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java.lang.OutOfMemoryError: Java heap space at org.apache.poi.poifs.storage.BATBlock.<init>(BATBlock.java:57) at org.apache.poi.poifs.storage.BATBlock.<init>(BATBlock.java:210) at org.apache.poi.poifs.storage.BATBlock.createBATBlocks(BATBlock.java:87) at org.apache.poi.poifs.storage.BlockAllocationTableWriter.simpleCreateBlocks(BlockAllocationTableWriter.java:150) at org.apache.poi.poifs.storage.BlockAllocationTableWriter.createBlocks(BlockAllocationTableWriter.java:103) at org.apache.poi.poifs.filesystem.POIFSFileSystem.writeFilesystem(POIFSFileSystem.java:221) at org.apache.poi.hssf.usermodel.HSSFWorkbook.write(HSSFWorkbook.java:744) at net.ndmystko.qa.QAJobReporter.writeWorkbook(QAJobReporter.java:478) at net.ndmystko.qa.QAJobReporter.writeResults(QAJobReporter.java:458) at net.ndmystko.qa.QAJobReporter.writeResults(QAJobReporter.java:402) at net.ndmystko.qa.QA.displayEvolutionProgress(QA.java:1257) at net.ndmystko.qa.QA.access$9(QA.java:1186) at net.ndmystko.qa.QA$4.actionPerformed(QA.java:1176) at net.ndmystko.analysis.evolution.Evolution.run(Evolution.java:191)