An error has occured : java.lang.ArrayIndexOutOfBoundsException: Index -5 out of bounds for length 640 August 2021 Tu We've been through worst Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 PlantUML (1.2026.3beta3) has crashed. Task 2 {Bob:50%} Diagram size: 13 lines / 363 characters. Bob on holiday {Bob} Bob Java Runtime: OpenJDK Runtime Environment JVM: OpenJDK 64-Bit Server VM Default Encoding: UTF-8 Language: en Country: US PLANTUML_LIMIT_SIZE: 4096 You should send this diagram and this image to plantuml@gmail.com or post to https://plantuml.com/qa to solve this issue. You can try to turn around this issue by simplifing your diagram. java.lang.ArrayIndexOutOfBoundsException: Index -5 out of bounds for length 640 net.sourceforge.plantuml.asciiart.BasicCharAreaImpl.drawChar(BasicCharAreaImpl.java:74) net.sourceforge.plantuml.asciiart.BasicCharAreaImpl.drawStringLR(BasicCharAreaImpl.java:126) net.sourceforge.plantuml.klimt.drawing.txt.UGraphicTxt.draw(UGraphicTxt.java:89) net.sourceforge.plantuml.klimt.drawing.AbstractUGraphicHorizontalLine.draw(AbstractUGraphicHorizontalLine.java:77) net.sourceforge.plantuml.klimt.creole.legacy.AtomText.drawU(AtomText.java:161) net.sourceforge.plantuml.klimt.creole.SheetBlock1.drawU(SheetBlock1.java:213) net.sourceforge.plantuml.klimt.creole.SheetBlock2.drawU(SheetBlock2.java:102) net.sourceforge.plantuml.project.draw.ResourceDrawNumbers.drawU(ResourceDrawNumbers.java:103) net.sourceforge.plantuml.project.GanttDiagramMainBlock.drawResources(GanttDiagramMainBlock.java:193) net.sourceforge.plantuml.project.GanttDiagramMainBlock.drawU(GanttDiagramMainBlock.java:124) net.sourceforge.plantuml.klimt.shape.TextBlockUtils$2.drawU(TextBlockUtils.java:161) net.sourceforge.plantuml.core.TextBlockExporter12026.exportTo(TextBlockExporter12026.java:171) net.sourceforge.plantuml.UgDiagram.exportDiagram(UgDiagram.java:91) net.sourceforge.plantuml.servlet.DiagramResponse.sendDiagram(DiagramResponse.java:159) net.sourceforge.plantuml.servlet.UmlDiagramService.doGet(UmlDiagramService.java:106) javax.servlet.http.HttpServlet.service(HttpServlet.java:529) javax.servlet.http.HttpServlet.service(HttpServlet.java:623) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:197) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:166) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:142) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:166) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:88) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:83) org.apache.catalina.valves.StuckThreadDetectionValve.invoke(StuckThreadDetectionValve.java:185) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:72) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344) org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:398) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:935) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1831) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:973) org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:491) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) java.base/java.lang.Thread.run(Thread.java:829) Diagram source: (Use http://zxing.org/w/decode.jspx to decode the qrcode)