2017-01-25 12:49:44.879 [ERROR] [apache.karaf.shell.support.ShellUtil] - Exception caught while executing command
org.apache.karaf.features.internal.util.MultiException: Error
        at org.apache.karaf.features.internal.download.impl.MavenDownloadManager$MavenDownloader.<init>(MavenDownloadManager.java:84)[8:org.apache.karaf.features.core:4.0.8]
        at org.apache.karaf.features.internal.download.impl.MavenDownloadManager.createDownloader(MavenDownloadManager.java:72)[8:org.apache.karaf.features.core:4.0.8]
        at org.apache.karaf.features.internal.region.Subsystem.downloadBundles(Subsystem.java:363)[8:org.apache.karaf.features.core:4.0.8]
        at org.apache.karaf.features.internal.region.Subsystem.downloadBundles(Subsystem.java:360)[8:org.apache.karaf.features.core:4.0.8]
        at org.apache.karaf.features.internal.region.SubsystemResolver.resolve(SubsystemResolver.java:187)[8:org.apache.karaf.features.core:4.0.8]
        at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:263)[8:org.apache.karaf.features.core:4.0.8]
        at org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1176)[8:org.apache.karaf.features.core:4.0.8]
        at org.apache.karaf.features.internal.service.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:1074)[8:org.apache.karaf.features.core:4.0.8]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_111]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_111]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_111]
        at java.lang.Thread.run(Thread.java:745)[:1.8.0_111]
Caused by: java.io.IOException: Error downloading mvn:org.openhab.core/org.openhab.ui.paperui/2.0.0
        at org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:77)[8:org.apache.karaf.features.core:4.0.8]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[:1.8.0_111]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_111]
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)[:1.8.0_111]
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)[:1.8.0_111]
        ... 3 more
Caused by: java.io.IOException: Error resolving artifact org.openhab.core:org.openhab.ui.paperui:jar:2.0.0: [Could not transfer artifact org.openhab.core:org.openhab.ui.paperui:jar:2.0.0 from/to openhab (https://dl.bintray.com/openhab/mvn/online-repo/2.0/): Connect to dl.bintray.com:443 [dl.bintray.com/5.153.35.248] failed: connect timed out]
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:720)[7:org.ops4j.pax.url.mvn:2.5.2]
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:659)[7:org.ops4j.pax.url.mvn:2.5.2]
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:600)[7:org.ops4j.pax.url.mvn:2.5.2]
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:567)[7:org.ops4j.pax.url.mvn:2.5.2]
        at org.apache.karaf.features.internal.download.impl.MavenDownloadTask.download(MavenDownloadTask.java:36)[8:org.apache.karaf.features.core:4.0.8]
        at org.apache.karaf.features.internal.download.impl.AbstractRetryableDownloadTask.run(AbstractRetryableDownloadTask.java:60)[8:org.apache.karaf.features.core:4.0.8]
        ... 7 more
Caused by: shaded.org.eclipse.aether.resolution.ArtifactResolutionException: Error resolving artifact org.openhab.core:org.openhab.ui.paperui:jar:2.0.0
        at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:444)
        at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:246)
        at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:223)
        at shaded.org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:294)
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:705)[7:org.ops4j.pax.url.mvn:2.5.2]
        ... 12 more