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Details

Type: Bug
Resolution: Cannot Reproduce
Priority: Low
Fix Version/s: None
Affects Version/s: 5.7, 5.7-OD-42-046, 6.6.7, 6.11.0, 6.13.6, 6.15.4, 6.15.9
Component/s: Page - Export / Import
Labels:

Support reference count:
35
Symptom Severity:
Severity 3 - Minor
UIS:
8
Bug Fix Policy:
View Atlassian Server bug fix policy

Description

Issue Summary

Exporting a Space to HTML fails if the attachment file in any page within the target Space is missing in the filesystem.
The HTML export fails with the following message:

There was an error in the export. Please check your log files. :java.lang.NullPointerException

PDF and XML exports still work, bypassing the missing attachment.
Accessing the page with the missing attachment also works.

Steps to Reproduce

Install a vanilla instance of Confluence.
- This was validated on versions 6.0.3, 6.13.6 and 6.15.4, including both Server and Data Center deployments.
Create a sample Space.
In that Space, create a sample Page.
In that Page, go to ... > Attachments and upload any file.
Find the attached file in the file system and delete it.
- Refer to Hierarchical File System Attachment Storage so you find the right file.
In the sample Space, go to Space tools > Content Tools > Export.
In Export Formats, choose HTML and click on Next.
In Export HTML Options, choose Normal Export and click on Export.

Expected Results

The HTML export is created and the file can be downloaded by the user.
Confluence gracefully handles the missing file during the export.

Actual Results

The HTML Space export fails with the following error in the UI:

There was an error in the export. Please check your log files. :java.lang.NullPointerException

An error similar to the below is logged in atlassian-confluence.log:

