0
我將下面的stacktrace打印到我的日誌/控制檯中。我使用的是Tomcat 6.0和BIRT 2.6.2。這不會阻止觀看者顯示報告，但它佔用了日誌中的寶貴空間。BIRT查看器 - IOException：在序言中不允許使用內容
我發現有人有類似的問題here，但是沒有明確的指示是什麼決議。就像那個鏈接中的海報一樣，我正在升級到BIRT的新版本（2.6.2）。
讓我知道你是否需要關於我的設置的更多信息。我對BIRT相當陌生。 任何歡迎，即使你可以建議一個地方看看。
java.io.IOException: Content is not allowed in prolog.
at org.apache.batik.dom.util.SAXDocumentFactory.createDocument(Unknown Source)
at org.apache.batik.dom.util.SAXDocumentFactory.createDocument(Unknown Source)
at org.apache.batik.dom.svg.SAXSVGDocumentFactory.createDocument(Unknown Source)
at org.apache.batik.dom.svg.SAXSVGDocumentFactory.createDocument(Unknown Source)
at org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(Unknown Source)
at org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(Unknown Source)
at org.eclipse.birt.report.engine.util.SvgFile.transSvgToArray(SvgFile.java:78)
at org.eclipse.birt.report.engine.util.SvgFile.transSvgToArray(SvgFile.java:58)
at org.eclipse.birt.report.engine.emitter.html.HTMLReportEmitter.handleStyleImage(HTMLReportEmitter.java:3423)
at org.eclipse.birt.report.engine.emitter.html.AttributeBuilder.buildBackground(AttributeBuilder.java:114)
at org.eclipse.birt.report.engine.emitter.html.HTMLVisionOptimize.buildStyle(HTMLVisionOptimize.java:106)
at org.eclipse.birt.report.engine.emitter.html.HTMLReportEmitter.outputCSSStyles(HTMLReportEmitter.java:906)
at org.eclipse.birt.report.engine.emitter.html.HTMLReportEmitter.start(HTMLReportEmitter.java:722)
at org.eclipse.birt.report.engine.emitter.CompositeContentEmitter.start(CompositeContentEmitter.java:225)
at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.doRun(RunAndRenderTask.java:179)
at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.run(RunAndRenderTask.java:77)
at org.eclipse.birt.report.service.ReportEngineService.runAndRenderReport(ReportEngineService.java:928)
at org.eclipse.birt.report.service.BirtViewerReportService.runAndRenderReport(BirtViewerReportService.java:973)
at org.eclipse.birt.report.service.actionhandler.BirtRunAndRenderActionHandler.__execute(BirtRunAndRenderActionHandler.java:76)
at org.eclipse.birt.report.service.actionhandler.AbstractBaseActionHandler.execute(AbstractBaseActionHandler.java:90)
at org.eclipse.birt.report.presentation.aggregation.layout.EngineFragment.doService(EngineFragment.java:318)
at org.eclipse.birt.report.presentation.aggregation.AbstractBaseFragment.service(AbstractBaseFragment.java:76)
at org.eclipse.birt.report.servlet.BirtEngineServlet.__doGet(BirtEngineServlet.java:120)
at org.eclipse.birt.report.servlet.BaseReportEngineServlet.doGet(BaseReportEngineServlet.java:185)
at org.eclipse.birt.report.servlet.BaseReportEngineServlet.doPost(BaseReportEngineServlet.java:224)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.eclipse.birt.report.servlet.BaseReportEngineServlet.service(BaseReportEngineServlet.java:116)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.eclipse.birt.report.filter.ViewerFilter.doFilter(ViewerFilter.java:68)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:722)