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Code  ›  org.apache.poi.xwpf.converter.core.XWPFConverterException: java.lang.NullPointerException while converting from DOCX to PDF - Stac
https://stackoverflow.com/questions/47306557/org-apache-poi-xwpf-converter-core-xwpfconverterexception-java-lang-nullpointer
气宇轩昂的竹笋
1 年前
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org.apache.poi.xwpf.converter.core.XWPFConverterException: java.lang.NullPointerException while converting from DOCX to PDF

Ask Question Here is my method` 

private GeneratePdfDtoResponse savePdfFile(XWPFDocument xwpfDocument, String pdfFileName) {
        OutputStream out = null;
        try {
            String pdfFilePath = PDF_FILES_PATH + removeExtension(pdfFileName) + PDF_EXTENSION;
            PdfOptions options = PdfOptions.create();
            out = new FileOutputStream(new File(pdfFilePath));
            PdfConverter.getInstance().convert(xwpfDocument, out, options);
            return new GeneratePdfDtoResponse(new File(PDF_FILES_PATH));
        } catch (IOException e) {
            LOG.error(e.getMessage());
            return new GeneratePdfDtoResponse(null);
        }finally {
            closeOutputStream(out);

And i'm getting next exception 
But yesterday it worked fine and I've changed only docx file
PdfConverter.getInstance().convert(xwpfDocument, out, options); this line.


Here is stacktrace:

