Instancing XMLStreamWriterFactory failed: unsupported property isRepairingNamespaces

Question

In our application we encounter very sporadic run time exceptions which crash our message processors (which are stand-alone java processes running on Java 8). The processors, at the time of this exception, generally try to execute a web service call.

The exception are

java.lang.Error: Failed to create new instance of com.sun.xml.internal.ws.api.streaming.XMLStreamWriterFactory$1
  at com.sun.xml.internal.ws.api.streaming.ContextClassloaderLocal.createNewInstance(ContextClassloaderLocal.java:63)
  ..
Caused by: java.lang.IllegalArgumentException: Unable to access unsupported property javax.xml.stream.isRepairingNamespaces
  at weblogic.xml.stax.ConfigurationContextBase.check(ConfigurationContextBase.java:90)

The strange thing is, the whole application is running without errors 99.9% of the time: the above exceptions happen quite infrequently (ca. every couple of days). After a crash, the processors are restarted automatically, and again operate perfectly fine, until the same exception occurs again after a seemingly random interval.

So far we could not correlate this with any misbehavior on the part of the JVM or the host the application is running on.

Does anyone have any pointers as to why such an unsupported property javax.xml.stream.isRepairingNamespaces exception could appear sporadically?

We're running jdk1.8.0_66 on Red Hat 4.8.5-4. Web service interfaces are generated using JAX-WS.

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Edit:
I can't share the classpath (lots of internal info, sorry). We do have the Weblogic full client in there though: wlfullclient-12.1.3.jar. It defines an XML factory via ServiceLoader

META-INF/services/javax.xml.stream.XMLOutputFactory --> weblogic.xml.jaxp.RegistryXMLOutputFactory

Where as xml-apis-1.4.01.jar (also on classpath) contains javax/xml/stream/XMLOutputFactory.class (related to the exception thrown in ConfigurationContextBase).

Could this be part of the problem?

Answer 1

You have to change the class path order. At first point all the axis2 jars and then point the weblogic.jar in class path. Hope it will solve your issue.