HTML/Java job on deadlock is broken

Hi gang,
I've just noticed that the HTML/Java job on deadlock.netbeans.org hasn't 
succeeded in last five weeks:

http://deadlock.netbeans.org/job/html+java/

the last successful build is from Sep 21, 2015:

http://deadlock.netbeans.org/job/html+java/158/

The failure is always the same:

Access denied to: http://repo1.maven.org/maven2/org/apache/felix/maven-bundle-plugin/2.4.0/maven-bundle-plugin-2.4.0.jar

see details below. I don't know what is causing the problem. Locally the build 
succeeds and the JAR in question can be downloaded without problems...

Could upgrading to new version of Maven help?
-jt


---- failure from the job ----

Caused by: org.sonatype.aether.resolution.ArtifactResolutionException: The 
following artifacts could not be resolved: org.apache.felix:maven-bundle-
plugin:jar:2.4.0, biz.aQute.bnd:bndlib:jar:2.1.0, 
org.osgi:org.osgi.core:jar:4.2.0, 
org.apache.felix:org.apache.felix.bundlerepository:jar:1.6.6, 
org.easymock:easymock:jar:2.4, org.apache.maven.reporting:maven-reporting-
api:jar:2.0.7, org.apache.maven.doxia:doxia-sink-api:jar:1.0-alpha-7, 
junit:junit:jar:3.8.1, commons-cli:commons-cli:jar:1.0, 
org.codehaus.plexus:plexus-interactivity-api:jar:1.0-alpha-4, 
org.apache.maven:maven-archiver:jar:2.5, org.codehaus.plexus:plexus-
archiver:jar:2.1, org.codehaus.plexus:plexus-io:jar:2.0.2, 
org.codehaus.plexus:plexus-interpolation:jar:1.15, 
org.apache.maven.shared:maven-dependency-tree:jar:2.1, 
org.codehaus.plexus:plexus-component-annotations:jar:1.5.5, 
org.eclipse.aether:aether-util:jar:0.9.0.M2, org.codehaus.plexus:plexus-
utils:jar:3.0.10: Could not transfer artifact org.apache.felix:maven-bundle-
plugin:jar:2.4.0 from/to central (http://repo1.maven.org/maven2): Access 
denied to: http://repo1.maven.org/maven2/org/apache/felix/maven-bundle-plugin/2.4.0/maven-bundle-plugin-2.4.0.jar
	at 
org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:541)
	at 
org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:220)
	at 
org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:395)
	at 
org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve(DefaultPluginDependenciesResolver.java:207)
	... 25 more
Caused by: org.sonatype.aether.transfer.ArtifactTransferException: Could not 
transfer artifact org.apache.felix:maven-bundle-plugin:jar:2.4.0 from/to 
central (http://repo1.maven.org/maven2): Access denied to: 
http://repo1.maven.org/maven2/org/apache/felix/maven-bundle-plugin/2.4.0/maven-bundle-plugin-2.4.0.jar
	at 
org.sonatype.aether.connector.wagon.WagonRepositoryConnector$4.wrap(WagonRepositoryConnector.java:949)
	at 
org.sonatype.aether.connector.wagon.WagonRepositoryConnector$4.wrap(WagonRepositoryConnector.java:940)
	at 
org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.flush(WagonRepositoryConnector.java:695)
	at 
org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.flush(WagonRepositoryConnector.java:689)
	at 
org.sonatype.aether.connector.wagon.WagonRepositoryConnector.get(WagonRepositoryConnector.java:445)
	at 
org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:460)
	... 28 more
Caused by: org.apache.maven.wagon.authorization.AuthorizationException: Access 
denied to: http://repo1.maven.org/maven2/org/apache/felix/maven-bundle-plugin/2.4.0/maven-bundle-plugin-2.4.0.jar
	at 
org.apache.maven.wagon.providers.http.LightweightHttpWagon.fillInputData(LightweightHttpWagon.java:119)
	at org.apache.maven.wagon.StreamWagon.getInputStream(StreamWagon.java:116)
	at org.apache.maven.wagon.StreamWagon.getIfNewer(StreamWagon.java:88)
	at org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:61)
	at 
org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.run(WagonRepositoryConnector.java:608)
	at 
org.sonatype.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:64)
	at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:724)