We have faced a similar exception for PDDocument while loading ICC_Profile getInstance, which is not thread-safe. We solved by loading PDDocument class by ourselves during start-up manually to avoid thread issues. Hope it helps.
Thanks Aravinth. On Sat, Apr 10, 2021 at 2:25 PM Tilman Hausherr <thaush...@t-online.de> wrote: > It should be thread-safe. To me it looks like a class loader problem > (NoClassDefFoundError), sadly this is an unknown territory for me. > > Here's an interesting answer on this topic, although it has 0 upvotes > https://stackoverflow.com/a/32478934/535646 > > Tilman > > Am 09.04.2021 um 03:33 schrieb Lachlan Deck: > > Thanks Andreas, > > > > That’s an interesting idea. > > > > So are you suggesting that if, say, two parallel/concurrent threads are > attempting to load the same document (or same effective document—as we’re > passing a byte array into PDDocument.load()) that this could be the cause? > > > > i.e., is PDDocument.load not thread-safe? > > > > Cheers, > > Lachlan > > > >> On 8 Apr 2021, at 4:18 pm, Andreas Lehmkuehler <andr...@lehmi.de> > wrote: > >> > >> Hi, > >> > >> could be an issue with the static initialization of PDDocument due to > the java.util.concurrent.ExecutionException but this is just a wild guess. > >> > >> We need a test case to reproduce this but I'm afraid that isn't that > easy as concurrency issues are likely not deterministic. But maybe someone > comes up with an idea or better a test case. > >> > >> Andreas > >> > >> Am 07.04.21 um 12:43 schrieb Lachlan Deck: > >>> Hi all, > >>> We’re periodically seeing the above exception in a spring-boot api > using PDFBox 2.0.21. > >>> When that occurs the only remedy appears to be restarting the api, > after which it hums along fine for a day and then hits this error again. > >>> We’re producing pdfs with jasper (plus taking some optional custom > pdfs), then using PDFBox to overlay or stitch things together into a final > pdf. > >>> Does anyone know what might cause this to happen, and if it’s > potentially fixed by the recent 2.0.23 release? > >>> our.springboot.api.exception.RenderException: failed to render a > template > >>> at our.springboot.api.Rendering... > >>> at java.base/java.util.stream.ReferencePipeline$3$1.accept(Unknown > Source) > >>> at > java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(Unknown > Source) > >>> at java.base/java.util.stream.AbstractPipeline.copyInto(Unknown > Source) > >>> at > java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source) > >>> at > java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(Unknown > Source) > >>> at java.base/java.util.stream.AbstractPipeline.evaluate(Unknown > Source) > >>> at java.base/java.util.stream.ReferencePipeline.collect(Unknown > Source) > >>> ... > >>> at jdk.internal.reflect.GeneratedMethodAccessor193.invoke(Unknown > Source) > >>> at > java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown > Source) > >>> at java.base/java.lang.reflect.Method.invoke(Unknown Source) > >>> at > org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) > >>> at > org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) > >>> at > org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) > >>> at > org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878) > >>> at > org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792) > >>> at > org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) > >>> at > org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) > >>> at > org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) > >>> at > org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) > >>> at > org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) > >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:652) > >>> at > org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) > >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) > >>> 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 brave.servlet.TracingFilter.doFilter(TracingFilter.java:68) > >>> 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.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) > >>> at > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) > >>> 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.FormContentFilter.doFilterInternal(FormContentFilter.java:93) > >>> at > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) > >>> at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) > >>> at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > >>> at brave.servlet.TracingFilter.doFilter(TracingFilter.java:87) > >>> at > org.springframework.cloud.sleuth.instrument.web.LazyTracingFilter.doFilter(TraceWebServletAutoConfiguration.java:139) > >>> at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) > >>> at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > >>> at > org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:93) > >>> at > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) > >>> 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:201) > >>> at > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) > >>> at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) > >>> at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) > >>> at > org.cloudfoundry.router.ClientCertificateMapper.doFilter(ClientCertificateMapper.java:79) > >>> 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.core.StandardEngineValve.invoke(StandardEngineValve.java:74) > >>> at > org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:747) > >>> 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$SocketProcessor.doRun(NioEndpoint.java:1589) > >>> at org.apache.tomcat.util.net > .SocketProcessorBase.run(SocketProcessorBase.java:49) > >>> at > java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) > >>> at > java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) > >>> at > org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) > >>> at java.base/java.lang.Thread.run(Unknown Source) > >>> Caused by: java.util.concurrent.ExecutionException: > java.lang.NoClassDefFoundError: Could not initialize class > org.apache.pdfbox.pdmodel.PDDocument > >>> at java.base/java.util.concurrent.FutureTask.report(Unknown Source) > >>> at java.base/java.util.concurrent.FutureTask.get(Unknown Source) > >>> at our.springboot.api.v3.service.FooBar > >>> ... 76 common frames omitted > >>> Caused by: java.lang.NoClassDefFoundError: Could not initialize class > org.apache.pdfbox.pdmodel.PDDocument > >>> at > our.springboot.api.domain.PDDocumentLoader.load(PDDocumentLoader.java:14) > >>> … > >>> at > org.springframework.cloud.sleuth.instrument.async.TraceCallable.call(TraceCallable.java:71) > >>> at java.base/java.util.concurrent.FutureTask.run(Unknown Source) > >>> at > java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) > >>> at > java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) > >>> ... 1 common frames omitted > >>> Kind regards, > >>> Lachlan Deck > >>> --------------------------------------------------------------------- > >>> To unsubscribe, e-mail: users-unsubscr...@pdfbox.apache.org > >>> For additional commands, e-mail: users-h...@pdfbox.apache.org > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: users-unsubscr...@pdfbox.apache.org > >> For additional commands, e-mail: users-h...@pdfbox.apache.org > >> > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@pdfbox.apache.org > For additional commands, e-mail: users-h...@pdfbox.apache.org > >
