Error in logs when releasing projects using "Provide Release Parameters"

2010-02-05 19:17:50,127 [Thread-19] ERROR taskQueueExecutor#perform-release  - Error executing task
edu.emory.mathcs.backport.java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at edu.emory.mathcs.backport.java.util.concurrent.FutureTask.getResult(FutureTask.java:299)
	at edu.emory.mathcs.backport.java.util.concurrent.FutureTask.get(FutureTask.java:118)
	at org.codehaus.plexus.taskqueue.execution.ThreadedTaskQueueExecutor$ExecutorRunnable.waitForTask(ThreadedTaskQueueExecutor.java:159)
	at org.codehaus.plexus.taskqueue.execution.ThreadedTaskQueueExecutor$ExecutorRunnable.run(ThreadedTaskQueueExecutor.java:127)
Caused by: java.lang.NullPointerException
	at java.io.File.<init>(File.java:222)
	at org.apache.continuum.release.phase.AbstractContinuumRunGoalsPhase.execute(AbstractContinuumRunGoalsPhase.java:104)
	at org.apache.maven.shared.release.DefaultReleaseManager.perform(DefaultReleaseManager.java:336)
	at org.apache.maven.shared.release.DefaultReleaseManager.performWithResult(DefaultReleaseManager.java:294)
	at org.apache.maven.shared.release.DefaultReleaseManager.performWithResult(DefaultReleaseManager.java:579)
	at org.apache.maven.continuum.release.executors.PerformReleaseTaskExecutor.execute(PerformReleaseTaskExecutor.java:88)
	at org.apache.maven.continuum.release.executors.AbstractReleaseTaskExecutor.executeTask(AbstractReleaseTaskExecutor.java:68)
	at org.codehaus.plexus.taskqueue.execution.ThreadedTaskQueueExecutor$ExecutorRunnable$1.run(ThreadedTaskQueueExecutor.java:116)
	at edu.emory.mathcs.backport.java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:442)
	at edu.emory.mathcs.backport.java.util.concurrent.FutureTask.run(FutureTask.java:176)
	at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:987)
	at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:528)
	at java.lang.Thread.run(Thread.java:619)