PM16199: THE XML SCHEMA IMPORTER (XERCES OR CLASSIC) FAILS TO IMPORT A SCHEMA THAT CONTAINS EMPTY GROUP ITEMS

APAR status

• Closed as program error.

Error description

• When using the XML schema importer on a schema that contains
  empty group items (groups with no elements), Xerces would get a
  NULL pointer exception and Classic reports 5 warnings and 1
  error.
  
  
  With Xerces the following error is observed:
  A JAVA EXCEPTION HAS BEEN ENCOUNTERED DURING THE SCHEMA PARSING
  JAVA EXCEPTION: null
  CODE STACK:
  java.lang.NullPointerException
   at
  com.ibm.websphere.dtx.xmlsimp.MetadataValidator.eliminateRedunda
  ntCompositors(Unknown Source)
   at
  com.ibm.websphere.dtx.xmlsimp.MetadataValidator.validate(Unknown
  Source)
   at
  com.ibm.websphere.dtx.xmlsimp.XmlSchemaImporter.importXmlSchema(
  Unknown Source)
   at
  com.ibm.websphere.dtx.xmlsimp.XmlSchemaImporter.generateMtsFile(
  Unknown Source)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at
  sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessor
  Impl.java:64)
   at
  sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethod
  AccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:615)
   at
  com.ibm.websphere.dtx.ui.importers.xmlschema.XMLSchemaImporter.g
  enerateTree(Unknown Source)
   at
  com.ibm.websphere.dtx.ui.importers.dialogs.WTXImportWizard.build
  TypeTree(Unknown Source)
   at
  com.ibm.websphere.dtx.ui.importers.dialogs.WTXImportWizard$2.run
  (Unknown Source)
   at
  org.eclipse.jface.operation.ModalContext$ModalContextThread.run(
  ModalContext.java:113)
  PARSE STACK:
  EMPTY OR NOT AVAILABLE
  
  
  The Classic Importer generates errors and warnings.
  The warnings are:
  WARNING (1)[Construct [xsd:any] has been detected. This
  construct is not fully supported in the current version of the
  importer]
  PARSE STACK:
  [xsd:schema] [xsd:include] [xsd:schema] [xsd:import]
  [xsd:schema] [xsd:include] [xsd:schema] [xsd:import]
  [xsd:schema] [xsd:complexType{ name="typenamehere" }]
  [xsd:sequence] [xsd:any]
  

Local fix

• WTXCQ - WTX00034591
  TR / TR
  Circumvention: None
  

Problem summary

• Users Affected:
  WebSphere Transformation Extended Classic and Xerces XML
  importer users
  
  Problem Description:
  When using the XML schema importer on a schema that contains
  empty group items (groups with no elements), Xerces would get a
  NULL pointer exception and Classic reports 5 warnings and 1
  error.
  
  Platforms Affected:
  Windows
  

Problem conclusion

• Corrected Xerces and Classic schema importer to handle schemas
  with empty groups.
  
  Delivered in:
  8.2.0.5, 8.3.0.3
  

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 DESIG

• Fixed component ID

  5724M4008

Applicable component levels

• R820 PSY

     UP

• R830 PSY

     UP