PQ56048: TAG INTERSPECTION HELPER IS CAUSING COMPILE TIME FOR JSPS TO TAKE TOO LONG. JSPRUNTIMELIBRARY CALLED TOO OFTEN

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 4.0 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 number PQ56048
Reported component name WEBSPHERE AE AI
Reported component ID 5630A2200
Reported release 400
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Submitted date 2001-12-18
Closed date 2001-12-18
Last modified date 2001-12-21

APAR is sysrouted FROM one or more of the following:
PQ51741

APAR is sysrouted TO one or more of the following:

Modules/Macros

Fix information
Fixed component name WEBSPHERE AE AI
Fixed component ID 5630A2200

Applicable component levels
R400 PSY    UP


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > General
Operating system(s):
Software version: 400
Software edition:
Reference #: PQ56048
IBM Group: Software Group
Modified date: Dec 21, 2001