PM53788: IBM Rational Software Architect Design Manager: Unable to load diagram message using the Web UI

Rational Software Architect Extension for Design Management 4.0
Rational Rhapsody Design Manager 4.0.6
Rational Software Architect Design Manager 4.0.6
Rational Software Architect Design Manager 4.0.7
Rational Rhapsody Design Manager 4.0
Rational Rhapsody Design Manager 4.0.7

APAR status

• Closed as program error.

Error description

• Environment:
  - Microsoft Windows Win 2008 r2
   - IBM Rational Software Architect Design Manager 3.0.0.1
  
  Reproducible Y/N: Intermittently:
  Description of problem:
  You may get the error message 'Unable to load diagram' and the
  symptom is that the diagram is not loaded in DM web ui.
  When doing refresh on the yellow refresh button 2-5 times it
  loads the diagram
  After a nightly import the cached diagram is cleaned and the
  problem reoccur, not necessary on the same diagram.
  
  The dm.log gives this message when it happens:
  ---
  2011-11-25 12:51:18,523 [ DM Default Display Thread] [] ERROR
  com.ibm.xtools.rmps.core.RmpsRDFResourceFactory - Problems
  loading resource
  https://<fully_qualified_host_name>:9443/dm/models/4414:
  2011-11-25 12:51:18,523 [ DM Default Display Thread] [] ERROR
  com.ibm.xtools.rmps.core.RmpsRDFResourceFactory - The value of
  feature eAnnotations is not valid:
  org.eclipse.emf.ecore.impl.EAnnotationImpl@4c304c30 (source:
  null)
  2011-11-25 12:51:18,523 [ DM Default Display Thread] [] ERROR
  com.ibm.xtools.rmps.core.RmpsRDFResourceFactory - The value of
  feature eAnnotations is not valid:
  org.eclipse.emf.ecore.impl.EAnnotationImpl@4f544f54 (source:
  null)
  2011-11-25 12:51:18,523 [ DM Default Display Thread] [] ERROR
  com.ibm.xtools.rmps.core.RmpsRDFResourceFactory - The value of
  feature eAnnotations is not valid:
  com.ibm.xtools.uml.msl.internal.resources.impl.DiagramHolderImpl
  @529b529b (source: null)
  2011-11-25 12:51:18,523 [ DM Default Display Thread] [] ERROR
  com.ibm.xtools.rmps.core.RmpsRDFResourceFactory - The value of
  feature eAnnotations is not valid:
  org.eclipse.emf.ecore.impl.EAnnotationImpl@55c355c3 (source:
  null)
  2011-11-25 12:51:18,523 [ DM Default Display Thread] [] ERROR
  com.ibm.xtools.rmps.core.RmpsRDFResourceFactory - The value of
  feature name is not valid: ATM_TRAN
  2011-11-25 12:51:18,523 [ DM Default Display Thread] [] ERROR
  com.ibm.xtools.rmps.core.RmpsRDFResourceFactory - The value of
  feature ownedAttribute is not valid:
  com.ibm.xtools.uml.rt.core.internal.uml.RTPortImpl@5c745c74
  (eProxyURI:
  https://<fully_qualified_host_name>:9443/dm/models/4416#main_441
  6)
  ...
  2011-11-25 12:51:18,523 [ DM Default Display Thread] [] ERROR
  com.ibm.xtools.rmps.core.RmpsRDFResourceFactory - The value of
  feature ownedBehavior is not valid:
  org.eclipse.uml2.uml.internal.impl.StateMachineImpl@71657165
  (eProxyURI:
  https://<fully_qualified_host_name>:9443/dm/models/4474#main_447
  4)
  2011-11-25 12:51:19,007 [ WebContainer : 18] [] ERROR
  com.ibm.xtools.rmps.frontservice.jfsclient.RmpsRuntimeException
  - <rdf:RDF
  xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#';
  xmlns:err='http://jazz.net/xmlns/prod/jazz/foundation/1.0/'>;
  <rdf:Description>
  <err:detailedMessage
  rdf:datatype='http://www.w3.org/2001/XMLSchema#string';
  >
  Rmps Request Line:
  GET
  https://<fully_qualified_host_name>:9443/dm/diagrams/image?diagr
  amUri=https%3A%2F%2F<fully_qualified_host_name>%3A9443%2Fdm%2Fmo
  dels%2F4415&amp;tiled=true&amp;dojo.preventCache=1322221870188
  HTTP/1.1
  Rmps Request Headers:
  Host: <fully_qualified_host_name>:9443
  User-Agent: Mozilla/5.0 (Windows NT 6.0; rv:7.0.1)
  Gecko/20100101 Firefox/7.0.1
  Accept: application/json
  Accept-Language: en-gb,en;q=0.5
  Accept-Encoding: gzip, deflate
  Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
  Connection: keep-alive
  X-ibm-rmps-internal: true
  Content-Type: application/x-www-form-urlencoded
  X-Requested-With: XMLHttpRequest
  Referer:
  https://<fully_qualified_host_name>:9443/dm/web/projects/CPP_Dev
  Cookie:
  jfs-oauth-realm-mapping=https%3A%2F%2F<fully_qualified_host_name
  >%3A9443%2Fjts%3D0;
  jfs-oauth-access-token0=0151be347631494fb2ca5f259ddec8a0;
  jfs-oauth-access_token-secret0=xx2KGuZljiJn85XOE3kCTHxUzWpnVui5r
  XUv3N02J98=; JSESSIONID=0000_3E-um8vwq8oeoBLw2G9HQw:-1;
  LtpaToken2=jPVzlA/x3u4i359cgcvP3SAmyHMLo38VFCZFgdS0kG1KTwmm+2dHs
  1fjoBFqnt9yVC4L2xP8CDWbLofrHoB8lD6kLaspWZHVufTQQJLJ/9dRZZ//E6avz
  VJOdLglck4w4SA927mFUvkZhew/9g4FN83DSsQ01knYx2/BYM6yZds3tENJAB4fo
  bt8ncnpRdwHRY/J5oeZTdgD2EqkQxamVwf0ol0bmfQiU/9q9kIuHRkPjlB0BeBe5
  PLP2kFu/KnnJNJUCQIUDrPUGWUewmxlNCjc3CIKlX4Y77H071ldV2oJp3tIxgIQy
  rmwFjlN7E+e3bWLoOkViV2Lgw+lgvWFq34mPafn/EXiiEiZMgDFFEk040eV9Gm46
  HerM/QyhbgDppT2cLP67jDd1+/+vfN9OatTChIU9OqPktrZBTnEKvqu1lQrVgn61
  Jt/Sh2HsPRLVpOqBKkzsTtNKasdn0uCBhSkOkEL7azkdh4pyZjgfsy1q7tErYA56
  JJos2PzNva+HOlfok1WSONUtmtnowq6mzW7BO87n8rCcAWa43dWUr11k5BS7FAd3
  tsn+cV2ZuCedhkenVDjaLdGfcBfgdasG5/HIbEIy1ZZXS6bC58hwT7SKvDoR17G7
  1bV0sZbIUcCX7pJ9tVB2MxeSfitmdC28TfxjTDJhLYy+G7fXGNxi2R5h70pfoma3
  eH/UOo9PnXa8bZ1O/d9Publ4hal2ulrphoamoDvStMcCrx5j1mpxl+f/VA6oqvrQ
  OnfApA0q5VR
  org.eclipse.swt.SWTException: Failed to execute runnable
  (java.lang.NullPointerException)&#xD;
  
  This issue was reported against the following eclipse bugzilla:
  https://bugs.eclipse.org/bugs/show_bug.cgi?id=359582
  DiagramEventBroker doesn't check if the WeakReference's get()
  method returns null
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When opening a diagram on the web client a message of
  "Unable to load Diagram" may be displayed and the diagram
  would not be displayed. This may happen on slow servers and
  only if the diagram image is not cached already, which is a
  rare case with externally managed project areas.
  

Problem conclusion

• Fixed a race condition where obtaining an event broker was
  not checking for possible return of null. This is fixed in
  Rational Software Architect Design Manager 4.0.
  

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

  RSA DESIGN MANA

• Fixed component ID

  5725D7900

Applicable component levels

• R300 PSN

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