I have built my own tar.gz from openflowpligin project
I was unable to install feature:install odl-openflowplugin-flow-services-ui-li
because there is external dependency.

Caused by: shaded.org.eclipse.aether.transfer.ArtifactTransferException: Could not transfer artifact javax.mail:mail:jar:1.4.4 from/to central (http://repo1.maven.org/maven2/): GET request of: javax/mail/mail/1.4.4/mail-1.4.4.jar from central failed
at shaded.org.eclipse.aether.connector.basic.ArtifactTransportListener.transferFailed(ArtifactTransportListener.java:43)
at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:355)
at shaded.org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:67)
at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute(BasicRepositoryConnector.java:581)
at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector.get(BasicRepositoryConnector.java:249)
at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:520)
at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:421)
... 76 more
Caused by: shaded.org.apache.maven.wagon.TransferFailedException: GET request of: javax/mail/mail/1.4.4/mail-1.4.4.jar from central failed
at shaded.org.apache.maven.wagon.AbstractWagon.getTransfer(AbstractWagon.java:363)
at shaded.org.apache.maven.wagon.AbstractWagon.getTransfer(AbstractWagon.java:316)
at shaded.org.apache.maven.wagon.AbstractWagon.getTransfer(AbstractWagon.java:285)
at shaded.org.apache.maven.wagon.StreamWagon.getIfNewer(StreamWagon.java:97)
at shaded.org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:61)
at shaded.org.eclipse.aether.transport.wagon.WagonTransporter$GetTaskRunner.run(WagonTransporter.java:560)
at shaded.org.eclipse.aether.transport.wagon.WagonTransporter.execute(WagonTransporter.java:427)
at shaded.org.eclipse.aether.transport.wagon.WagonTransporter.get(WagonTransporter.java:404)
at
shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask(BasicRepositoryConnector.java:447)
at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:350)
... 81 more
Caused by: java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)[:1.8.0_51]
at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)[:1.8.0_51]
at java.net.SocketInputStream.read(SocketInputStream.java:170)[:1.8.0_51]
at java.net.SocketInputStream.read(SocketInputStream.java:141)[:1.8.0_51]
at shaded.org.apache.http.impl.io.SessionInputBufferImpl.streamRead(SessionInputBufferImpl.java:136)
at shaded.org.apache.http.impl.io.SessionInputBufferImpl.read(SessionInputBufferImpl.java:195)
at shaded.org.apache.http.impl.io.ContentLengthInputStream.read(ContentLengthInputStream.java:178)
at shaded.org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:137)
at shaded.org.apache.maven.wagon.AbstractWagon.transfer(AbstractWagon.java:531)
at shaded.org.apache.maven.wagon.AbstractWagon.getTransfer(AbstractWagon.java:353)
... 90 more