PQ51741: TAG INTERSPECTION HELPER IS CAUSING COMPILE TIME FOR JSPS TO TAKE TOO LONG. JSPRUNTIMELIBRARY CALLED TOO OFTEN


APAR

APAR status
Closed as program error.

Error description
Customer has > 100 custom tags on each JSP, and the compile time
is taking too long.  He believes that the problem is in the
JSPRuntimeLibrary, and the fact that it gets called for every
parameter of every tag.
Local fix
Problem summary
****************************************************************
* USERS AFFECTED: WebSphere Application Server 3.5.4 using     *
*                 jsp's containing useBean or custom tags.     *
*                 Significant performance improvement          *
*                 when running multiple tags since the         *
*                 fix caches the tags instead of making        *
*                 introspection calls each time a tag          *
*                 is used.                                     *
****************************************************************
* PROBLEM DESCRIPTION: Performance problem when using custom   *
*                      tags or useBean tags.  WebSphere was    *
*                      making introspection calls for each     *
*                      jsp tag it encountered.                 *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
Request for performance improvements involving jsp custom tags.
Problem conclusion
Created a caching object to keep track of which tags have
been called and what type of propery is being used.
This eliminates multiple introspection calls for the
same tag thus improving performance.
Temporary fix
/wasdoc0/apars/pq51741/354/PQ51741.jar
Comments
APAR information
APAR numberPQ51741
Reported component nameWAS ADVANCED AI
Reported component ID5648C8400
Reported release350
StatusCLOSED PER
PENoPE
HIPERNoHIPER
Submitted date2001-08-22
Closed date2001-09-05
Last modified date2001-12-18

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:APAR is sysrouted FROM one or more of the following:

PQ56048 PQ56054

Modules/Macros

Fix information
Fixed component nameWAS ADVANCED AI
Fixed component ID5648C8400
APAR is sysrouted TO one or more of the following:PQ56048, PQ56054Modules/Macros

Applicable component levels
R350 PSYUP











Document Information

Product categories: Software, Application Servers, Distributed Application & Web Servers, WebSphere Application Server, General
Software version: 350
Reference #: PQ51741
IBM Group: Software Group
Modified date: 2001-12-18