  
org.apache.poi.xwpf.converter.core.XWPFConverterException: java.lang.NullPointerException
      at org.apache.poi.xwpf.converter.pdf.PdfConverter.doConvert(PdfConverter.java:70)
      at org.apache.poi.xwpf.converter.pdf.PdfConverter.doConvert(PdfConverter.java:38)
      at org.apache.poi.xwpf.converter.core.AbstractXWPFConverter.convert(AbstractXWPFConverter.java:45)
      at pl.amw.emr.service.impl.TemplateHandlerServiceImpl.savePdfFile(TemplateHandlerServiceImpl.java:341)
      at pl.amw.emr.service.impl.TemplateHandlerServiceImpl.generatePdf(TemplateHandlerServiceImpl.java:99)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
      at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:85)
      at pl.amw.emr.aop.logging.LoggingAspect.logAround(LoggingAspect.java:85)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:629)
      at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:618)
      at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
      at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
      at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
      at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
      at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
      at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
      at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
      at com.sun.proxy.$Proxy166.generatePdf(Unknown Source)
      at pl.amw.emr.web.rest.template.TemplateGeneratorController.postGeneratePdfFromDocTemplate(TemplateGeneratorController.java:57)
      at pl.amw.emr.web.rest.template.TemplateGeneratorController$$FastClassBySpringCGLIB$$902d3628.invoke()
      at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
      at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
      at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:85)
      at pl.amw.emr.aop.logging.LoggingAspect.logAround(LoggingAspect.java:85)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:629)
      at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:618)
      at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
      at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
      at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
      at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673)
      at pl.amw.emr.web.rest.template.TemplateGeneratorController$$EnhancerBySpringCGLIB$$91241e2c.postGeneratePdfFromDocTemplate()
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
      at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
      at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
      at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
      at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
      at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
      at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
      at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
      at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
      at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
      at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
      at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
      at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
      at com.codahale.metrics.servlet.AbstractInstrumentedFilter.doFilter(AbstractInstrumentedFilter.java:111)
      at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
      at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
      at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55)
      at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
      at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
      at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
      at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101)
      at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
      at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
      at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:110)
      at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
      at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
      at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317)
      at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
      at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
      at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
      at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
      at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
      at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
      at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
      at pl.amw.emr.security.jwt.JWTFilter.doFilter(JWTFilter.java:36)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
      at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:96)
      at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
      at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
      at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64)
      at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
      at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
      at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
      at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
      at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
      at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214)
      at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)
      at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
      at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)
      at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
      at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
      at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
      at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
      at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
      at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
      at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105)
      at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
      at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
      at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
      at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81)
      at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
      at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
      at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
      at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
      at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
      at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
      at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
      at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
      at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
      at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
      at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
      at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
      at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
      at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
      at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
      at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
      at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
      at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
      at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
      at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
      at io.undertow.servlet.handlers.SessionRestoringHandler.handleRequest(SessionRestoringHandler.java:119)
      at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292)
      at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81)
      at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138)
      at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135)
      at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
      at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
      at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272)
      at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
      at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104)
      at io.undertow.server.Connectors.executeRootHandler(Connectors.java:211)
      at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:809)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
      at java.lang.Thread.run(Thread.java:748)
  Caused by: java.lang.NullPointerException: null
      at org.apache.poi.xwpf.converter.core.styles.run.RunUnderlineValueProvider.getValue(RunUnderlineValueProvider.java:40)
      at org.apache.poi.xwpf.converter.core.styles.run.RunUnderlineValueProvider.getValue(RunUnderlineValueProvider.java:31)
      at org.apache.poi.xwpf.converter.core.styles.run.AbstractRunValueProvider.getValueFromStyle(AbstractRunValueProvider.java:82)
      at org.apache.poi.xwpf.converter.core.styles.AbstractValueProvider.getValueFromStyleId(AbstractValueProvider.java:334)
      at org.apache.poi.xwpf.converter.core.styles.AbstractValueProvider.getValueFromStyleIds(AbstractValueProvider.java:273)
      at org.apache.poi.xwpf.converter.core.styles.AbstractValueProvider.getValueFromStyles(AbstractValueProvider.java:83)
      at org.apache.poi.xwpf.converter.core.styles.AbstractValueProvider.internalGetValue(AbstractValueProvider.java:61)
      at org.apache.poi.xwpf.converter.core.styles.AbstractValueProvider.getValue(AbstractValueProvider.java:41)
      at org.apache.poi.xwpf.converter.core.styles.XWPFStylesDocument.getUnderline(XWPFStylesDocument.java:692)
      at org.apache.poi.xwpf.converter.pdf.internal.PdfMapper.visitRun(PdfMapper.java:475)
      at org.apache.poi.xwpf.converter.pdf.internal.PdfMapper.visitRun(PdfMapper.java:111)
      at org.apache.poi.xwpf.converter.core.XWPFDocumentVisitor.visitRuns(XWPFDocumentVisitor.java:616)
      at org.apache.poi.xwpf.converter.core.XWPFDocumentVisitor.visitParagraphBody(XWPFDocumentVisitor.java:441)
      at org.apache.poi.xwpf.converter.core.XWPFDocumentVisitor.visitParagraph(XWPFDocumentVisitor.java:332)
      at org.apache.poi.xwpf.converter.core.XWPFDocumentVisitor.visitBodyElements(XWPFDocumentVisitor.java:247)
      at org.apache.poi.xwpf.converter.core.XWPFDocumentVisitor.start(XWPFDocumentVisitor.java:199)
      at org.apache.poi.xwpf.converter.pdf.PdfConverter.doConvert(PdfConverter.java:56)
      ... 164 common frames omitted

                Based on the package names in your stacktrace, I can tell you're not using the most recent version of the converter. What happens when you upgrade to the most recent version and try again?
– Gagravarr
                Nov 15, 2017 at 13:47
                I'm using <dependency>             <groupId>fr.opensagres.xdocreport</groupId>             <artifactId>org.apache.poi.xwpf.converter.pdf</artifactId>             <version>1.0.6</version>         </dependency>
– serg
                Nov 15, 2017 at 14:45
                Which is not the latest... See mvnrepository.com/artifact/fr.opensagres.xdocreport/… - it's currently 2.0.1
– Gagravarr
                Nov 15, 2017 at 15:06

try add
 "xwpfDocument.createNumbering()" before
PdfConverter.getInstance().convert(xwpfDocument, out, options);
In my code, the numbering of XWPFDocument variable is null, cause the NullPointerException.


Wish above will help you.

        
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