The AggregatorApplication doesn't remove the temporary Aggregator during shutdown

Host: KB-TEST-WAY-001.KB.DK
Date: Fri Feb 04 14:44:58 CET 2011
dk.netarkivet.common.utils.ApplicationUtils.logExceptionAndPrint(ApplicationUtils.java:88)
Could not start class dk.netarkivet.wayback.aggregator.AggregationWorker
java.lang.reflect.InvocationTargetException
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at dk.netarkivet.common.utils.ApplicationUtils.startApp(ApplicationUtils.java:170)
 at dk.netarkivet.wayback.aggregator.AggregatorApplication.main(AggregatorApplication.java:39)
Caused by: java.lang.IllegalStateException: An temporary Aggregator dir (/home/test/COLLECTIONQA/aggregator_tempdir) already exists. This indicates that an instance of the aggregator is already running. Please ensure this is not the case remove the temp directory and restart the Aggregator
 at dk.netarkivet.wayback.aggregator.AggregationWorker.initialize(AggregationWorker.java:319)
 at dk.netarkivet.wayback.aggregator.AggregationWorker.<init>(AggregationWorker.java:122)
 at dk.netarkivet.wayback.aggregator.AggregationWorker.getInstance(AggregationWorker.java:112)
 ... 6 more