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XMLEventFactory cannot be created when exporting data to XLSX Format

Samer Sboui
Samer Sboui August 24, 2018

Hi developers, i got this error while trying to export data in XLSX format ! How should i fix it ? 

javax.xml.stream.FactoryConfigurationError: Provider for class javax.xml.stream.XMLEventFactory cannot be created
[INFO] [talledLocalContainer] at javax.xml.stream.FactoryFinder.findServiceProvider(FactoryFinder.java:370)
[INFO] [talledLocalContainer] at javax.xml.stream.FactoryFinder.find(FactoryFinder.java:313)
[INFO] [talledLocalContainer] at javax.xml.stream.FactoryFinder.find(FactoryFinder.java:227)
[INFO] [talledLocalContainer] at javax.xml.stream.XMLEventFactory.newInstance(XMLEventFactory.java:64)
[INFO] [talledLocalContainer] at org.apache.poi.openxml4j.opc.internal.marshallers.PackagePropertiesMarshaller.<clinit>(PackagePropertiesMarshaller.java:41)
[INFO] [talledLocalContainer] at org.apache.poi.openxml4j.opc.OPCPackage.init(OPCPackage.java:161)
[INFO] [talledLocalContainer] at org.apache.poi.openxml4j.opc.OPCPackage.<init>(OPCPackage.java:141)
[INFO] [talledLocalContainer] at org.apache.poi.openxml4j.opc.ZipPackage.<init>(ZipPackage.java:72)
[INFO] [talledLocalContainer] at org.apache.poi.openxml4j.opc.OPCPackage.create(OPCPackage.java:394)
[INFO] [talledLocalContainer] at org.apache.poi.xssf.usermodel.XSSFWorkbook.newPackage(XSSFWorkbook.java:480)
[INFO] [talledLocalContainer] at org.apache.poi.xssf.usermodel.XSSFWorkbook.<init>(XSSFWorkbook.java:247)
[INFO] [talledLocalContainer] at org.apache.poi.xssf.usermodel.XSSFWorkbook.<init>(XSSFWorkbook.java:239)

....

....

....

... 304 more
[INFO] [talledLocalContainer] Caused by: java.util.ServiceConfigurationError: javax.xml.stream.XMLEventFactory: Provider com.ctc.wstx.stax.WstxEventFactory could not be instantiated
[INFO] [talledLocalContainer] at java.util.ServiceLoader.fail(ServiceLoader.java:232)
[INFO] [talledLocalContainer] at java.util.ServiceLoader.access$100(ServiceLoader.java:185)
[INFO] [talledLocalContainer] at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:384)
[INFO] [talledLocalContainer] at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)
[INFO] [talledLocalContainer] at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
[INFO] [talledLocalContainer] at javax.xml.stream.FactoryFinder$1.run(FactoryFinder.java:353)
[INFO] [talledLocalContainer] at java.security.AccessController.doPrivileged(Native Method)
[INFO] [talledLocalContainer] at javax.xml.stream.FactoryFinder.findServiceProvider(FactoryFinder.java:341)
[INFO] [talledLocalContainer] ... 304 more
[INFO] [talledLocalContainer] Caused by: java.lang.LinkageError: loader constraint violation: when resolving overridden method "com.ctc.wstx.stax.WstxEventFactory.createAttribute(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljavax/xml/stream/events/Attribute;" the class loader (instance of org/apache/felix/framework/BundleWiringImpl$BundleClassLoaderJava5) of the current class, com/ctc/wstx/stax/WstxEventFactory, and its superclass loader (instance of <bootloader>), have different Class objects for the type javax/xml/stream/events/Attribute used in the signature
[INFO] [talledLocalContainer] at java.lang.Class.getDeclaredConstructors0(Native Method)
[INFO] [talledLocalContainer] at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
[INFO] [talledLocalContainer] at java.lang.Class.getConstructor0(Class.java:3075)
[INFO] [talledLocalContainer] at java.lang.Class.newInstance(Class.java:412)

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Shannon S
Shannon S
Atlassian Team
Atlassian Team members are employees working across the company in a wide variety of roles.
August 29, 2018

Samer,

You mentioned developers - are you developing an add-on that is causing this error? How exactly are you exporting the XLSX data from Confluence? 

Let us know exactly what you did when you ran into this error, and please also include your Confluence version.

Lastly, from your logs, do you see any that are listed as [ERROR] rather than [INFO]? That should provide us with further details.

Regards,

Shannon

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Samer Sboui
Samer Sboui August 29, 2018

yeah, i'm developing a confluence add-on and i got this error.

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Shannon S
Shannon S
Atlassian Team
Atlassian Team members are employees working across the company in a wide variety of roles.
August 30, 2018

Samer,

Thank you for confirming.

In that case, we have a separate Community for developing add-ons for our products. You may have better luck there.

Regards,

Shannon

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