PI63746: StringIndexOutOfBoundsException starting an app with a servlet annotated with @WebServlet("") or with empty servlet mapping

9.0.0.1: WebSphere Application Server traditional V9.0 Fix Pack 1
9.0.0.2: WebSphere Application Server traditional V9.0 Fix Pack 2
9.0.0.3: WebSphere Application Server traditional V9.0 Fix Pack 3
9.0.0.4: WebSphere Application Server traditional V9.0 Fix Pack 4
9.0.0.5: WebSphere Application Server traditional V9.0 Fix Pack 5
9.0.0.6: WebSphere Application Server traditional V9.0 Fix Pack 6
9.0.0.7: WebSphere Application Server traditional V9.0 Fix Pack 7
9.0.0.8: WebSphere Application Server traditional V9.0 Fix Pack 8
9.0.0.9: WebSphere Application Server traditional V9.0 Fix Pack 9
9.0.0.10: WebSphere Application Server traditional V9.0 Fix Pack 10
9.0.0.11: WebSphere Application Server traditional V9.0 Fix Pack 11
9.0.5.0: WebSphere Application Server traditional Version 9.0.5 Refresh Pack
9.0.5.1: WebSphere Application Server traditional Version 9.0.5 Fix Pack 1
9.0.5.2: WebSphere Application Server traditional Version 9.0.5 Fix Pack 2
9.0.5.3: WebSphere Application Server traditional Version 9.0.5 Fix Pack 3
9.0.5.4: WebSphere Application Server traditional Version 9.0.5 Fix Pack 4
9.0.5.5: WebSphere Application Server traditional Version 9.0.5 Fix Pack 5
WebSphere Application Server traditional 9.0.5.6
9.0.5.7: WebSphere Application Server traditional Version 9.0.5 Fix Pack 7
9.0.5.8: WebSphere Application Server traditional Version 9.0.5.8
9.0.5.9: WebSphere Application Server traditional Version 9.0.5.9
9.0.5.10: WebSphere Application Server traditional Version 9.0.5.10
9.0.5.11: WebSphere Application Server traditional Version 9.0.5.11

APAR status

• Closed as program error.

Error description

• java.lang.StringIndexOutOfBoundsException
  at java.lang.String.charAt(String.java:639)
          at
  com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.j
  ava:1148)
          at
  com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.j
  ava:1122)
          at
  com.ibm.ws.webcontainer.webapp.WebApp.jspAwareCreateServletWrapp
  er(WebApp.java:935)
          at
  com.ibm.ws.webcontainer.webapp.WebApp.createServletWrappers(WebA
  pp.java:879)
          at
  com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish
  (WebApp.java:587)
          at
  com.ibm.ws.webcontainer.webapp.WebAppImpl.initialize(WebAppImpl.
  java:428)
          at
  com.ibm.ws.webcontainer.webapp.WebGroupImpl.addWebApplication(We
  bGroupImpl.java:88)
          at
  com.ibm.ws.webcontainer.VirtualHostImpl.addWebApplication(Virtua
  lHostImpl.java:170)
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: Starting an application with the        *
  *                      servlet annotated with                  *
  *                      @WebServlet("") or with empty mapping   *
  *                      in web deployment descriptor causes     *
  *                      StringIndexOutOfBoundsException.        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Any web application which has a servlet annotated with
  @WebServlet("") or has empty servlet mapping in the web
  deployment descriptor will cause a
  StringIndexOutOfBoundsException to be thrown upon the start of
  the application.
  

Problem conclusion

• This case was added to the Java Servlet Specification 3.0 -
  that is, the empty string ("") is a special URL pattern that
  exactly maps to the application's context root.
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 9.0.0.1.  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:

Fix information

• Fixed component name

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels

• R900 PSY

     UP