DO NOT REPLY [Bug 46164] New: Jasper Error (Boolean null is converted to false)

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=46164

           Summary: Jasper Error (Boolean null is converted to false)
           Product: Tomcat 6
           Version: 6.0.18
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: blocker
          Priority: P2
         Component: Jasper
        AssignedTo: dev@tomcat.apache.org
        ReportedBy: pieter.pareit@easypay.be


Created an attachment (id=22838)
 --> (https://issues.apache.org/bugzilla/attachment.cgi?id=22838)
error description

Error in Jasper for tomcat-6.0.18

Test environment:
Using: tomcat 6.0.18
Using: JSF 2.0 (error can be simulated with JSF)

------------------------------------------------------- JSF Managedbean
public class TestHandler {

private Boolean active = null;

public Boolean getActive(){ 
        return active;
}

Public void setActive(Boolean active){
        System.out.println(“My value is: “+ active);
        this.active = active;
}
}

------------------------------------------------------- JSF Custom Component

<e:yesNo value="#{testHandler.active}" id=”active”/>

------------------------------------------------------- RENDERED HTML

<select name="f:active" id="f:active">
        <option value="" selected="selected"></option>
        <option value="YES">Ja</option>
        <option value="NO">Nee</option>
</select>

----------------------------------- yesNo COMPONENT RENDERER

public void decode(FacesContext context, UIComponent component) {
        UIInput input = (UIInput) component;
input.setValue(null); //just as a test case!!! Explicit set the null value!!!! 
}


!!!!!!!!!!!!!!!!!!!!!!!!!!!! RESULT !!!!!!!!!!!!!!!!!!!!!!
Expected result: 
-       property active of the testhandler must be null
-       [console output] My value is: null
Actual result: 
-       property active is false
-       [console output] My value is: false

!!!!!!!!!!!!!!!!!!!!!!!!!! WORK AROUND !!!!!!!!!!!!!!!!!!!!
I copied the following jar files from tomcat-6.0.13 to tomcat-6.0.18 and it
works
el-api.jar
jasper.jar
jasper-el.jar
jasper-jdt.jar

!!!!!  Looks like tomcat-6.0.18 converts a Boolean null value to false !!!!!!


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DO NOT REPLY [Bug 46164] Jasper Error (Boolean null is converted to false)

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=46164


Mark Thomas <ma...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID




--- Comment #1 from Mark Thomas <ma...@apache.org>  2008-11-08 17:26:57 PST ---
This behaviour is as per the spec.  See the JSP-EL spec, section 1.18.5

The following option may disable this behaviour but I haven't tested it:
org.apache.el.parser.COERCE_TO_ZERO=false

Please use the users list if you require further assistance.


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