APAR status
Closed as program error.
Error description
For either BLOCKADDR or BLOCKUSER in a CHLAUTH rule you can provide a list of addresses or users. . For each of these fields the type is listed in the MQ Knowledge Center as: . AddrList (MQCFSL) A list of up to 100 IP address patterns which are banned from accessing this queue manager on any channel (parameter identifier: MQCACH_CONNECTION_NAME_LIST). . UserList (MQCFSL) A list of up to 100 user IDs which are banned from use of this channel or set of channels (parameter identifier: MQCACH_MCA_USER_ID_LIST). . It was discovered that, if the command server's response from the MQCMD_INQUIRE_CHLAUTH_RECS command contained multiple IP addresses or user IDs, the PCF message conformed to that listed in the MQ Knowledge Center. That is, the field type was MQCFSL. However, if the response contained a single IP address or a single user ID, the field type was MQCFST. . In MQ Java, when you inquire the PCF message fields MQCACH_CONNECTION_NAME_LIST and MQCACH_MCA_USER_ID_LIST you have to use the getStringParameterValue method when there is only 1 user or address and the getStringListParameterValue method when there are multiple addresses or users. . The exception triggered when using the getStringListParameterValue when only one address or user is blocked is: . Exception: java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.String .
Local fix
Problem summary
**************************************************************** USERS AFFECTED: This affects users of PCF applications, which query channel authentication (CHLAUTH) records of type BLOCKUSER or BLOCKADDR. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: When responding to an inquire chlauth request (MQCMD_INQUIRE_CHLAUTH_RECS) for BLOCKUSER or BLOCKADDR records, the MQ queue manager's command server incorrectly returned the MQCACH_MCA_USER_ID_LIST and MQCACH_CONNECTION_NAME_LIST fields as string type (MQCFST) instead of string list (MQCFSL) if there was only one item the list.
Problem conclusion
The MQ queue manager's command server logic has been updated to always return MQCACH_CONNECTION_NAME_LIST and MQCACH_MCA_USER_ID_LIST as a string list type (MQCFSL) in its response to the MQCMD_INQUIRE_CHLAUTH_RECS command. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v8.0 8.0.0.8 v9.0 CD 9.0.4 v9.0 LTS 9.0.0.3 The latest available maintenance can be obtained from 'WebSphere MQ Recommended Fixes' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037 If the maintenance level is not yet available information on its planned availability can be found in 'WebSphere MQ Planned Maintenance Release Dates' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309 ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IT18341
Reported component name
WMQ BASE MULTIP
Reported component ID
5724H7251
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-12-09
Closed date
2017-08-14
Last modified date
2017-08-14
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
WMQ BASE MULTIP
Fixed component ID
5724H7251
Applicable component levels
R800 PSY
UP
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Document Information
Modified date:
14 August 2017