[JENKINS] Lucene-Solr-4.x-Linux (64bit/jdk1.8.0) - Build # 9744 - Still Failing!

[Policeman Jenkins Server <je...@thetaphi.de>]

Build: http://jenkins.thetaphi.de/job/Lucene-Solr-4.x-Linux/9744/
Java: 64bit/jdk1.8.0 -XX:+UseCompressedOops -XX:+UseParallelGC

All tests passed

Build Log:
[...truncated 43514 lines...]
BUILD FAILED
/mnt/ssd/jenkins/workspace/Lucene-Solr-4.x-Linux/build.xml:467: The following error occurred while executing this line:
/mnt/ssd/jenkins/workspace/Lucene-Solr-4.x-Linux/build.xml:63: The following error occurred while executing this line:
/mnt/ssd/jenkins/workspace/Lucene-Solr-4.x-Linux/lucene/build.xml:208: The following error occurred while executing this line:
/mnt/ssd/jenkins/workspace/Lucene-Solr-4.x-Linux/lucene/build.xml:543: The following error occurred while executing this line:
/mnt/ssd/jenkins/workspace/Lucene-Solr-4.x-Linux/lucene/common-build.xml:2342: java.net.UnknownHostException: issues.apache.org
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:649)
	at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:173)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
	at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:275)
	at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:371)
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1103)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:997)
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:153)
	at org.apache.tools.ant.taskdefs.Get$GetThread.openConnection(Get.java:660)
	at org.apache.tools.ant.taskdefs.Get$GetThread.get(Get.java:579)
	at org.apache.tools.ant.taskdefs.Get$GetThread.run(Get.java:569)

Total time: 70 minutes 9 seconds
Build step 'Invoke Ant' marked build as failure
Description set: Java: 64bit/jdk1.8.0 -XX:+UseCompressedOops -XX:+UseParallelGC
Archiving artifacts
Recording test results
Email was triggered for: Failure
Sending email for trigger: Failure