PM75196: A MESSAGE THAT A JAX-RS RESOURCE DOES NOT IMPLEMENT ANY METHODS BOUND TO HTTP OPTIONS MIGHT APPEAR IN THE JVM LOG.

8.5.0.1: WebSphere Application Server V8.5 Fix Pack 1
8.5.0.2: WebSphere Application Server V8.5 Fix Pack 2

APAR status

• Closed as program error.

Error description

• When a JAX-RS resource is sent a request containing an HTTP
  OPTIONS method, an  informational message, "The system cannot
  find any method in the <resource_class>class that supports
  OPTIONS. Verify that a method exists" might appear numerous
  times.
  
  This message would be logged if the resource does not
  implement any subresource methods that are annotated with
  javax.ws.rs.OPTIONS.
  
  This does not signify an error, but is logged for
  informational purposes. When an HTTP request with an OPTIONS
  method is sent, even though the JAX-RS resource may not
  explicityl implement a method bound to OPTIONS, this is an
  acceptable situation.
  
  The JAX-RS specification says the following:
  
  "3.3.5 HEAD and OPTIONS
  
  HEAD and OPTIONS requests receive additional automated support.
  ...
  On receipt of an OPTIONS request an implementation MUST either:
  
  1. Call a method annotated with a request method designator
  for OPTIONS or, if none present,
  2. Generate an automatic response using themetadata provided
  by the JAX-RS annotations on the matching
  class and its methods."
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Users of IBM WebSphere Application Server   *
  *                  JAX-RS server-side applications.            *
  ****************************************************************
  * PROBLEM DESCRIPTION: Informational messages about            *
  *                      missing JAX-RS subresources             *
  *                      for HTTP OPTIONS might appear in        *
  *                      JVM logs.                               *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When a JAX-RS resource is sent a request containing an HTTP
  OPTIONS method, an  informational message, "The system cannot
  find any method in the <resource_class>class that supports
  OPTIONS. Verify that a method exists" might appear numerous
  times.
  This message would be logged if the resource does not
  implement any subresource methods that are annotated with
  javax.ws.rs.OPTIONS.
  The message does not signify an error, but is logged for
  informational purposes. When an HTTP request with an OPTIONS
  method is sent, even though the JAX-RS resource may not
  explicity implement a method bound to OPTIONS, this is an
  acceptable situation.
  The JAX-RS specification says the following:
  "3.3.5 HEAD and OPTIONS
  HEAD and OPTIONS requests receive additional automated support.
  ...
  On receipt of an OPTIONS request an implementation MUST either:
  1. Call a method annotated with a request method designator
  for OPTIONS or, if none present,
  2. Generate an automatic response using themetadata provided
  by the JAX-RS annotations on the matching
  class and its methods."
  In other words, a JAX-RS client can send an OPTIONS request to
  a resource containing no subresources bound to OPTIONS, and
  the JAX-RS engine should be able to process the request.
  

Problem conclusion

• The JAX-RS engine was changed to output the message under
  debug mode only--it should no longer appear in the JVM log but
  in trace.
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.5.0.1.  Please refer to the Recommended Updates
  page for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

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 APP S

• Fixed component ID

  5724J0800

Applicable component levels

• R850 PSY

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