PH42911: ISSUE IN THE PMI PROMETHEUSRESOURCE CLASS, I

APAR status

• Closed as program error.

Error description

• Issue in the PMI PrometheusResource class, in which it does not
  appear that proper package imports were added to its OSGi bundle
  when it was added to the product. That class appears to have
  been added to 9.0.5.7, so the customer's observation that this
  scenario worked on 9.0.0.10 but not 9.0.5.9 would make sense as
  well.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: DUPLICATE PROMETHEUS METRICS EAR CODE   *
  *                      IN                                      *
  *                      RUNTIME JAR                             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The runtime jar contains an unnecessary copy of the
  com.ibm.ws.pmi.prometheus* classes (that are used to build the
  installable prometheus application metrics.ear). In cases where
  customers may use swagger, swagger tries to load and inspect
  all
  classes it can see in the runtime jar with some set of JAX-RS
  annotations, so it loads the PrometheusResource class since it
  has a @path annotation. However, jax-rs package imports were
  never
  added to the runtime bundle, since the
  com.ibm.ws.pmi.prometheus*
  classes are never actually used. This causes a
  java.lang.NoClassDefFoundError:
  javax.ws.rs.core.StreamingOutput.
  

Problem conclusion

• Problem conclusion
  Since the com.ibm.ws.pmi.prometheus* classes are unnecessary in
  the runtime jar, they will be removed from the jar in this fix.
  
  The fix for this APAR is targeted for inclusion in fix pack
  9.0.5.12 and 8.5.5.22. For more information, see 'Recommended
  Updates 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

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels