We are running into stackoverflow error when we try to generate reports. The error is occuring in the jasperreports-javaflow-6.4.1.jar which is running into infinite loop for some reason and errors out finally. Did some research and found that we can use the standard jasper jar instead of jasperreports-javaflow-6.4.1.jar. Since we are currently using jasperreports-javaflow-6.4.1.jar from long time we are worried about switching the jar to standard jar as it may cause regression issues. Is there a fix which went into the next version of the javaflow jar to fix this issue? How safe it would be to use the standard jar instead of javaflow jar? Please share your thoughts on this. Following is the trace Caused by: net.sf.jasperreports.engine.JRRuntimeException: java.lang.StackOverflowError at net.sf.jasperreports.engine.fill.JRFillSubreport.prepare(JRFillSubreport.java:874) ~[jasperreports-javaflow-6.4.1.jar:6.4.1] at net.sf.jasperreports.engine.fill.JRFillElementContainer.prepareElements(JRFillElementContainer.java:537) ~[jasperreports-javaflow-6.4.1.jar:6.4.1] at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:411) ~[jasperreports-javaflow-6.4.1.jar:6.4.1] at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:386) ~[jasperreports-javaflow-6.4.1.jar:6.4.1] at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillSummaryNoLastFooterSamePage(JRVerticalFiller.java:1066) ~[jasperreports-javaflow-6.4.1.jar:6.4.1] at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillSummary(JRVerticalFiller.java:1025) ~[jasperreports-javaflow-6.4.1.jar:6.4.1] at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportEnd(JRVerticalFiller.java:286) ~[jasperreports-javaflow-6.4.1.jar:6.4.1] at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:122) ~[jasperreports-javaflow-6.4.1.jar:6.4.1] at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:582) ~[jasperreports-javaflow-6.4.1.jar:6.4.1] at net.sf.jasperreports.engine.fill.JRFiller.fill(JRFiller.java:163) ~[jasperreports-javaflow-6.4.1.jar:6.4.1] at net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:474) ~[jasperreports-javaflow-6.4.1.jar:6.4.1] at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:875) ~[jasperreports-javaflow-6.4.1.jar:6.4.1] at com.reporting.Report.runReport(Report.java:291) ~[reporting.jar:?] ... 208 moreCaused by: java.lang.StackOverflowError at java.util.AbstractMap.hashCode(Unknown Source) ~[?:1.8.0_121] at java.util.Objects.hashCode(Unknown Source) ~[?:1.8.0_121] at java.util.HashMap$Node.hashCode(Unknown Source) ~[?:1.8.0_121] at java.util.AbstractMap.hashCode(Unknown Source) ~[?:1.8.0_121] at java.util.Objects.hashCode(Unknown Source) ~[?:1.8.0_121] at java.util.HashMap$Node.hashCode(Unknown Source) ~[?:1.8.0_121] at java.util.AbstractMap.hashCode(Unknown Source) ~[?:1.8.0_121] at java.util.Objects.hashCode(Unknown Source) ~[?:1.8.0_121] at java.util.HashMap$Node.hashCode(Unknown Source) ~[?:1.8.0_121] at java.util.AbstractMap.hashCode(Unknown Source) ~[?:1.8.0_121] at java.util.Objects.hashCode(Unknown Source) ~[?:1.8.0_121] at java.util.HashMap$Node.hashCode(Unknown Source) ~[?:1.8.0_121] at java.util.AbstractMap.hashCode(Unknown Source) ~[?:1.8.0_121] at java.util.Objects.hashCode(Unknown Source) ~[?:1.8.0_121]
