SUPPORT / SAMPLES & SAS NOTES
Problem Note 41186: An error and a null-pointer exception might occur when you invoke SAS® Web Report Studio
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You might receive the following browser error when you invoke SAS Web Report Studio:
This page cannot be displayed
If you see this error, check the application-server log for the following message:
java.lang.NullPointerException
at org.jgroups.blocks.PullPushAdapter.stop(PullPushAdapter.java:103)
at org.jgroups.blocks.ReplicatedTree.stop(ReplicatedTree.java:198)
at com.sas.svcs.cluster.SimpleCache.stop(SimpleCache.java:179)
This error is an indication that you might have encountered a thread-synchronization problem. This timing issue is rare and only occurs within a very narrow window. It is not specific to any Web application server. The problem occurs in code that is used for multicasting communication that stops a previously instantiated JGroups cache.
If the thread-synchronization problem occurs, the SAS Logon Manager and, subsequently, SAS Web Report Studio will not start.
Click the Hot Fix tab in this note to access the hot fix for this issue.
Operating System and Release Information
| Product Family | Product | System | Product Release | SAS Release | ||
| Reported | Fixed* | Reported | Fixed* | |||
| SAS System | SAS Web Report Studio | Microsoft Windows Server 2003 Datacenter Edition | 4.2 | 4.2_M2 | 9.2 TS2M2 | 9.2 TS2M2 |
| Microsoft Windows Server 2003 Enterprise Edition | 4.2 | 4.2_M2 | 9.2 TS2M2 | 9.2 TS2M2 | ||
| Microsoft Windows Server 2003 Standard Edition | 4.2 | 4.2_M2 | 9.2 TS2M2 | 9.2 TS2M2 | ||
| Microsoft Windows Server 2003 for x64 | 4.2 | 4.2_M2 | 9.2 TS2M2 | 9.2 TS2M2 | ||
| Microsoft Windows Server 2008 | 4.2 | 4.2_M2 | 9.2 TS2M2 | 9.2 TS2M2 | ||
| Microsoft Windows Server 2008 for x64 | 4.2 | 4.2_M2 | 9.2 TS2M2 | 9.2 TS2M2 | ||
| Microsoft Windows XP Professional | 4.2 | 4.2_M2 | 9.2 TS2M2 | 9.2 TS2M2 | ||
| 64-bit Enabled AIX | 4.2 | 4.2_M2 | 9.2 TS2M2 | 9.2 TS2M2 | ||
| 64-bit Enabled Solaris | 4.2 | 4.2_M2 | 9.2 TS2M2 | 9.2 TS2M2 | ||
| HP-UX IPF | 4.2 | 4.2_M2 | 9.2 TS2M2 | 9.2 TS2M2 | ||
| Linux for x64 | 4.2 | 4.2_M2 | 9.2 TS2M2 | 9.2 TS2M2 | ||
| Solaris for x64 | 4.2 | 4.2_M2 | 9.2 TS2M2 | 9.2 TS2M2 | ||