PH46247: Array out of range exception from JAXB unmarshaller when using QName Java type

APAR status

• Closed as program error.

Error description

• Issue reported : When using just the JRE, this program works
  fine.
  When a standard WebSphere Application Server jar file is added
  to the classpath, the deserialization fails with an exception.
  
  Case description:
  This fix is for tWAS 8.5, 9.0 and Liberty
  
  WebSphere Application Server (Liberty, version 21.0.0.9) jar
  $ java -classpath
  ../bin:$WLP/lib/com.ibm.ws.xlxp.1.5.3_1.0.56.jar
  com.example.JaxbTest
  
  WebSphere Application Server (tWAS) jar version 8.5.5.20:
  
  $ WAS=.../AppServer
  $ java -classpath ../bin:$WAS/plugins/com.ibm.ws.prereq.xlxp.jar
  com.example.JaxbTest
  $ java -classpath
  ../bin:$WAS/runtimes/com.ibm.jaxws.thinclient_8.5.0.jar
  com.example.JaxbTest
  
  Each of the three mentioned jars contains a files
  META-INF/services/javax.xml.bind.JAXBContext.
  
  Exception:
  
  java.lang.ArrayIndexOutOfBoundsException: Array index out of
  range: -1
  	at com.ibm.xml.xlxp2.scan.util.XMLCharacterProperties.nameStar
  tChar10(XMLCharacterProperties.java:419)
  	at com.ibm.xml.xlxp2.jaxb.unmarshal.impl.DeserializationContex
  t$JAXPQNameProducer.parseQNameUnbuffered(DeserializationContext
  .java:1669)
  	at com.ibm.xml.xlxp2.jaxb.unmarshal.impl.DeserializationContex
  t$JAXPQNameProducer.parseQName(DeserializationContext.java:1645)
  	at com.ibm.xml.xlxp2.jaxb.unmarshal.impl.DeserializationContex
  t$JAXPQNameProducer.getQNameValue(DeserializationContext.java:1
  633)
  	at com.ibm.xml.xlxp2.jaxb.unmarshal.impl.DeserializationContex
  t.getQNameValue(DeserializationContext.java:1359)
  	at com.example.jaxb.Data_JAXB_Deserialization_Stub.writeAttrib
  uteProperty(com.example.jaxb.Data_JAXB_Deserialization_Stub.jav
  a)
  	at com.ibm.xml.xlxp2.jaxb.unmarshal.impl.DeserializationStub.w
  riteAttributeProperties(DeserializationStub.java:216)
  	at com.example.jaxb.Data_JAXB_Deserialization_Stub.start(com.e
  xample.jaxb.Data_JAXB_Deserialization_Stub.java)
  	at com.ibm.xml.xlxp2.jaxb.unmarshal.impl.DeserializationContex
  t.startComplexType(DeserializationContext.java:702)
  	at com.ibm.xml.xlxp2.jaxb.unmarshal.impl.DeserializationContex
  t.handleRootElementEvent(DeserializationContext.java:313)
  	at com.ibm.xml.xlxp2.jaxb.unmarshal.impl.DeserializationContex
  t.handleRootElementEvent(DeserializationContext.java:279)
  	at com.ibm.xml.xlxp2.jaxb.unmarshal.impl.JAXBDocumentScanner.p
  roduceRootElementEvent(JAXBDocumentScanner.java:176)
  	at com.ibm.xml.xlxp2.scan.DocumentScanner.scanRootElement(Docu
  mentScanner.java:2245)
  	at com.ibm.xml.xlxp2.scan.DocumentScanner.scanProlog(DocumentS
  canner.java:1733)
  	at com.ibm.xml.xlxp2.scan.DocumentScanner.nextEvent(DocumentSc
  anner.java:1323)
  	at com.ibm.xml.xlxp2.scan.DocumentScanner.parseDocumentEntity(
  DocumentScanner.java:1175)
  	at com.ibm.xml.xlxp2.jaxb.unmarshal.impl.JAXBDocumentScanner.u
  nmarshal(JAXBDocumentScanner.java:147)
  	at com.ibm.xml.xlxp2.jaxb.unmarshal.UnmarshallerImpl.unmarshal
  (UnmarshallerImpl.java:131)
  	at com.ibm.xml.xlxp2.jaxb.unmarshal.AbstractUnmarshallerImpl.u
  nmarshal(AbstractUnmarshallerImpl.java:81)
  	at com.example.JaxbTest.main(JaxbTest.java:21)
  

Local fix

• And setting
  System.setProperty("com.ibm.xml.xlxp.jaxb.opti.level", "2");
  looks like a work around.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: Array index out of bounds exception     *
  *                      when                                    *
  *                      unmarshalling XML into QName Java type  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Array index out of bounds exception from JAXB processor when
  unmarshalling XML into QName Java type with multi-byte UTF-8
  characters.
  

Problem conclusion

• The fix for this APAR is targeted for inclusion in fix pack
  8.5.5.22, 9.0.5.13. For more information, see 'Recommended Updat
  for
  WebSphere Application Server':
  https://www.ibm.com/support/pages/node/715553
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WEBSPHERE APP S

• Fixed component ID

  5724J0800

Applicable component levels