Build failed in Jenkins: karaf-2.3.x » Apache Karaf #1685

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See <https://builds.apache.org/job/karaf-2.3.x/org.apache.karaf$karaf/1685/>

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maven3-agent.jar already up to date
maven3-interceptor.jar already up to date
maven3-interceptor-commons.jar already up to date
<===[JENKINS REMOTING CAPACITY]===>   channel started
Executing Maven:  -B -f <https://builds.apache.org/job/karaf-2.3.x/org.apache.karaf$karaf/ws/pom.xml> -Dmaven.repo.local=<https://builds.apache.org/job/karaf-2.3.x/org.apache.karaf$karaf/ws/.repository> -B -e clean deploy
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO] 
[INFO] Apache Karaf
[INFO] Apache Karaf :: Util
[INFO] Apache Karaf :: Main
[INFO] Apache Karaf :: JAAS
[INFO] Apache Karaf :: JAAS :: Boot
[INFO] Apache Karaf :: JAAS :: Config
[INFO] Apache Karaf :: JAAS :: Modules
[INFO] Apache Karaf :: Shell
[INFO] Apache Karaf :: Shell :: Console
[INFO] Apache Karaf :: Shell :: OBR Commands
[INFO] Apache Karaf :: Features
[INFO] Apache Karaf :: Features :: Core
[INFO] Apache Karaf :: Features :: Command
[INFO] Apache Karaf :: Management
[INFO] Apache Karaf :: Management
[INFO] Apache Karaf :: Features :: Management
[INFO] Apache Karaf :: Features :: OBR Resolver
[INFO] Apache Karaf :: Admin
[INFO] Apache Karaf :: Admin :: Core
[INFO] Apache Karaf :: Admin :: Command
[INFO] Apache Karaf :: Admin :: Management
[INFO] Apache Karaf :: Deployer
[INFO] Apache Karaf :: Deployer :: Spring
[INFO] Apache Karaf :: Deployer :: Blueprint
[INFO] Apache Karaf :: Deployer :: Features
[INFO] Apache Karaf :: Deployer :: Karaf Archive (.kar)
[INFO] Apache Karaf :: Deployer :: Wrap Non OSGi Jar
[INFO] Apache Karaf :: Shell :: Various Commands
[INFO] Apache Karaf :: Shell :: ConfigAdmin Commands
[INFO] Apache Karaf :: Shell :: Log Commands
[INFO] Apache Karaf :: Shell :: OSGi Commands
[INFO] Apache Karaf :: Shell :: PackageAdmin Commands
[INFO] Apache Karaf :: Shell :: SSH
[INFO] Apache Karaf :: Shell :: Service Wrapper
[INFO] Apache Karaf :: Shell :: Development Commands
[INFO] Apache Karaf :: Shell :: SCR Commands
[INFO] Apache Karaf :: Shell :: Web Commands
[INFO] Apache Karaf :: JAAS :: Jasypt Encryption
[INFO] Apache Karaf :: JAAS :: Command
[INFO] Apache Karaf :: Client
[INFO] Apache Karaf :: Management :: MBeans
[INFO] Apache Karaf :: Management :: MBeans :: Bundles
[INFO] Apache Karaf :: Management :: MBeans :: Services
[INFO] Apache Karaf :: Management :: MBeans :: System
[INFO] Apache Karaf :: Management :: MBeans :: Packages
[INFO] Apache Karaf :: Management :: MBeans :: Config
[INFO] Apache Karaf :: Management :: MBeans :: Dev
[INFO] Apache Karaf :: Management :: MBeans :: Log
[INFO] Apache Karaf :: Management :: MBeans :: OBR
[INFO] Apache Karaf :: Management :: MBeans :: SCR
[INFO] Apache Karaf :: Management :: MBeans :: Web
[INFO] Apache Karaf :: JNDI
[INFO] Apache Karaf :: JNDI :: Core
[INFO] Apache Karaf :: JNDI :: Command
[INFO] Apache Karaf :: JDBC
[INFO] Apache Karaf :: JDBC :: Core
[INFO] Apache Karaf :: JDBC :: Command
[INFO] Apache Karaf :: JMS
[INFO] Apache Karaf :: JMS :: Core
[INFO] Apache Karaf :: JMS :: Command
[INFO] Apache Karaf :: Web Console
[INFO] Apache Karaf :: Web Console :: Console
[INFO] Apache Karaf :: Web Console :: Branding
[INFO] Apache Karaf :: Web Console :: Features Plugin
[INFO] Apache Karaf :: Web Console :: Gogo Plugin
[INFO] Apache Karaf :: Web Console :: Admin Plugin
[INFO] Apache Karaf :: Exception
[INFO] Apache Karaf :: Assemblies
[INFO] Apache Karaf :: Assemblies :: Features
[INFO] Apache Karaf :: Assemblies :: Features :: Standard
[INFO] Apache Karaf :: Assemblies :: Features :: Enterprise
[INFO] Apache Karaf :: Diagnostic
[INFO] Apache Karaf :: Diagnostic :: Core
[INFO] Apache Karaf :: Diagnostic :: Common
[INFO] Apache Karaf :: Diagnostic :: Command
[INFO] Apache Karaf :: Diagnostic :: Management
[INFO] Apache Karaf :: Tooling
[INFO] Apache Karaf :: Tooling :: Maven2 Features plugin
[INFO] Apache Karaf :: Assembly
[INFO] Apache Karaf :: Demos
[INFO] Apache Karaf :: Demos :: Web
[INFO] Apache Karaf :: Demos :: Branding
[INFO] Apache Karaf :: Demos :: Branding :: Shell
[INFO] Apache Karaf :: Demos :: Demo Dump provider
[INFO] Apache Karaf :: Demos :: Extend Console Command
[INFO] Apache Karaf :: Demos :: Deployer
[INFO] Apache Karaf :: Demos :: Deployer :: Kar
[INFO] Apache Karaf :: Demos :: Deployer :: Wrap Bundle osgi.commons-lang
[INFO] Apache Karaf :: Demos :: Deployer :: Bundle
[INFO] Apache Karaf :: Demos :: Deployer :: Feature
[INFO] Apache Karaf :: Tooling :: Maven2 Command Help plugin
[INFO] Apache Karaf :: Tooling :: Exam Testing Framework
[INFO] Apache Karaf :: Tooling :: Exam Testing Framework :: Options
[INFO] Apache Karaf :: Tooling :: Exam Testing Framework :: Container
[INFO] Apache Karaf :: Archetypes
[INFO] Apache Karaf :: Archetypes :: Assembly Archetype
[INFO] Apache Karaf :: Archetypes :: Blueprint Archetype
[INFO] Apache Karaf :: Archetypes :: Bundle Archetype
[INFO] Apache Karaf :: Archetypes :: Command Archetype
[INFO] Apache Karaf :: Archetypes :: Feature Archetype
[INFO] Apache Karaf :: Archetypes :: Kar Archetype
[INFO] Apache Karaf :: Integration Tests
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Apache Karaf 2.3.12-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ karaf ---
[INFO] Deleting <https://builds.apache.org/job/karaf-2.3.x/org.apache.karaf$karaf/ws/target>
[INFO] 
[INFO] --- maven-bundle-plugin:2.4.0:cleanVersions (cleanVersions) @ karaf ---
[INFO] 
[INFO] --- maven-remote-resources-plugin:1.5:process (default) @ karaf ---
[INFO] 
[INFO] --- maven-antrun-plugin:1.7:run (copy-notice) @ karaf ---
[INFO] Executing tasks

