NPE in "Background source download job".

[thallgren]

Whenever I start debugging, I get a dialog informing me that a background job for downloading source fails. The error log reveals the following stack-trace:

java.lang.NullPointerException
at org.apache.maven.index.DefaultSearchEngine.searchIteratorPaged(DefaultSearchEngine.java:313)
at org.apache.maven.index.DefaultSearchEngine.searchIteratorPaged(DefaultSearchEngine.java:282)
at org.apache.maven.index.DefaultNexusIndexer.identify(DefaultNexusIndexer.java:580)
at org.eclipse.m2e.core.internal.index.nexus.NexusIndexManager.identify(NexusIndexManager.java:1274)
at org.eclipse.m2e.core.internal.index.nexus.NexusIndexManager.identify(NexusIndexManager.java:300)
at org.eclipse.m2e.core.internal.index.nexus.NexusIndex.identify(NexusIndex.java:141)
at org.eclipse.m2e.core.internal.index.nexus.CompositeIndex.identifyAll(CompositeIndex.java:67)
at com.ifedorenko.m2e.sourcelookup.internal.PomPropertiesScanner.identify(PomPropertiesScanner.java:148)
at com.ifedorenko.m2e.sourcelookup.internal.PomPropertiesScanner.scan(PomPropertiesScanner.java:125)
at com.ifedorenko.m2e.sourcelookup.internal.SourceLookupParticipant.discoverSourceContainer(SourceLookupParticipant.java:258)
at com.ifedorenko.m2e.sourcelookup.internal.SourceLookupParticipant$CreateContainerRunnable.run(SourceLookupParticipant.java:75)
at com.ifedorenko.m2e.sourcelookup.internal.BackgroundProcessingJob.run(BackgroundProcessingJob.java:49)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)

My IDE is running 4.3M5a and the dynamic source code lookup feature is version 1.1.0.201302162303.