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The exception is not handled

Posted on 2002-06-04
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Last Modified: 2010-03-31
Why the following code get the error: "The exception java.lang.Exception is not handled."?

public void performTask(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)         throws ServletException
{
     super.performTask(request, response);
    String cmdName = null;
    Command cmd = null;
    CommandMapObject mapObj = null;
     Result result = new Result();
     try{
          mapObj = this.getCmdMap().getCommandMapObject(this.getCmdName(request));
                  if (this.getCmdName(request).equalsIgnoreCase("login")){
                       this.login(request);
                       result.setTargetName("success");        
                  }else {
                       this.logout(request);
                          result.setTargetName("success");
                  }

                  forward(request, response, mapObj, result);
       
         } catch (SignOnException se) {
              result.setObject("errorMsg", se.getMessage());
              request = setRequestParameters(request, mapObj, result);
              result.setTargetName("fail");
              forward(request, response, mapObj, result);
         } catch (Exception e) {
                  throw new ServletException(e.getMessage());
         }
}
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Question by:DevelHelper
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6 Comments
 
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Accepted Solution

by:
pellep earned 200 total points
ID: 7054203
does the performTask() function in the superclass throw 'Exception'. If so, you need to catch it when you call super.performTask(request, response);
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Author Comment

by:DevelHelper
ID: 7054275
public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException
    {
        performTask(request, response);
    }
0
 
LVL 4

Expert Comment

by:pellep
ID: 7054294
try

public void performTask(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse
response)         throws ServletException
{

   
   String cmdName = null;
   Command cmd = null;
   CommandMapObject mapObj = null;
    Result result = new Result();
    try{
         super.performTask(request, response);
         mapObj = this.getCmdMap().getCommandMapObject(this.getCmdName(request));
                 if (this.getCmdName(request).equalsIgnoreCase("login")){
                      this.login(request);
                      result.setTargetName("success");        
                 }else {
                      this.logout(request);
                         result.setTargetName("success");
                 }

                 forward(request, response, mapObj, result);
       
        } catch (SignOnException se) {
             result.setObject("errorMsg", se.getMessage());
             request = setRequestParameters(request, mapObj, result);
             result.setTargetName("fail");
             forward(request, response, mapObj, result);
        } catch (Exception e) {
                 throw new ServletException(e.getMessage());
        }
}
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Author Comment

by:DevelHelper
ID: 7054318
I tried your code, but got the same compile error.
0
 
LVL 4

Expert Comment

by:pellep
ID: 7055714
doesn't the compile error include any indication as to where the error occured (filename, line-number or the likes)?
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LVL 4

Expert Comment

by:pellep
ID: 7055723
it could also be the call to forward(request, response, mapObj, result);
within the first catch section.
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