Spooling directory source should be able to replace or ignore malformed characters

When parsing a file with messed up encoding flume spits this error:

23 May 2013 22:06:29,446 ERROR [pool-12-thread-1] (org.apache.flume.source.SpoolDirectorySource$SpoolDirectoryRunnable.run:164) - Uncaught exception in Runnable
java.nio.charset.MalformedInputException: Input length = 1
at java.nio.charset.CoderResult.throwException(CoderResult.java:277)
at org.apache.flume.serialization.ResettableFileInputStream.readChar(ResettableFileInputStream.java:162)
at org.apache.flume.serialization.LineDeserializer.readLine(LineDeserializer.java:134)
at org.apache.flume.serialization.LineDeserializer.readEvent(LineDeserializer.java:72)
at org.apache.flume.serialization.LineDeserializer.readEvents(LineDeserializer.java:91)
at org.apache.flume.client.avro.ReliableSpoolingFileEventReader.readEvents(ReliableSpoolingFileEventReader.java:221)
at org.apache.flume.source.SpoolDirectorySource$SpoolDirectoryRunnable.run(SpoolDirectorySource.java:154)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
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:722)

It would be good to skip such characters, ignore them or delete. Corrupt signs come from spamming engines, flume cant handle them at all.