2019-08-22 20:43:14,491 WARN [Long running task: Export Space] [atlassian.confluence.pages.DefaultAttachmentManager] getAttachmentData Could not find data for attachment: Attachment: <FILENAME> v.1 (3702794) admin - com.atlassian.confluence.pages.persistence.dao.filesystem.AttachmentDataFileSystemException: No such file for Attachment: <FILENAME> v.1 (3702794) admin. Were looking at /confluence-home/atlassian-confluence-6.15.4/attachments/ver003/53/235/3735553/42/202/3702792/3702794/1
 -- url: /localhost/spaces/doexportspace.action | referer: http://localhost:26154/localhost/spaces/exportspacehtml.action?key=TE | traceId: 22d1eb1736e9f8d4 | userName: admin | action: doexportspace
2019-08-22 20:43:14,493 ERROR [Long running task: Export Space] [confluence.importexport.impl.HtmlExporter] doExportEntity Error occurred during export.
 -- url: /localhost/spaces/doexportspace.action | referer: http://localhost:26154/localhost/spaces/exportspacehtml.action?key=TE | traceId: 22d1eb1736e9f8d4 | userName: admin | action: doexportspace
java.lang.NullPointerException
	at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:2314)
	at org.apache.commons.io.IOUtils.copy(IOUtils.java:2270)
	at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:2291)
	at org.apache.commons.io.IOUtils.copy(IOUtils.java:2246)
	at com.atlassian.core.util.FileUtils.copyFile(FileUtils.java:410)
	at com.atlassian.confluence.importexport.impl.AbstractRendererExporterImpl.exportResource(AbstractRendererExporterImpl.java:204)
	at com.atlassian.confluence.importexport.impl.HtmlExporter.doExportEntity(HtmlExporter.java:185)
	at com.atlassian.confluence.importexport.impl.HtmlExporter.exportPage(HtmlExporter.java:82)
	at com.atlassian.confluence.importexport.impl.HtmlExporter.exportSpace(HtmlExporter.java:92)
	at com.atlassian.confluence.importexport.impl.AbstractRendererExporterImpl.doExport(AbstractRendererExporterImpl.java:99)
	at com.atlassian.confluence.importexport.impl.HtmlExporter.doExport(HtmlExporter.java:37)
	at com.atlassian.confluence.importexport.DefaultImportExportManager.doExport(DefaultImportExportManager.java:225)
	at com.atlassian.confluence.importexport.DefaultImportExportManager.exportAs(DefaultImportExportManager.java:191)
	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.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
	at com.sun.proxy.$Proxy124.exportAs(Unknown Source)
	at com.atlassian.confluence.importexport.actions.ExportSpaceLongRunningTask$1.doInTransactionWithoutResult(ExportSpaceLongRunningTask.java:144)
	at org.springframework.transaction.support.TransactionCallbackWithoutResult.doInTransaction(TransactionCallbackWithoutResult.java:34)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
	at com.atlassian.confluence.importexport.actions.ExportSpaceLongRunningTask.runInternal(ExportSpaceLongRunningTask.java:117)
	at com.atlassian.confluence.util.longrunning.ConfluenceAbstractLongRunningTask.run(ConfluenceAbstractLongRunningTask.java:26)
	at com.atlassian.confluence.util.longrunning.ManagedTask.run(ManagedTask.java:52)
	at com.atlassian.confluence.impl.util.concurrent.ConfluenceExecutors$ThreadLocalContextTaskWrapper.lambda$wrap$1(ConfluenceExecutors.java:90)
	at com.atlassian.confluence.vcache.VCacheRequestContextOperations.lambda$doInRequestContext$0(VCacheRequestContextOperations.java:50)
	at com.atlassian.confluence.impl.vcache.VCacheRequestContextManager.doInRequestContextInternal(VCacheRequestContextManager.java:87)
	at com.atlassian.confluence.impl.vcache.VCacheRequestContextManager.doInRequestContext(VCacheRequestContextManager.java:71)
	at com.atlassian.confluence.vcache.VCacheRequestContextOperations.doInRequestContext(VCacheRequestContextOperations.java:49)
	at com.atlassian.confluence.vcache.VCacheRequestContextOperations.lambda$withRequestContext$2(VCacheRequestContextOperations.java:66)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	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)
2019-08-22 20:43:14,494 ERROR [Long running task: Export Space] [confluence.importexport.impl.HtmlExporter] doExportEntity Entity being exported was: page: Another page v.1 (3702792)
 -- url: /localhost/spaces/doexportspace.action | referer: http://localhost:26154/localhost/spaces/exportspacehtml.action?key=TE | traceId: 22d1eb1736e9f8d4 | userName: admin | action: doexportspace
2019-08-22 20:43:14,495 ERROR [Long running task: Export Space] [confluence.importexport.actions.ExportSpaceLongRunningTask] doInTransactionWithoutResult Error during export
 -- url: /localhost/spaces/doexportspace.action | referer: http://localhost:26154/localhost/spaces/exportspacehtml.action?key=TE | traceId: 22d1eb1736e9f8d4 | userName: admin | action: doexportspace
com.atlassian.confluence.importexport.ImportExportException: java.lang.NullPointerException
	at com.atlassian.confluence.importexport.impl.HtmlExporter.doExportEntity(HtmlExporter.java:194)
	at com.atlassian.confluence.importexport.impl.HtmlExporter.exportPage(HtmlExporter.java:82)
	at com.atlassian.confluence.importexport.impl.HtmlExporter.exportSpace(HtmlExporter.java:92)
	at com.atlassian.confluence.importexport.impl.AbstractRendererExporterImpl.doExport(AbstractRendererExporterImpl.java:99)
	at com.atlassian.confluence.importexport.impl.HtmlExporter.doExport(HtmlExporter.java:37)
	at com.atlassian.confluence.importexport.DefaultImportExportManager.doExport(DefaultImportExportManager.java:225)
	at com.atlassian.confluence.importexport.DefaultImportExportManager.exportAs(DefaultImportExportManager.java:191)
	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.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
	at com.sun.proxy.$Proxy124.exportAs(Unknown Source)
	at com.atlassian.confluence.importexport.actions.ExportSpaceLongRunningTask$1.doInTransactionWithoutResult(ExportSpaceLongRunningTask.java:144)
	at org.springframework.transaction.support.TransactionCallbackWithoutResult.doInTransaction(TransactionCallbackWithoutResult.java:34)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
	at com.atlassian.confluence.importexport.actions.ExportSpaceLongRunningTask.runInternal(ExportSpaceLongRunningTask.java:117)
	at com.atlassian.confluence.util.longrunning.ConfluenceAbstractLongRunningTask.run(ConfluenceAbstractLongRunningTask.java:26)
	at com.atlassian.confluence.util.longrunning.ManagedTask.run(ManagedTask.java:52)
	at com.atlassian.confluence.impl.util.concurrent.ConfluenceExecutors$ThreadLocalContextTaskWrapper.lambda$wrap$1(ConfluenceExecutors.java:90)
	at com.atlassian.confluence.vcache.VCacheRequestContextOperations.lambda$doInRequestContext$0(VCacheRequestContextOperations.java:50)
	at com.atlassian.confluence.impl.vcache.VCacheRequestContextManager.doInRequestContextInternal(VCacheRequestContextManager.java:87)
	at com.atlassian.confluence.impl.vcache.VCacheRequestContextManager.doInRequestContext(VCacheRequestContextManager.java:71)
	at com.atlassian.confluence.vcache.VCacheRequestContextOperations.doInRequestContext(VCacheRequestContextOperations.java:49)
	at com.atlassian.confluence.vcache.VCacheRequestContextOperations.lambda$withRequestContext$2(VCacheRequestContextOperations.java:66)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	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
	at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:2314)
	at org.apache.commons.io.IOUtils.copy(IOUtils.java:2270)
	at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:2291)
	at org.apache.commons.io.IOUtils.copy(IOUtils.java:2246)
	at com.atlassian.core.util.FileUtils.copyFile(FileUtils.java:410)
	at com.atlassian.confluence.importexport.impl.AbstractRendererExporterImpl.exportResource(AbstractRendererExporterImpl.java:204)
	at com.atlassian.confluence.importexport.impl.HtmlExporter.doExportEntity(HtmlExporter.java:185)
	... 36 more

Workaround

Either deleting the attachment from the UI or restoring the attachment in the file system would make the export working again.

Attachments

Issue Links

is duplicated by

CONFSERVER-58750 HTML Space export fails with NPE if attachment file is missing in the file system

Closed

is related to

CONFSERVER-18642 Space Export to HTML is failing with a NPE on EAC due to data problem. Handle more gracefully

Closed

relates to

CONFCLOUD-36513 HTML Export fails when there is non-existing attachment

Closed

mentioned in: Page Loading...; Page Loading...; Page Loading...

(1 mentioned in)

HTML Export fails with NPE error when there is non-existing attachment in the file system