IBM Support

PM41056: A NUMBERFORMATEXCEPTION IS THROWN FROM THE EL CODE.

Fixes are available

7.0.0.21: WebSphere Application Server V7.0 Fix Pack 21
8.0.0.2: WebSphere Application Server V8.0 Fix Pack 2
8.0.0.3: WebSphere Application Server V8.0 Fix Pack 3
7.0.0.23: WebSphere Application Server V7.0 Fix Pack 23
8.0.0.4: WebSphere Application Server V8.0 Fix Pack 4
7.0.0.25: WebSphere Application Server V7.0 Fix Pack 25
8.0.0.5: WebSphere Application Server V8.0 Fix Pack 5
7.0.0.27: WebSphere Application Server V7.0 Fix Pack 27
8.0.0.6: WebSphere Application Server V8.0 Fix Pack 6
7.0.0.29: WebSphere Application Server V7.0 Fix Pack 29
8.0.0.7: WebSphere Application Server V8.0 Fix Pack 7
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
7.0.0.27: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.21: Java SDK 1.6 SR9 FP2 Cumulative Fix for WebSphere
7.0.0.23: Java SDK 1.6 SR10 FP1 Cumulative Fix for WebSphere
7.0.0.25: Java SDK 1.6 SR11 Cumulative Fix for WebSphere Application Server
7.0.0.27: Java SDK 1.6 SR12 Cumulative Fix for WebSphere Application Server
7.0.0.29: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • A NumberFormatException thrown from Expression Language (EL)
    code. The following is the stack generated with the Exception.
    
    com.ibm.ws.webcontainer.webapp.WebApp logServletError SRVE0293E:
    [Servlet Error]-[/test.jspx]:
    java.lang.NumberFormatException: For input string: ""
    at java.lang.Throwable.<init>(Throwable.java:67)
    at
    java.lang.NumberFormatException.forInputString(NumberFormatExcep
    tion.java:59)
    at java.lang.Long.parseLong(Long.java:442)
    at java.lang.Long.<init>(Long.java:689)
    at
    org.apache.el.lang.ELArithmetic$LongDelegate.coerce(ELArithmetic
    .java:187)
    at
    org.apache.el.lang.ELArithmetic.coerce(ELArithmetic.java:355)
    at org.apache.el.lang.ELArithmetic.add(ELArithmetic.java:236)
    at org.apache.el.parser.AstPlus.getValue(AstPlus.java:24)
    at
    org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.j
    ava:263)
    at
    org.apache.jasper.el.JspValueExpression.getValue(JspValueExpress
    ion.java:100)
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server Version    *
    *                  7.0 and 8.0 users of the Expression         *
    *                  Language (EL).                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: A NumberFormatException is thrown       *
    *                      when a numeric value is added to an     *
    *                      EL expression with a value of empty     *
    *                      string.                                 *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    An example of the code which causes the issue is:
    <c:set var="emptyVar" value="" />
    <c:set var="test" value="${emptyVar + 1}" />
    The value of emptyVar is an empty String, which results in the
    object to be coerced to a String object. When the numeric
    value is added in the expression, a
    java.lang.NumberFormatException will be thrown.
    

Problem conclusion

  • The EL code was modified to coerce a null or empty string
    value to a zero (Long) instead of a String object.
    
    The fix for this APAR is currently targeted for inclusion in
    fix packs 7.0.0.21 and 8.0.0.2.  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 number

    PM41056

  • Reported component name

    WEBSPHERE APP S

  • Reported component ID

    5724J0800

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-06-08

  • Closed date

    2011-07-22

  • Last modified date

    2011-07-22

  • 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

  • R700 PSY

       UP

  • R800 PSY

       UP



Document information

More support for: WebSphere Application Server
General

Software version: 7.0

Reference #: PM41056

Modified date: 22 July 2011