Fix (APAR): PK75378 Status: Fix Release: 6.1.0.21 Operating System: AIX,HP-UX,Linux,Solaris,Windows Supersedes Fixes: CMVC Defect: PK75378 Byte size of APAR: 31855 Date: 2009-02-04 Abstract: Application update fails for one node in a cluster due to a NullPointerException. Description/symptom of problem: PK75378 resolves the following problem: ERROR DESCRIPTION:? In WebSphere Application Server V6.1 on AIX 5.2 there was a Null Pointer Exception caused by failure to get an mbean. This causes StopDeployment to fail and it does not perform proper synchronization in this environment. StopDeployment runs on the nodeagent process so it will try to get AdminService for nodeagent. Since nodeagent is actually running at that time, AdminServiceFactory.getAdminService() will not return null. The following errors can be found in the systemout.log of nodeagent: [10/15/08 19:34:15:507 CDT] 000016b1 NodeSyncTask A ADMS0003I: The configuration synchronization completed successfully. [10/15/08 19:34:16:002 CDT] 000016b2 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl initialize FFDC0009I: FFDC opened incident stream file. [10/15/08 19:34:21:016 CAT] 000016b2 ServiceLogger I com.ibm.ws.ffdc.IncidentStreamImpl resetIncidentStream FFDC0010I: FFDC closed incident stream file /usr/WebSphere6.1/AppServer/profiles/prof1/logs/ffdc/nodea gent_000 [10/15/08 19:34:21:041 CDT] 000016b2 AppBinaryProc E Exception from run: java.lang.NullPointerException LOCAL FIX:? n/a PROBLEM SUMMARY:? USERS AFFECTED: All users of WebSphere Application Server PROBLEM DESCRIPTION: Application update fails for one node in a cluster due to a NullPointerException. RECOMMENDATION: None Application update fails for one node in a cluster due to a NullPointerException. During application update it will stop the application and it will try to query the Application MBean. If the Application MBean is not running during this call it will cause a NullPointerException. Nodeagent FFDC log showed: Exception = java.lang.NullPointerException Source = com.ibm.ws.management.application.sync.AppBinaryProcessor.run probeid = 1347 Stack Dump = java.lang.NullPointerException at com.ibm.ws.management.application.sync.StopDeploymentTask.stopDe ployment(StopDeploymentTask.java:150) at com.ibm.ws.management.application.sync.StopDeploymentTask.fullAp pUpdate(StopDeploymentTask.java:129) at com.ibm.ws.management.application.sync.StopDeploymentTask.perfor mTask(StopDeploymentTask.java:74) at com.ibm.ws.management.application.sync.AppBinaryProcessor$AppBin Thread.run(AppBinaryProcessor.java:896) at java.lang.Thread.run(Thread.java:801) PROBLEM CONCLUSION:? Code was changed to make sure queryNames does not return null by checking for null and returning an empty Set instead. The fix for this APAR is currently targeted for inclusion in fix packs 6.0.2.33, 6.1.0.23 and 7.0.0.3. Please refer to the recommended updates page for delivery information: http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980 Directions to apply fix: Fix applies to Editions: Release 6.0 _X_ Application Server (Express or BASE) _X_ Network Deployment (ND) Install Fix to: Method: _X_ Both NOTE: The user must: * Have Administrative rights in Windows, or be the Actual Root User in a UNIX environments. * Logged in with the same authority level when unpacking a fix, fix pack or refresh pack. * Be at V6.1.0.13 or newer of the Update Installer. Certain iFixes may require a newer version of the Update Installer and the Update Installer will inform you during the installation process if a newer version is required. This can be checked by reviewing the level of the Update Installer in file /updateinstaller/version.txt. The Update Installer can be downloaded from the following link: http://www.ibm.com/support/docview.wss?rs=180&uid=swg21205991 For detailed instructions to Extract the Update Installer see the following Technote: http://www.ibm.com/support/docview.wss?rs=180&uid=swg21205400 Note that there are two different methods for delivering iFixes, depending on the contents. The fix may be delivered either as a single file with a .pak extension (such as 6.1.0.11-WS-WAS-IFPK12345.pak) or a single file with a .zip extension (such as 6.1.0.11-WS-WAS-IFPK12345.zip) which then contains one or more files with a .pak extension. 1) If your iFix is delivered as a single file with a .pak extension, Copy the .pak file directly to the maintenance directory. If your iFix is delivered as a single file with a .zip extension, unzip the file into the maintenance directory. 2) Shutdown WebSphere Manually execute setupCmdLine.bat in Windows or . ./setupCmdLine.sh in Unix from the WebSphere instance that maintenance is being applied to. 3) Launch Update Installer and click the Next button on the Welcome page. 4) Enter the directory path of the installation location of the WebSphere product you want to update, and click the Next button. 5) Select the "Install maintenance package" operation and click the Next button. 6) Enter the directory path of your maintenance directory where you have the maintenance packages (.pak files) and click the Next button. 7) The Available Maintenance Package to Install page should list all maintenance packages (.pak files) that it finds in the directory path provided in the previous step. The Update Installer will select the correct maintenance packages based on your system configuration and will not allow an invalid combination to be installed. Please keep the Update Installer recommendations and click the Next button and continue with the installation of the maintenance package. 8) Please note that in the future, if a Feature Pack is installed or uninstalled, a different set of iFixes will be needed. Use the Update Installer again at that time, with the maintenance directory location where these maintenance packages are stored, to determine the required interim fixes for the new WebSphere and Feature Pack(s) combination. 9) The maintenance packages could have one of a set of names, and these names will help determine which maintenance package you need to install. The APAR name (PKxxxxx) should appear as part of the filename. Between the APAR number and the .pak extension there will be 0 to 2 characters added. The table below indicates the usage of each of the maintenance packages with respect to which Feature Packs, if any, are installed. |.pak File Names |No Feature Packs|EJB3 Only|WebServices Only| Both | |6.1.0.x-WS-WAS-IFPK12345 | X | X | X | X | |6.1.0.x-WS-WAS-IFPK12345C | X | | | | |6.1.0.x-WS-WAS-IFPK12345C Directions to remove fix: NOTE: * The user must have Administrative rights in Windows, or be the Actual Root User in a UNIX environments. * FIXES MUST BE REMOVED IN THE ORDER THEY WERE APPLIED * DO NOT REMOVE A FIX UNLESS ALL FIXES APPLIED AFTER IT HAVE FIRST BEEN REMOVED * YOU MAY REAPPLY ANY REMOVED FIX Example: If your system has fix1, fix2, and fix3 applied in that order and fix2 is to be removed, fix3 must be removed first, fix2 removed, and fix3 re-applied. 1) Shutdown WebSphere Manually execute setupCmdLine.bat in Windows or . ./setupCmdLine.sh in Unix from the WebSphere instance that uninstall is being run against. 2) Start Update Installer 3) Enter the installation location of the WebSphere product you want to remove the fix. 4) Select "Uninstall maintenance package" operation. 5) Enter the file name of the maintenance package to uninstall (PKxxxxx.pak). 6) UnInstall maintenance package. 7) Restart WebSphere Directions to re-apply fix: 1) Shutdown WebSphere. 2) Follow the Fix instructions to apply the fix. 3) Restart WebSphere. Additional Information: