Some of us found this (a little too) amusing:
[pool-http-jetty-exec-thread-3] 20100122140052,WARN,com.kaching.trading.core.BalanceCalculation$1,
missing price for stock AAGH on portfolio [elided]
com.kaching.trading.core.StockMissingException: AAGH @ 01/22/2010
at com.kaching.trading.core.PositionMetrics.getPositionValues(PositionMetrics.java:265)
at com.kaching.trading.core.PositionMetrics.getLongPositionValues(PositionMetrics.java:251)
at com.kaching.trading.core.PositionMetrics.getAggregateLongValue(PositionMetrics.java:274)
at com.kaching.trading.core.PositionMetrics.getTotalValue(PositionMetrics.java:286)