svg path tag problem

```
DEBUG 08-17 15:36:29,244 Could not complete request (FrameworkServlet.java:954)
java.lang.IllegalStateException: Don't use the main context as long as a copy is active!
at de.rototor.pdfbox.graphics2d.PdfBoxGraphics2D.checkNoCopyActive(PdfBoxGraphics2D.java:1033)
at de.rototor.pdfbox.graphics2d.PdfBoxGraphics2D.setTransform(PdfBoxGraphics2D.java:1133)
at org.apache.batik.gvt.AbstractGraphicsNode.paint(AbstractGraphicsNode.java:565)
at org.apache.batik.gvt.CompositeGraphicsNode.primitivePaint(CompositeGraphicsNode.java:165)
at org.apache.batik.gvt.CanvasGraphicsNode.primitivePaint(CanvasGraphicsNode.java:159)
at org.apache.batik.gvt.AbstractGraphicsNode.paint(AbstractGraphicsNode.java:509)
at org.apache.batik.gvt.CompositeGraphicsNode.primitivePaint(CompositeGraphicsNode.java:165)
at org.apache.batik.gvt.AbstractGraphicsNode.paint(AbstractGraphicsNode.java:509)
at com.openhtmltopdf.svgsupport.PDFTranscoder$1.render(PDFTranscoder.java:257)
at com.openhtmltopdf.pdfboxout.PdfBoxFastOutputDevice.drawWithGraphics(PdfBoxFastOutputDevice.java:1147)
at com.openhtmltopdf.svgsupport.PDFTranscoder.transcode(PDFTranscoder.java:243)
at org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(XMLAbstractTranscoder.java:142)
at org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(SVGAbstractTranscoder.java:156)
at com.openhtmltopdf.svgsupport.BatikSVGImage.drawSVG(BatikSVGImage.java:201)
at com.openhtmltopdf.pdfboxout.PdfBoxSVGReplacedElement.paint(PdfBoxSVGReplacedElement.java:70)
at com.openhtmltopdf.pdfboxout.PdfBoxFastOutputDevice.paintReplacedElement(PdfBoxFastOutputDevice.java:277)
at com.openhtmltopdf.render.displaylist.DisplayListPainter.paintReplacedElement(DisplayListPainter.java:167)
at com.openhtmltopdf.render.displaylist.DisplayListPainter.paintReplacedElements(DisplayListPainter.java:149)
at com.openhtmltopdf.render.displaylist.DisplayListPainter.paint(DisplayListPainter.java:266)
at com.openhtmltopdf.pdfboxout.PdfBoxRenderer.paintPageFast(PdfBoxRenderer.java:903)
at com.openhtmltopdf.pdfboxout.PdfBoxRenderer.writePDFFast(PdfBoxRenderer.java:624)
at com.openhtmltopdf.pdfboxout.PdfBoxRenderer.createPdfFast(PdfBoxRenderer.java:559)
at com.openhtmltopdf.pdfboxout.PdfBoxRenderer.createPDF(PdfBoxRenderer.java:477)
at com.openhtmltopdf.pdfboxout.PdfBoxRenderer.createPDF(PdfBoxRenderer.java:414)
at com.openhtmltopdf.pdfboxout.PdfBoxRenderer.createPDF(PdfBoxRenderer.java:396)
at com.openhtmltopdf.pdfboxout.PdfRendererBuilder.run(PdfRendererBuilder.java:42)
at com.atguigu.util.PdfUtil.toPdf(PdfUtil.java:66)
at com.atguigu.controller.TeacherController.toPDF(TeacherController.java:69)
at sun.reflect.GeneratedMethodAccessor56.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:214)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:748)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:945)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:876)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:931)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:833)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:807)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:690)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
```

```

```

```
public static void Pdf(HttpServletResponse response, String pdfFileName,String example) throws Exception {
response.setContentType("application/pdf");
response.setHeader("Content-Disposition", "filename=" + new String((pdfFileName + ".pdf").getBytes(), "iso8859-1"));
OutputStream os = response.getOutputStream();
PdfRendererBuilder builder = new PdfRendererBuilder();
builder.useFont(ResourceUtils.getFile("classpath:pdf/fonts/simsun.ttf"), "simsun");
builder.useFastMode();
builder.withHtmlContent(example, ResourceUtils.getURL("classpath:pdf/img/").toString());
builder.toStream(os);
builder.useSVGDrawer(new BatikSVGDrawer(BatikSVGDrawer.SvgScriptMode.INSECURE_ALLOW_SCRIPTS, BatikSVGDrawer.SvgExternalResourceMode.INSECURE_ALLOW_EXTERNAL_RESOURCE_REQUESTS));
builder.run();
}
```
I try to remove the clip-path or style in the path tag and it can work completely.Is this a bug or my problem?