PI37304: INCORRECT JSP TRANSLATION FOR THE EXPRESSION

8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• The JSP engine incorrectly translates the following expression:
  
  <% for (int i=0;i<10;i++) {%>
  <%= i+1+"" %>
  <% } %>
  
  The expected result is 1 2 3 4 5 6 7 8 9 10, but the returned
  result is 01 11 21 31 41 51 61 71 81 91.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM WebSphere Application Server Full       *
  *                  Profile versions 7.0, 8.0 and 8.5.5 and     *
  *                  Liberty Profile version 8.5.5 users of      *
  *                  JavaServer Pages (JSP).                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: All the elements being operated with    *
  *                      the addition symbol (+) in a JSP        *
  *                      expression containing at least one      *
  *                      string literal will be concatenated.    *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  If a user has a JSP expression with at least one string in it,
  all the other elements in that same JSP expression will be
  concatenated. This means that if in that expression there was
  a number addition, these numbers will be concatenated and not
  added as expected.
  For example:
  <% for (int i=0;i<10;i++) {%>
  <%= i+1+"" %>
  <% } %>
  Will produce: 01 11 21 31 41 51 61 71 81 91
  The expected result is: 1 2 3 4 5 6 7 8 9 10
  

Problem conclusion

• The JSP container was modified to add the numbers accordingly
  when in a JSP expression with at least one string. To enable
  this fix, the following JSP attribute needs to be set:
  
  allowPrecedenceInJspExpressionsWithConstantString: true /
  false (default)
  
  If using the JSP Batch Compiler the following parameter needs
  to be specified:
  
  -allowPrecedenceInJspExpressionsWithConstantString true /
  false (default)
  
  The fix for this APAR is currently targeted for inclusion in
  fix packs 8.0.0.11 and 8.5.5.6.  Please refer to the
  Recommended Updates page for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

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:

  PI39430 PI39431

Fix information

• Fixed component name

  WEBSPHERE APP S

• Fixed component ID

  5724J0800

Applicable component levels

• R61A PSY

     UP

• R61H PSY

     UP

• R61I PSY

     UP

• R61P PSY

     UP

• R61S PSY

     UP

• R61W PSY

     UP

• R61Z PSY

     UP

• R700 PSY

     UP

• R800 PSY

     UP

• R850 PSY

     UP