mvn clean install failure

[JeffKingCN]

root@ubuntu-vm:/opt/sip-servlets-sip-servlets-release-2.1.547/sip-servlets-examples/diameter-openims# mvn clean install
[INFO] Scanning for projects...
Downloading: http://download.java.net/maven/2//org/mobicents/servlet/sip/examples/sip-servlets-examples-parent/3.0.0-SNAPSHOT/sip-servlets-examples-parent-3.0.0-SNAPSHOT.pom
Downloading: https://oss.sonatype.org/content/groups/public/org/mobicents/servlet/sip/examples/sip-servlets-examples-parent/3.0.0-SNAPSHOT/sip-servlets-examples-parent-3.0.0-SNAPSHOT.pom
Downloading: https://repository.jboss.org/nexus/content/groups/public//org/mobicents/servlet/sip/examples/sip-servlets-examples-parent/3.0.0-SNAPSHOT/sip-servlets-examples-parent-3.0.0-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error building POM (may not be this project's POM).

Project ID: null:diameter-openims:war:null

Reason: Cannot find parent: org.mobicents.servlet.sip.examples:sip-servlets-examples-parent for project: null:diameter-openims:war:null for project null:diameter-openims:war:null

[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.reactor.MavenExecutionException: Cannot find parent: org.mobicents.servlet.sip.examples:sip-servlets-examples-parent for project: null:diameter-openims:war:null for project null:diameter-openims:war:null
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:378)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:292)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:287)
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)
Caused by: org.apache.maven.project.ProjectBuildingException: Cannot find parent: org.mobicents.servlet.sip.examples:sip-servlets-examples-parent for project: null:diameter-openims:war:null for project null:diameter-openims:war:null
at org.apache.maven.project.DefaultMavenProjectBuilder.assembleLineage(DefaultMavenProjectBuilder.java:1370)
at org.apache.maven.project.DefaultMavenProjectBuilder.buildInternal(DefaultMavenProjectBuilder.java:821)
at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFileInternal(DefaultMavenProjectBuilder.java:506)
at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:198)
at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:583)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:461)
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:365)
... 11 more
Caused by: org.apache.maven.project.ProjectBuildingException: POM 'org.mobicents.servlet.sip.examples:sip-servlets-examples-parent' not found in repository: Unable to download the artifact from any repository

org.mobicents.servlet.sip.examples:sip-servlets-examples-parent:pom:3.0.0-SNAPSHOT

from the specified remote repositories:
mobicents-public-repository-group (https://oss.sonatype.org/content/groups/public),
jboss-public-repository-group (https://repository.jboss.org/nexus/content/groups/public/),
maven2-repository.dev.java.net (http://download.java.net/maven/2/),
central (http://repo1.maven.org/maven2)
for project org.mobicents.servlet.sip.examples:sip-servlets-examples-parent
at org.apache.maven.project.DefaultMavenProjectBuilder.findModelFromRepository(DefaultMavenProjectBuilder.java:603)
at org.apache.maven.project.DefaultMavenProjectBuilder.assembleLineage(DefaultMavenProjectBuilder.java:1366)
... 17 more
Caused by: org.apache.maven.artifact.resolver.ArtifactNotFoundException: Unable to download the artifact from any repository

org.mobicents.servlet.sip.examples:sip-servlets-examples-parent:pom:3.0.0-SNAPSHOT

from the specified remote repositories:
mobicents-public-repository-group (https://oss.sonatype.org/content/groups/public),
jboss-public-repository-group (https://repository.jboss.org/nexus/content/groups/public/),
maven2-repository.dev.java.net (http://download.java.net/maven/2/),
central (http://repo1.maven.org/maven2)

at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:212)
at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:74)
at org.apache.maven.project.DefaultMavenProjectBuilder.findModelFromRepository(DefaultMavenProjectBuilder.java:556)
... 18 more

Caused by: org.apache.maven.wagon.ResourceDoesNotExistException: Unable to download the artifact from any repository
at org.apache.maven.artifact.manager.DefaultWagonManager.getArtifact(DefaultWagonManager.java:331)
at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:200)
... 20 more
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 32 seconds
[INFO] Finished at: Tue Apr 14 07:31:50 CEST 2015
[INFO] Final Memory: 2M/4M
[INFO] ------------------------------------------------------------------------