java.lang.NullPointerException: This exception has no message.

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via ZK-Tracker by JerryChen, 1 year ago
This exception has no message.
via ZK-Tracker by JerryChen, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at org.zkoss.poi.xssf.model.CommentsTable.findAuthor(CommentsTable.java:103)
at org.zkoss.poi.xssf.usermodel.XSSFComment.setAuthor(XSSFComment.java:65)
at org.zkoss.zss.range.impl.imexp.AbstractExcelExporter.exportCell(AbstractExcelExporter.java:471)
at org.zkoss.zss.range.impl.imexp.AbstractExcelExporter.exportRow(AbstractExcelExporter.java:367)
at org.zkoss.zss.range.impl.imexp.AbstractExcelExporter.exportRowColumn(AbstractExcelExporter.java:329)
at org.zkoss.zss.range.impl.imexp.AbstractExcelExporter.export(AbstractExcelExporter.java:131)
at org.zkoss.zss.api.impl.ExporterImpl.export(ExporterImpl.java:49)
at org.zkoss.zss.app.repository.impl.SimpleRepository.exportBook(SimpleRepository.java:136)
at org.zkoss.zss.app.repository.impl.SimpleRepository.save(SimpleRepository.java:91)
at org.zkoss.zss.app.repository.impl.SimpleRepository.saveAs(SimpleRepository.java:157)
at org.zkoss.zssex.app.impl.BookManagerEx.saveBook(BookManagerEx.java:83)
at org.zkoss.zss.app.ui.AppCtrl$17.onEvent(AppCtrl.java:627)
at org.zkoss.zss.app.ui.AppCtrl$17.onEvent(AppCtrl.java:615)
at org.zkoss.zss.app.ui.dlg.DlgCtrlBase$1.onEvent(DlgCtrlBase.java:57)
at org.zkoss.zk.ui.AbstractComponent.onEvent(AbstractComponent.java:2752)
at org.zkoss.zk.ui.AbstractComponent.service(AbstractComponent.java:2723)
at org.zkoss.zk.ui.AbstractComponent.service(AbstractComponent.java:2664)
at org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:136)
at org.zkoss.zk.ui.impl.UiEngineImpl.processEvent(UiEngineImpl.java:1765)
at org.zkoss.zk.ui.impl.UiEngineImpl.process(UiEngineImpl.java:1550)
at org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1260)
at org.zkoss.zk.au.http.DHtmlUpdateServlet.process(DHtmlUpdateServlet.java:611)
at org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:485)
at org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:494)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:701)

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