compile]
[INFO] Nothing to compile - all classes are up to date
[INFO] [rmic:rmic

{execution: rmi compilation}

]
[INFO] No out of date rmi classes to process.
[INFO] [resources:testResources]
[WARNING] Using platform encoding (ANSI_X3.4-1968 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /data/MyDocuments/java/oros/oros-gcap/rmi/src/test/resources
[INFO] [compiler:testCompile]
[INFO] Not compiling test sources
[INFO] [surefire:test]
[INFO] Tests are skipped.
[INFO] [jar:jar]
[INFO] Building jar: /data/MyDocuments/java/oros/oros-gcap/rmi/target/oros-rmi.jar
[INFO] [rmic:package

{execution: rmi package}

]
[INFO] Building RMI stub jar: /data/MyDocuments/java/oros/oros-gcap/rmi/target/oros-rmi-client.jar
[INFO] Building jar: /data/MyDocuments/java/oros/oros-gcap/rmi/target/oros-rmi-client.jar
[INFO] [tomcat:deploy]
[INFO] Skipping non-war project
[INFO] ------------------------------------------------------------------------
[INFO] Building oros web component
[INFO] task-segment: [package, tomcat:undeploy, tomcat:deploy]
[INFO] ------------------------------------------------------------------------
[INFO] [resources:resources]
[WARNING] File encoding has not been set, using platform encoding ANSI_X3.4-1968, i.e. build is platform dependent!
[WARNING] Using platform encoding (ANSI_X3.4-1968 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 3 resources
[INFO] Copying 5 resources
[INFO] [compiler:compile]
[INFO] Nothing to compile - all classes are up to date
[INFO] [resources:testResources]
[WARNING] Using platform encoding (ANSI_X3.4-1968 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /data/MyDocuments/java/oros/oros-gcap/web/src/test/resources
[INFO] [compiler:testCompile]
[INFO] Not compiling test sources
[INFO] [surefire:test]
[INFO] Tests are skipped.
[INFO] [war:war]
[INFO] Packaging webapp
[INFO] Assembling webapp[web] in [/data/MyDocuments/java/oros/oros-gcap/web/target/oros]
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] null
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.NullPointerException
at org.apache.maven.plugin.war.util.WebappStructure.getDependencies(WebappStructure.java:109)
at org.apache.maven.plugin.war.util.WebappStructure.analyseDependencies(WebappStructure.java:288)
at org.apache.maven.plugin.war.packaging.DependenciesAnalysisPackagingTask.performPackaging(DependenciesAnalysisPackagingTask.java:46)
at org.apache.maven.plugin.war.AbstractWarMojo.buildWebapp(AbstractWarMojo.java:439)
at org.apache.maven.plugin.war.AbstractWarMojo.buildExplodedWebapp(AbstractWarMojo.java:375)
at org.apache.maven.plugin.war.WarMojo.performPackaging(WarMojo.java:181)
at org.apache.maven.plugin.war.WarMojo.execute(WarMojo.java:143)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:453)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:559)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:500)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:479)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:331)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:292)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:142)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:301)
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:324)
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: 16 seconds
[INFO] Finished at: Thu Apr 09 09:56:24 GMT-07:00 2009
[INFO] Final Memory: 30M/61M
[INFO] ------------------------------------------------------------------------