PH66642: JSP COMPILATION ERROR: THE METHOD _JSP_CLEANUPTAG(...) IS UNDEFINED

APAR status

• Closed as program error.

Error description

• Regression caused by PH49514 (JSP TAGLIB OBJECTS NOT CLEANED
  UP PROPERLY). Tags Used Within Simple Tags Files Cause
  Compilation Failures When Thread Pool / Page Pool is enabled.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Users of Java Server Pages (JSP) on         *
  *                  WebSphere Application Server and WebSphere  *
  *                  Liberty                                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: JSPs fail to compile due to missing     *
  *                      _jsp_cleanUpTag method when JSP Option  *
  *                      usePageTagPool or useThreadTagPool is   *
  *                      enabled                                 *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The error in question is triggered by two primary conditions:
  1) The usePageTagPool or useThreadTagPool JSP option must be
  enabled.
  2) The application must utilize tags within tag files.
  When a tag file employs a tag within it, such as the "c:out"
  JSTL tag in a file like
  WEB-INF/tags/test.tag, the Java code generation process for
  the tag file may produce an incomplete Java file. This
  incomplete file cannot be compiled, leading to the following
  error:
  "The method jsp.cleanUpTag() is undefined for the type ..."
  This issue specifically impacts tags that use resource
  injection (most tags).
  This was a regression caused by PH49514 (JSP TAGLIB OBJECTS
  NOT CLEANED UP PROPERLY).
  Additionally, this APAR also fixed
  "java.lang.NullPointerException: Cannot invoke
  "com.ibm.wsspi.webcontainer.annotation.AnnotationHelper.inject(j
  ava.lang.Class)" because "this._jspx_iaHelper" is null".
  

Problem conclusion

• The code was been updated to generate this missing method.
  This fix is targeted for Traditional WebSphere 9.0.5.25 and
  Liberty 25.0.0.7.
  
  The github link can be found here:
  https://github.com/OpenLiberty/open-liberty/issues/31609
  
  For more information, see 'Recommended Updates for WebSphere
  Application Server':
  https://www.ibm.com/support/pages/node/715553
  

Temporary fix

Comments

APAR Information

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

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

Fix information

• Fixed component name

  WEBSPHERE APP S

• Fixed component ID

  5724J0800

Applicable component levels