java.lang.OutOfMemoryError: Java heap space
   at org.openide.filesystems.FileUtil.copy(FileUtil.java:543)
   at org.netbeans.modules.localhistory.utils.FileUtils.copy(FileUtils.java:145)
   at org.netbeans.modules.localhistory.store.LocalHistoryStoreImpl.storeChangedSync(LocalHistoryStoreImpl.java:212)
   at org.netbeans.modules.localhistory.store.LocalHistoryStoreImpl.access$400(LocalHistoryStoreImpl.java:82)
   at org.netbeans.modules.localhistory.store.LocalHistoryStoreImpl$3.run(LocalHistoryStoreImpl.java:188)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)