It's not the "why is formName null?" that I'm worried about. In this case, it's supposed to be null.
What I want to know is this: Is a NullPointerException supposed to be thrown if the argument "name" in session.getAttribute(name) is NULL? If such an exception IS supposed to be thrown, was this a change put into Tomcat 5.5.x that wasn't in 5.0.x? -----Original Message----- From: Martin Gainty [mailto:[EMAIL PROTECTED] Sent: Thursday, June 12, 2008 11:24 AM To: Leffingwell, Jonathan R CTR FRCSE, JAX 7.2.2 Subject: RE: getAttribute(null)? At that point you're talking to the Struts 1.x Base class ActionConfig getParameter method.. http://struts.apache.org/1.2.7/api/org/apache/struts/config/ActionConfig .html#getParameter() where JavaDoc for this parameter is defined as public java.lang.String getParameter() Return general purpose configuration parameter that can be used to pass extra information to the Action instance selected by this Action. Struts does not itself use this value in any way. As of Struts 2.0.11 http://struts.apache.org/2.0.11.1/struts2-core/apidocs/org/apache/struts 2/dispatcher/mapper/ActionMapping.html the getParameter() method has been refined e.g. /** @return The extra parameters */ public java.util.Map getParams() { return params; } relevant doc on java.util.Map http://publib.boulder.ibm.com/infocenter/wsadhelp/v5r1m2/index.jsp?topic =/com.sun.api.doc/java/util/Map.html //code look something like //assume the key for the form attribute will be called Form1 String formKey=new String("Form1"); //And now to acquire the value for the Form1 key String value =mapping.getParams().get(formKey); Let me know if does'nt conform to your understanding.. HTH Martin ______________________________________________ Disclaimer and confidentiality note Everything in this e-mail and any attachments relates to the official business of Sender. This transmission is of a confidential nature and Sender does not endorse distribution to any party other than intended recipient. Sender does not necessarily endorse content contained within this transmission. > Subject: getAttribute(null)? > Date: Thu, 12 Jun 2008 10:44:06 -0400 > From: [EMAIL PROTECTED] > To: users@tomcat.apache.org > > I have the following code that worked in Tomcat 5.0, but doesn't work > in Tomcat 5.5.26: > > String formName = mapping.getAttribute(); // mapping is a variable of > type ActionMapping. In this scenario, formName is null. > > if (null != session.getAttribute(formName)) { > session.removeAttribute(formName); > } > > > formName is null. In Tomcat 5.0.x, no exception was thrown and > processing continued (as if passing a null argument to getAttribute > simply returned NULL). In Tomcat 5.5.26, a ServletException is thrown > (with a NullPointerException). > > I know how to code a work-around (and have done so), but is this > considered a bug in Tomcat? > ________________________________ Enjoy 5 GB of free, password-protected online storage. Get Windows Live SkyDrive. <http://www.windowslive.com/skydrive/overview.html?ocid=TXT_TAGLM_WL_Ref resh_skydrive_062008> --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
