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java.lang.OutOfMemoryError: Java heap space at java.util.ArrayList.iterator(ArrayList.java:834) at java.util.Collections$SynchronizedCollection.iterator(Collections.java:2031) at com.persistit.Persistit.pollAlertMonitors(Persistit.java:2285) at com.persistit.Persistit$LogFlusher.run(Persistit.java:192)