main:
     [copy] Copying 1 file to <https://builds.apache.org/job/karaf-2.3.x/org.apache.karaf$karaf/ws/target/maven-shared-archive-resources/META-INF>
[INFO] Executed tasks
[INFO] 
[INFO] --- maven-site-plugin:3.4:attach-descriptor (attach-descriptor) @ karaf ---
[INFO] 
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ karaf ---
[INFO] Installing <https://builds.apache.org/job/karaf-2.3.x/org.apache.karaf$karaf/ws/pom.xml> to <https://builds.apache.org/job/karaf-2.3.x/org.apache.karaf$karaf/ws/.repository/org/apache/karaf/karaf/2.3.12-SNAPSHOT/karaf-2.3.12-SNAPSHOT.pom>
[INFO] 
[INFO] --- maven-deploy-plugin:2.8.1:deploy (default-deploy) @ karaf ---
Downloading: https://repository.apache.org/content/repositories/snapshots/org/apache/karaf/karaf/2.3.12-SNAPSHOT/maven-metadata.xml
[WARNING] Could not transfer metadata org.apache.karaf:karaf:2.3.12-SNAPSHOT/maven-metadata.xml from/to apache.snapshots.https (https://repository.apache.org/content/repositories/snapshots): java.lang.RuntimeException: Could not generate DH keypair