Hi, I have been getting below exception in Prod environment which we could not replicate on our own environment and it has already occurred twiced this week. It seems like due to the nullpointer exception, the report can no longer generate. Other reports are able to generate. This report has quite a few SQL queries plus custom barcode fonts. I suspect it is due to the barcode font that causes this exception. This has not happened in the past. Please advice how should I resolve the issue. Jasperserver Logs 2018-02-22 07:15:16,325 ERROR AsyncJasperPrintAccessor,pool-4-thread-2081:315 - Error during report executionjava.lang.NullPointerException at net.sf.jasperreports.engine.fonts.FontUtil.getFontInfo(FontUtil.java:189) at net.sf.jasperreports.engine.fonts.FontUtil.getAwtFontFromBundles(FontUtil.java:257) at net.sf.jasperreports.engine.fill.SimpleTextLineWrapper.loadFont(SimpleTextLineWrapper.java:364) at net.sf.jasperreports.engine.fill.SimpleTextLineWrapper.getGeneralFontInfo(SimpleTextLineWrapper.java:338) at net.sf.jasperreports.engine.fill.SimpleTextLineWrapper.createFontInfo(SimpleTextLineWrapper.java:278) at net.sf.jasperreports.engine.fill.SimpleTextLineWrapper.start(SimpleTextLineWrapper.java:240) at net.sf.jasperreports.engine.fill.TextMeasurer.measure(TextMeasurer.java:536) at net.sf.jasperreports.engine.util.JdkGlyphFixTextMeasurer.measure(JdkGlyphFixTextMeasurer.java:141) at net.sf.jasperreports.engine.fill.JRFillTextElement.chopTextElement(JRFillTextElement.java:672) at net.sf.jasperreports.engine.fill.JRFillTextField.prepare(JRFillTextField.java:821) at net.sf.jasperreports.engine.fill.JRFillElementContainer.prepareElements(JRFillElementContainer.java:352) at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:421) at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:396) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:2028) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillGroupHeader(JRVerticalFiller.java:613) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillGroupHeaders(JRVerticalFiller.java:535) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:257) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:119) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:558) at net.sf.jasperreports.engine.fill.BaseFillHandle$ReportFill.run(BaseFillHandle.java:119) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$SynchronousExecutor.execute(EngineServiceImpl.java:922) at net.sf.jasperreports.engine.fill.BaseFillHandle.startFill(BaseFillHandle.java:164) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$AsynchronousReportFiller.fillReport(EngineServiceImpl.java:878) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl.fillReport(EngineServiceImpl.java:1774) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$ReportFill.runWithDataSource(EngineServiceImpl.java:1118) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$ReportFill.runReport(EngineServiceImpl.java:1047) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl$ReportRunnable.run(EngineServiceImpl.java:944) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)2018-02-22 07:19:22,262 ERROR AsyncJasperPrintAccessor,pool-4-thread-2083:315 - Error during report executionjava.lang.NullPointerException2018-02-22 07:22:06,376 ERROR AsyncJasperPrintAccessor,pool-4-thread-2084:315 - Error during report executionjava.lang.NullPointerException2018-02-22 07:36:25,973 ERROR AsyncJasperPrintAccessor,pool-4-thread-2086:315 - Error during report executionjava.lang.NullPointerException2018-02-22 08:32:16,151 ERROR AsyncJasperPrintAccessor,pool-4-thread-2104:315 - Error during report executionjava.lang.NullPointerException2018-02-22 08:32:39,068 ERROR AsyncJasperPrintAccessor,pool-4-thread-2104:315 - Error during report executionjava.lang.NullPointerException[/code]Thanks Ren Fa