JSTL confused by overloading accessor methods

[Travis McCauley]

Hello,

I've just spent about eight hours trying to figure out a bug in my web-app and it seems to have been caused by overloading a set method. This occurred after I all at once added a new attribute and three accessor methods to one of my java classes. When I referred to the attributes in <c:xxx> tags I got errors that the value 'attributeName' was not found in an object of class.... It's the same error you get from referring to an attribute that actually doesn't exist.

The class I added these new attributes to is an abstract superclass for all the java beans in my app. Here's what I added:

private Vector analyticalNotes = null;

public void setAnalyticalNotes(Vector analyticalNotes)
{ this.analyticalNotes = analyticalNotes; }

public Vector getAnalyticalNotes()
{ return analyticalNotes; }

public void setAnalyticalNotes( String sql )
{ do some jdbc stuff then setAnalyticalNotes with a new Vector }


Here is the JSTL code that was causing the error. The object was in the request and I was able to access the analyticalNotes attribute through jsp scripting.

<c:out value="${ requestScope.termTestBean.analyticalNotes }" /> <br />


I had to change the number of parameters in the signature of the overloading method to stop the error. So here's what I now have and everything is working now:

public void setAnalyticalNotes( String sql, Object nullObjectNeverUsedInMethod )


I tried actually changing String to many other things but in the end I had to add a new parameter. I can get by without a solution for this but it seems a little weird.

I'm running Tomcat 4.1.12 on Java 1.3 on Mac OS X. I get the same error with the JSTL 1.0.2 release AND with the nightly build. Any ideas what's up with this?

Sincerely,

Travis McCauley
Tibetan and Himalayan Digital Library
University of Virginia


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