PI50020: JAXB UNMDARSHALLING DOES NOT WORK CORRECTLY, AND RETURNS NULL FOR A SIMPLE XML STRING.

8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• When using the JAXB Unmarshalling in WebSphere Application
  Server run time, it does not work . Unmarshalling a simple XML
  string, all values will return null. When a
  ValidationEventHandler is set, the XML string is unmarshalled
  correctly.
  
  WebSphere Application Server V 8.5
  Distributed operating systems.
  

Local fix

• NA
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server V8.5                                 *
  ****************************************************************
  * PROBLEM DESCRIPTION: JAXB Unmarshaller produces a null       *
  *                      value when an XML element starts with   *
  *                      an upper case letter under cetain       *
  *                      conditions                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When unmarshalling XML document such as:
  <?xml version="1.0" encoding="UTF-8"?>
  <root>
  <Text>Example</Text>
  </root>
  If Java field name is declared as:
  @XmlRootElement(name="root")
  public class Root {
  public String Text;
  }
  Value of the Text element will be null
  

Problem conclusion

• Changed behavior to make sure java field names are not altered
  during the unmarhalling process for elements
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.5.5.9.  Please refer to the Recommended Updates
  page for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

Temporary fix

• Possible fixes:
  
  1. Use @XmlElement annotation:
  @XmlElement(name="Text")
  public String Text;
  
  2. Use a lower case first letter in your code and XML:
  public String text;
  

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

• R850 PSY

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