RS02086: RES EXECUTION FAILS WITH LINKAGEERROR ON WEBLOGIC 12C

Operational Decision Manager V8.7.1.2 Fix Pack

APAR status

• Closed as program error.

Error description

• RES execution on Weblogic 12c may fail with an exception such
  as:
  java.lang.LinkageError: loader constraint violation: when
  resolving method "com.ibm.rules.res.xu.client.internal.XUClient.
  createRuleEngineSession(Lilog/rules/res/model/IlrPath;
  Ljava/lang/ClassLoader;
  Lcom/ibm/rules/engine/connector/DataConnectorFactory;
  Ljava/io/Serializable;Ljava/lang/String;)
  Lcom/ibm/rules/res/xu/client/internal/XURuleEngineSession;" the
  class loader (instance of
  weblogic/utils/classloaders/GenericClassLoader) of the current
  class, ilog/rules/res/session/impl/IlrStatefulSessionBase, and
  the class loader (instance of
  weblogic/utils/classloaders/GenericClassLoader) for resolved
  class, com/ibm/rules/res/xu/client/internal/XUClient, have
  different Class objects for the type ssion(
  Lilog/rules/res/model/IlrPath;Ljava/lang/ClassLoader;
  Lcom/ibm/rules/engine/connector/DataConnectorFactory;
  Ljava/io/Serializable;Ljava/lang/String;)
  Lcom/ibm/rules/res/xu/client/internal/XURuleEngineSession; used
  in the signature
  at ilog.rules.res.session.impl.IlrStatefulSessionBase.<init>(
  IlrStatefulSessionBase.java:102)
  at ilog.rules.res.session.impl.pojo.IlrStatefulSessionPOJO.
  <init>(IlrStatefulSessionPOJO.java:45)
  at ilog.rules.res.session.impl.pojo.IlrStatelessSessionPOJO.
  createStatefulSession(IlrStatelessSessionPOJO.java:57)
  at ilog.rules.res.session.impl.IlrStatelessSessionBase.execute(
  IlrStatelessSessionBase.java:62)
  ...
  

Local fix

Problem summary

• JBoss classloader is requiring classes in specific location and
  the ejb3 jar is not properly packaged  for this.
  

Problem conclusion

• EJB3 jar packaging is modified to include missing classes
  

Temporary fix

• set "enable-global-access-to-classes" to false in the XU
  resource adapter
  

Comments

APAR Information

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

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

Modules/Macros

• 999
  

Fix information

• Fixed component name

  WDS FOR RULES

• Fixed component ID

  5725B6903

Applicable component levels

• R871 PSY

     UP