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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 4359] New: - BodyTag : doInitBody() shouldn't be called when the doStartTag() method returns EVAL_BODY_INCLUDE
Date Tue, 23 Oct 2001 09:09:43 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=4359

BodyTag : doInitBody() shouldn't be called when the doStartTag() method returns EVAL_BODY_INCLUDE

           Summary: BodyTag : doInitBody() shouldn't be called when the
                    doStartTag() method returns EVAL_BODY_INCLUDE
           Product: Tomcat 4
           Version: 4.0.1 Final
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: Jasper
        AssignedTo: tomcat-dev@jakarta.apache.org
        ReportedBy: simon_g_brown@yahoo.com


According to the JSP 1.2 spec (10.2.2 - Methods section), the doInitBody() 
method is only called when doStartTag returns EVAL_BODY_BUFFERED. In the 
generated code, the call to doInitBody() is called outside of the block that 
pushes a new BodyContent onto the stack and subsequently passes this to the tag 
handler with the setBodyContent method.

Example of the generated code is as follows.

                            if (_jspx_eval_xxx_filter_0 != 
javax.servlet.jsp.tagext.Tag.EVAL_BODY_INCLUDE) {
                              out = pageContext.pushBody();
                              _jspx_th_xxx_filter_0.setBodyContent
((javax.servlet.jsp.tagext.BodyContent) out);
                          }
                          _jspx_th_xxx_filter_0.doInitBody();

The doInitBody() call needs to put placed wihtin the if block so that it is 
only called when the body content is set on the tag handler.

Thanks
Simon

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