Hey Aravinth, Just to report back after a couple of months of trying this… it seems to be working for us.
Thanks! Cheers, Lachlan Deck > On 10 Apr 2021, at 10:54 pm, aravinth thangasami > <[email protected]> wrote: > > 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 <[email protected]> > 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 <[email protected]> >> 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: [email protected] >>>>> For additional commands, e-mail: [email protected] >>>> >>>> --------------------------------------------------------------------- >>>> To unsubscribe, e-mail: [email protected] >>>> For additional commands, e-mail: [email protected] >>>> >>> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [email protected] >> For additional commands, e-mail: [email protected] >> >> --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
