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Posted to users@pdfbox.apache.org by Lachlan Deck <la...@gmail.com> on 2021/04/07 10:43:22 UTC

java.lang.NoClassDefFoundError: Could not initialize class org.apache.pdfbox.pdmodel.PDDocument

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
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Re: java.lang.NoClassDefFoundError: Could not initialize class org.apache.pdfbox.pdmodel.PDDocument

Posted by Lachlan Deck <la...@gmail.com>.
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 <ar...@gmail.com> 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 <TH...@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 <an...@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-unsubscribe@pdfbox.apache.org
>>>>> For additional commands, e-mail: users-help@pdfbox.apache.org
>>>> 
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe@pdfbox.apache.org
>>>> For additional commands, e-mail: users-help@pdfbox.apache.org
>>>> 
>>> 
>> 
>> 
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@pdfbox.apache.org
>> For additional commands, e-mail: users-help@pdfbox.apache.org
>> 
>> 


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Re: java.lang.NoClassDefFoundError: Could not initialize class org.apache.pdfbox.pdmodel.PDDocument

Posted by aravinth thangasami <ar...@gmail.com>.
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 <TH...@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 <an...@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-unsubscribe@pdfbox.apache.org
> >>> For additional commands, e-mail: users-help@pdfbox.apache.org
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: users-unsubscribe@pdfbox.apache.org
> >> For additional commands, e-mail: users-help@pdfbox.apache.org
> >>
> >
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@pdfbox.apache.org
> For additional commands, e-mail: users-help@pdfbox.apache.org
>
>

Re: java.lang.NoClassDefFoundError: Could not initialize class org.apache.pdfbox.pdmodel.PDDocument

Posted by Tilman Hausherr <TH...@t-online.de>.
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 <an...@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-unsubscribe@pdfbox.apache.org
>>> For additional commands, e-mail: users-help@pdfbox.apache.org
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@pdfbox.apache.org
>> For additional commands, e-mail: users-help@pdfbox.apache.org
>>
>


---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@pdfbox.apache.org
For additional commands, e-mail: users-help@pdfbox.apache.org

Re: java.lang.NoClassDefFoundError: Could not initialize class org.apache.pdfbox.pdmodel.PDDocument

Posted by Lachlan Deck <la...@gmail.com>.
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 <an...@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-unsubscribe@pdfbox.apache.org
>> For additional commands, e-mail: users-help@pdfbox.apache.org
> 
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@pdfbox.apache.org
> For additional commands, e-mail: users-help@pdfbox.apache.org
>

Re: java.lang.NoClassDefFoundError: Could not initialize class org.apache.pdfbox.pdmodel.PDDocument

Posted by Andreas Lehmkuehler <an...@lehmi.de>.
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
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