I have this on several Projects since last night. The .100-Build has the same
problems:

java.io.IOException: Broken pipe
at java.io.FileOutputStream.writeBytes(Native Method)
at java.io.FileOutputStream.write(FileOutputStream.java:260)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at
java.io.ObjectOutputStream$BlockDataOutputStream.flush(ObjectOutputStream.java:1631)
at java.io.ObjectOutputStream.flush(ObjectOutputStream.java:666)
at java.io.ObjectOutputStream.close(ObjectOutputStream.java:687)
at hudson.remoting.Channel.close(Channel.java:355)
at hudson.maven.ProcessCache$MavenProcess.discard(ProcessCache.java:91)
at hudson.maven.ProcessCache$MavenProcess.recycle(ProcessCache.java:78)
at hudson.maven.MavenBuild$RunnerImpl.doRun(MavenBuild.java:268)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:119)
at hudson.model.Run.run(Run.java:544)
at hudson.maven.MavenBuild.run(MavenBuild.java:125)
at hudson.model.Executor.run(Executor.java:61)