org.apache.poi.POIXMLException: java.lang.reflect.InvocationTargetException at org.apache.poi.xssf.usermodel.XSSFFactory.createDocumentPart(XSSFFactory.java:62) at org.apache.poi.POIXMLDocumentPart.read(POIXMLDocumentPart.java:465) at org.apache.poi.POIXMLDocument.load(POIXMLDocument.java:173) at org.apache.poi.xssf.usermodel.XSSFWorkbook.<init>(XSSFWorkbook.java:278) at poi.excel.oom.POIExcelOOMNGTest.shouldNotThrowOOMWhileReadingExcel(POIExcelOOMNGTest.java:12) at org.apache.poi.xssf.usermodel.XSSFFactory.createDocumentPart(XSSFFactory.java:60) ... 37 more Caused by: java.lang.OutOfMemoryError: Java heap space at org.apache.xmlbeans.impl.store.CharUtil.allocate(CharUtil.java:397) at org.apache.xmlbeans.impl.store.CharUtil.saveChars(CharUtil.java:506) at org.apache.xmlbeans.impl.store.CharUtil.saveChars(CharUtil.java:419) at org.apache.xmlbeans.impl.store.CharUtil.saveChars(CharUtil.java:489) at org.apache.xmlbeans.impl.store.Cur$CurLoadContext.text(Cur.java:2927) at org.apache.xmlbeans.impl.store.Cur$CurLoadContext.stripText(Cur.java:3130) at org.apache.xmlbeans.impl.store.Cur$CurLoadContext.text(Cur.java:3143) at org.apache.xmlbeans.impl.store.Locale$SaxHandler.characters(Locale.java:3291) at org.apache.xmlbeans.impl.piccolo.xml.Piccolo.reportCdata(Piccolo.java:992) at org.apache.xmlbeans.impl.piccolo.xml.PiccoloLexer.parseXMLNS(PiccoloLexer.java:1290) at org.apache.xmlbeans.impl.piccolo.xml.PiccoloLexer.parseXML(PiccoloLexer.java:1261) at org.apache.xmlbeans.impl.piccolo.xml.PiccoloLexer.yylex(PiccoloLexer.java:4812) at org.apache.xmlbeans.impl.piccolo.xml.Piccolo.yylex(Piccolo.java:1290) at org.apache.xmlbeans.impl.piccolo.xml.Piccolo.yyparse(Piccolo.java:1400) at org.apache.xmlbeans.impl.piccolo.xml.Piccolo.parse(Piccolo.java:714) at org.apache.xmlbeans.impl.store.Locale$SaxLoader.load(Locale.java:3479) at org.apache.xmlbeans.impl.store.Locale.parseToXmlObject(Locale.java:1277) at org.apache.xmlbeans.impl.store.Locale.parseToXmlObject(Locale.java:1264) at org.apache.xmlbeans.impl.schema.SchemaTypeLoaderBase.parse(SchemaTypeLoaderBase.java:345) at org.openxmlformats.schemas.spreadsheetml.x2006.main.SstDocument$Factory.parse(Unknown Source) at org.apache.poi.xssf.model.SharedStringsTable.readFrom(SharedStringsTable.java:119) at org.apache.poi.xssf.model.SharedStringsTable.<init>(SharedStringsTable.java:106) at org.apache.poi.xssf.usermodel.XSSFFactory.createDocumentPart(XSSFFactory.java:60) at org.apache.poi.POIXMLDocumentPart.read(POIXMLDocumentPart.java:465) at org.apache.poi.POIXMLDocument.load(POIXMLDocument.java:173) at org.apache.poi.xssf.usermodel.XSSFWorkbook.<init>(XSSFWorkbook.java:278) at poi.excel.oom.POIExcelOOMNGTest.shouldNotThrowOOMWhileReadingExcel(POIExcelOOMNGTest.java:12) ... Removed 43 stack frames