Microsoft KB Archive/819778

= FIX: Deadlock occurs when two threads use the java.util.TimeZone method and the java.util.Calendar method at the same time =

Article ID: 819778

Article Last Modified on 10/18/2005

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APPLIES TO


 * Microsoft Visual Studio .NET 2003 Enterprise Architect
 * Microsoft Visual Studio .NET 2003 Enterprise Developer
 * Microsoft Visual Studio .NET 2003 Academic Edition

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SYMPTOMS
If two different threads access the java.util.Calendar.getInstance method and the java.util.TimeZone.inDaylightTime method at the same time, the threads may deadlock (hang).

The Calendar.getInstance method locks the Calendar class first and then locks the default TimeZone class. The TimeZone.inDaylightTime method locks the TimeZone class first and then locks the Calendar class.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question. The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version            Size    File name --  17-May-2003  01:24                  4,260,352  Jsr1.1-kb819777-x86.msp 17-May-2003 01:24                  2,942,976  Jsr1.1-kb819777-x86u.msp 17-May-2003 01:39  1.1.4322.904    3,739,648  Vjslib.dll 17-May-2003 01:39  1.1.4322.904      266,240  Vjsnativ.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbbug kbfix kbqfe KB819778

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