PQ75451: WEBSPHERE 4.0 AES SERVLET CLIENT WILL NOT WLM WITH WAS 5.0 CLUSTER. | |||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description When a 4.0.x AEs servlet client tries to talk with WAS 5.0 cluster this fails to work. The client can talk to a single server but does not WLM to a cluster.Local fix Problem summary **************************************************************** * USERS AFFECTED: WebSphere Application Server users of WLM, * * or Workload Management. * **************************************************************** * PROBLEM DESCRIPTION: When using a client on AEs, the * * client will not WLM to a WebSphere * * Application Server AE 4.0 * * or WebSphere Application Server 5.0 * * cluster. * **************************************************************** * RECOMMENDATION: Apply fix PQ75451 to the AEs client and * * server. * **************************************************************** A 4.0 AEs client bootstrapping to the WebSphere Application Server 4.0 AE Admin Server or a WebSphere Application Server 5.0 node agent or "foreign" cluster member. Fails with NPE ( NullPointerException ). In this scenario the WLM code also gets the request to route the request before any cluster information has been resolved. Thus, it attempts to resolve to the AdminServer to get the information directly. The AdminServer does not exist and messages WWLM0028 and WWLM0020 are logged. An internal variable is not set in this path (and should not be) which shortly thereafter gets dereferenced (thus the problem) causing the NullPointerException in the EJSRepositoryClient.Problem conclusion A check was added to verify if a valid ServerGroup was returned from a method call. If it was not, a new empty ServerGroup was created and returned. Otherwise, a NullPointerException was returned, and that was invalid.Temporary fix Comments
APAR is sysrouted FROM one or more of the following: APAR is sysrouted TO one or more of the following: Modules/Macros
SRLS
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Document Information |
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server > General
Operating system(s):
Software version: 400
Software edition:
Reference #: PQ75451
IBM Group: Software Group
Modified date: Jun 27, 2003
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