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  1. XWiki Platform
  2. XWIKI-16640

Possible NPE when using nested wikimacro

    Details

    • Tests:
      Integration
    • Difficulty:
      Unknown
    • Documentation:
      N/A
    • Documentation in Release Notes:
      N/A
    • Similar issues:

      Description

      This error primary happened when using the PdfViewer macro inside a blog post from the Blog application.

      Reproduction steps:
      1. create a new blog
      2. drag and drop a pdf file to the post, copy the file name
      3. use PDF Viewer macro, fullfill "File" with the copied name
      4. the file can be previewed under edit model
      5. save the post (or publish)
      all the published posts with the same problem.

      The full error log as below:

      org.xwiki.rendering.macro.MacroExecutionException: Failed to execute wiki macro
      	at org.xwiki.rendering.wikimacro.internal.DefaultWikiMacro.execute(DefaultWikiMacro.java:109)
      	at org.xwiki.rendering.wikimacro.internal.DefaultWikiMacro.execute(DefaultWikiMacro.java:53)
      	at org.xwiki.rendering.internal.transformation.macro.MacroTransformation.transform(MacroTransformation.java:297)
      	at org.xwiki.rendering.internal.transformation.DefaultRenderingContext.transformInContext(DefaultRenderingContext.java:183)
      	at org.xwiki.rendering.internal.transformation.DefaultTransformationManager.performTransformations(DefaultTransformationManager.java:101)
      	at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:263)
      	at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:133)
      	at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:58)
      	at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:96)
      	at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:39)
      	at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:245)
      	at org.xwiki.sheet.internal.SheetDocumentDisplayer.applySheet(SheetDocumentDisplayer.java:225)
      	at org.xwiki.sheet.internal.SheetDocumentDisplayer.maybeDisplayWithSheet(SheetDocumentDisplayer.java:180)
      	at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:111)
      	at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:52)
      	at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:68)
      	at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:42)
      	at com.xpn.xwiki.doc.XWikiDocument.display(XWikiDocument.java:1208)
      	at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1349)
      	at com.xpn.xwiki.doc.XWikiDocument.displayDocument(XWikiDocument.java:1298)
      	at com.xpn.xwiki.doc.XWikiDocument.displayDocument(XWikiDocument.java:1265)
      	at com.xpn.xwiki.api.Document.displayDocument(Document.java:774)
      	at sun.reflect.GeneratedMethodAccessor557.invoke(Unknown Source)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:498)
      	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
      	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
      	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)
      	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
      	at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:567)
      	at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)
      	at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:142)
      	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
      	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
      	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:106)
      	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
      	at org.xwiki.velocity.introspection.TryCatchDirective.render(TryCatchDirective.java:87)
      	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)
      	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
      	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)
      	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)
      	at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:358)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.evaluateContent(InternalTemplateManager.java:884)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:755)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.lambda$renderFromSkin$0(InternalTemplateManager.java:730)
      	at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:729)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:708)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:694)
      	at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:78)
      	at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2479)
      	at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:2457)
      	at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:992)
      	at sun.reflect.GeneratedMethodAccessor238.invoke(Unknown Source)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:498)
      	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
      	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
      	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)
      	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
      	at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:369)
      	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
      	at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:216)
      	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:311)
      	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:230)
      	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)
      	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
      	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)
      	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)
      	at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:358)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.evaluateContent(InternalTemplateManager.java:884)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:755)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.lambda$renderFromSkin$0(InternalTemplateManager.java:730)
      	at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:729)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:708)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:694)
      	at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:78)
      	at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2479)
      	at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:2457)
      	at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:992)
      	at sun.reflect.GeneratedMethodAccessor238.invoke(Unknown Source)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:498)
      	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
      	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
      	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)
      	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
      	at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:369)
      	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
      	at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:216)
      	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:311)
      	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:230)
      	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)
      	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
      	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)
      	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)
      	at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:358)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.evaluateContent(InternalTemplateManager.java:884)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:755)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.lambda$renderFromSkin$0(InternalTemplateManager.java:730)
      	at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:729)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:708)
      	at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:694)
      	at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:78)
      	at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2479)
      	at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:179)
      	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:513)
      	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:215)
      	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
      	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
      	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
      	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
      	at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
      	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
      	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
      	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
      	at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)
      	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
      	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
      	at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:109)
      	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
      	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
      	at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
      	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
      	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
      	at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
      	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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712)
      	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459)
      	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:384)
      	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
      	at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:102)
      	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
      	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
      	at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:106)
      	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
      	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
      	at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
      	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
      	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
      	at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
      	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
      	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
      	at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
      	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
      	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
      	at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:132)
      	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:490)
      	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
      	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
      	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
      	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
      	at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:679)
      	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
      	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
      	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
      	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853)
      	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587)
      	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
      	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
      	at java.lang.Thread.run(Thread.java:748)
      Caused by: org.xwiki.rendering.RenderingException: Failed to execute renderer
      	at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:260)
      	at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.render(DefaultAsyncRendererExecutor.java:240)
      	at org.xwiki.rendering.async.internal.block.DefaultBlockAsyncRendererExecutor.execute(DefaultBlockAsyncRendererExecutor.java:119)
      	at org.xwiki.rendering.wikimacro.internal.DefaultWikiMacro.execute(DefaultWikiMacro.java:107)
      	... 169 more
      Caused by: org.xwiki.rendering.RenderingException: Error while performing internal macro transformations
      	at org.xwiki.rendering.wikimacro.internal.DefaultWikiMacroRenderer.transform(DefaultWikiMacroRenderer.java:565)
      	at org.xwiki.rendering.wikimacro.internal.DefaultWikiMacroRenderer.render(DefaultWikiMacroRenderer.java:353)
      	at org.xwiki.rendering.wikimacro.internal.DefaultWikiMacroRenderer.render(DefaultWikiMacroRenderer.java:83)
      	at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.lambda$syncRender$0(DefaultAsyncRendererExecutor.java:257)
      	at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98)
      	at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:257)
      	... 172 more
      Caused by: java.lang.NullPointerException
      	at org.xwiki.rendering.wikimacro.internal.DefaultWikiMacroRenderer.extractResult(DefaultWikiMacroRenderer.java:290)
      	at org.xwiki.rendering.wikimacro.internal.DefaultWikiMacroRenderer.transform(DefaultWikiMacroRenderer.java:625)
      	at org.xwiki.rendering.wikimacro.internal.DefaultWikiMacroRenderer.transform(DefaultWikiMacroRenderer.java:554)
      	... 177 more
      

       the screenshot attached.

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              • Assignee:
                surli Simon Urli
                Reporter:
                zhongw Zhong Wei
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                Dates

                • Created:
                  Updated:
                  Resolved:
                  Date of First Response: