Type casting problem in the JSP

Hi,
I am type casting an Object variable to a interface Variable. I am not getting any error if i have the same code in the servlet but i am getting ClassCast Exception if i have the same code in the Scriplets part of the JSP.
The code is as follows
String strKey = " SomeString";
Context context = new InitialContext();
java.lang.Object obj = null;
     obj = context.lookup(strKey);
     ContentBroker objCB = null;
     objCB = (ContentBroker)obj; // Error is happening here
ContentBroker is an inteface.
I have included the jar files of ContentBroker in the classpath.
Can anyone please tell me how to eliminate this error.?
thanks in advance,
Saravanan

In that case it's a classloader issue.
Since the object is bound in the context, I assume that you have made the class available to your server, and you have the class in WEB-INF/classes or in a jar inside WEB-INF/lib.
Since they're being loaded by two different classloaders, the classes are seen as different by the JVM, thus the ClassCastException.
Try removing the class from the web-app and let us know what happens.
BTW. Which servlet container are you using?

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Problem with the jsp printing

Can anyone help me please with jsp i have the following problem can you help me.
This is my console printing:
null16-08-2006 REPLY TIME: 14:34:32
REPLY : Hinknff
null16-08-2006 REPLY TIME: 14:36:34
REPLY : Hu jjdfgf
null16-08-2006 REPLY TIME: 14:39:57
REPLY : ffffffffffffffffff
but this is my webpriniting:
null16-08-2006 REPLY TIME: 14:34:32 REPLY : Hinknff null16-08-2006 REPLY TIME: 14:36:34 REPLY : Hu jjdfgf null16-08-2006 REPLY TIME: 14:39:57 REPLY : ffffffffffffffffff null16-08-2006 REPLY TIME: 14:44:58 REPLY : nnnnngf REPLY DATE:16-08-2006 REPLY TIME: 15:45:18 REPLY : Replughjfgjgf REPLY DATE:16-08-2006 REPLY TIME: 15:47:39 REPLY : Rn,kgdfg REPLY DATE:16-08-2006 REPLY TIME: 15:49:48 REPLY : Rngm,ng,df
that is i am not getting it in web as i get in console can you please help me how can i do that.
below is the partial code for printing in which i have used vector,strings only.
String qu = nn2.elementAt(j)+"";
String re = nn3.elementAt(j)+"";
String b= qu;
String b1 = re
System.out.println(b1);
String redt1 = nn4.elementAt(j)+"";
if(redt1.equals("No Reply")){
redt.append(redt1);
retime.append(redt1);
else
String redtt=redt1.substring(8,10);
          String remonth=redt1.substring(5,7);
          String reyear=redt1.substring(0,4);
          String rehh=redt1.substring(11,13);
          String remm=redt1.substring(14,16);
          String ress=redt1.substring(17,19);
redt.append(redtt+"-"+remonth+"-"+reyear);
retime.append(rehh+":"+remm+":"+ress);
} %>
<br>
<table>
<tr">
<td>
<b>Query Posted Date</b>
<%out.println(qudt);%>
<b>Query Posted Time :</b>
<%out.println(qutime);%>
<br>
<b style="font-family:verdana;font-size:80%;color:green">Query :</b>
<%out.println(b);
%>
</td>
</tr>
</table>
<br>
<table>
<tr bgcolor="rgb(174,174,250)">
<td>
<b>Last Reply Posted Date</b>
<%out.println(redt);%>
<b>Last Reply Posted Time :</b>
<%out.println(retime);%>
<br>
<b style="font-family:comicscans;font-size:80%;color:Red">Reply :</b>
<%
out.println(b1);
int qudtsize = qudt.length();
qudt.delete(0,qudtsize);
int qutimesize = qutime.length();
qutime.delete(0,qutimesize);
int redtsize = redt.length();
redt.delete(0,redtsize);
int retimesize = retime.length();
retime.delete(0,retimesize);
%>
<br>
</td>
</tr>
</table>
<br>
<% }
connection.close();
}catch(SQLException e)
e.printStackTrace();
%>
<input type="submit" value="Back" onClick="calljsp1()"/>
</form>
</body>
</html>

Hi.
Even i am getting the similar exception. The JSP report works fine on Oracle 9iDS. But throws following exception in Oracle 9iAS. I have already tried recompiling, etc but to no avail.
Any help in this regard is highly appreciated.
javax.servlet.jsp.JspException: rwlib-1: REP-1247: Report contains uncompiled PL/SQL.
javax.servlet.jsp.JspException: rwlib-1: REP-1247: Report contains uncompiled PL/SQL.
at oracle.reports.jsp.ObjectsTag.doEndTag(ObjectsTag.java:180)
at examples.tools._fapsreports._StudentReimbursementScheduleExcelReport._jspService(_StudentReimbursementScheduleExcelReport.java:80)
at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:56)
at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:302)
at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:407)
at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:330)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:336)
at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:59)
at oracle.security.jazn.oc4j.JAZNFilter.doFilter(JAZNFilter.java:283)
at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:535)
at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:281)
at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:766)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:152)
at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:72)
at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:802)
at java.lang.Thread.run(Thread.java:484)

Ergent problem with the jsp file access in tomcat. HELP...

I use tomcat as my server, I have one JSP file located in :
webapps\abc\war\WEB-INF\jsp\index.jsp
You see my project name is abc, I want to access the index.jsp file, I define another jsp file in the path: webapps\abc callled outside.jsp. I want to use outside.jsp to invoke the index.jsp.
Inside outside.jsp it is :
<html>
<head>
<title>index</title>
</head>
<body>
<%@ include file="war/WEB-INF/jsp/index.jsp" %/>
</body>
</html>
When I open the browser, and access, http://localhost:8080/abc/outside.jsp , the content of index.jsp was shown as expect. But, all the link pages of the index.jsp can not shown (PS: the link pages is located in the same path as index.jsp, they are all jsp files). I guess the problem may be that the <%@ include file="war/WEB-INF/jsp/index.jsp" %/> inside outside.jsp include the index.jsp as a static file. Is there any method to make all the link pages of index.jsp can be shown when call from outside.jsp???HELP
Message was edited by:
Mellon
Message was edited by:
Mellon

I don't know why your links can't be shown, but I can tell you that your suspect:
I guess the problem may be that the <%@ include file="war/WEB-INF/jsp/index.jsp" %/> inside outside.jsp include the index.jsp as a static file.is wrong, because included jsp is dynamic, not static.

Problem in the jsp, jstl and java script.

Hi Friends,
I am having one jsp which allows user(Could you please refer to code which is written in my jsp) to enter his username and password i want to get the password in the same jsp and want it to be passed to the custom tag without sending request to the server.Please give me an idea.Thanks in advance.
This is the text field which allows a password.
<INPUT type="password" name="password" size="10" maxlength="29" onblur="chkpwd()" onfocus="this.autocomplete=false" >
and this is the anchor tag which refers as LOGIN BUTTON
<IMG height=19 src="images/submit1.gif" width=106 border=0>
when user clicks on LOGIN BUTTON i am calling one javascript function LOGIN(PASSWORD:) to check the validation if the validation is success then i want to get the password in the same function which is entered .
This is ok i can get the password by "document.formName.password.value" then i need to pass this value to the jstl tag which is our own tag as shown below.
<prefix:tagname value="PASSWORD which is having in the javascript variable".
Please help me .
Quick reply is thankfull.
Edited by: bharathpolanki on Apr 20, 2008 1:55 AM
Edited by: bharathpolanki on Apr 20, 2008 2:55 AM

that's correct. You can use the below code for AJAX request.
<script type="text/javascript">
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//define the function to send the request
function sendRequest(){
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//callback fn
function cbFn() {
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</script>

Hi type casting problem..

I got an arraylist which contains some words..arralist return type is obj..
i want to store these words into string array..
how to solve this problem..
regards,

You can do this to transfer the ArrayList contents to a String[], assuming of course ArrayList does just contain String objects
String[] strArr = new String[arrList.size()];
arrList.toArray(strArr);

Type cast problem......

Hi all,
I'm too new to java. Can somebody help me in this code....
public class a{
     static double x = 4.5678d;
     static float y = float(x);
     public static void main(String args[])
          System.out.println("The number is: "+y);
}when compiled its giving.....
D:\GID\a.java:3: '.class' expected
     static float y = float(x);
                              ^
1 error
Tool completed with exit code 1what to do??
Thanks in advance....

To cast, surround the target type
static double x = 4.5678d;
static float y = (float) x;

Type casting problem.

Hi,
i have the following code.
void arrHashObjects()
     try
          Enumeration objEnumKeys = hashDisplayUserDetails.keys();
          Object anObj[]=null;
          while(objEnumKeys.hasMoreElements())
             String strHashKey = (String)     objEnumKeys.nextElement();
             anObj =(Object[]) hashDisplayUserDetails.get(strHashKey);
             System.out.print(anObj.toString());
     catch (Exception e)
          e.printStackTrace();
}giving me an error in the typecasting.
i need to accept the values of the hastable in an object array.
please help.

this is the error i m facing.
java.lang.ClassCastException
at
BulkSmsFunctions.arrHashObjects(maincls.java:450)Well, the cast you are doing in line 450, whichever one that is, is invalid. I told you the reasons. Hint: use a debugger or System.out.println to determine the object's class when you get it from the map*before* you cast it.

Problem in Struts JSP

Hi All,
I have a problem in the JSP where I am using two select list boxes for displaying two lists of size 4, I can transfer the values from one list box to another using buttons. The html part is as mentioned below:
<td colSpan="2">
<html:radio property="types" value="all" onclick="greyOutTypes(true);fb_MoveAllOptions(transSearchQueryForm.availableTypes, transSearchQueryForm.selectedTypes);displayVal()"/><bean:message key="label.report.allTypes" />
<bean:message key="label.report.or"/>
<html:radio property="types" value="select" onclick="greyOutTypes(false);fb_MoveAllOptions(transSearchQueryForm.selectedTypes, transSearchQueryForm.availableTypes);displayVal()"/>
<bean:message key="label.report.selectTypes" />
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</tr>
<tr>
<td>
<br>
</td>
<td colSpan="4">
<table cellpadding="0" cellspacing="2" border="0">
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<td>
<bean:message key="label.report.selectedTypes"/>
</td>
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<tr>
<td>
<bean:define name="transSearchQueryForm" id="availableTypesCollection" property="availableTypesTM" />
<html:select size="4" property="availableTypes" multiple="true" styleClass="lists" >
<html:options collection="availableTypesCollection" property="key" labelProperty="value" />
</html:select>
</td>
<td vAlign=center align=middle>
<p>
<input type="button" name="btRemoveGroup" class="smallbutton" value="<" onclick="javascript:fb_SelectBoxMoveSelectedOptions(transSearchQueryForm.selectedTypes, transSearchQueryForm.availableTypes);displayVal()">
<br>
<input type="button" name="btRemoveAllGroups" class="smallbutton" value="<<" onclick="javascript:fb_MoveAllOptions(transSearchQueryForm.selectedTypes, transSearchQueryForm.availableTypes);displayVal()">
</p>
</td>
<td vAlign=center align=middle>
<p>
<input type="button" name="btAddGroup" class="smallbutton" value=">" onclick="javascript:fb_SelectBoxMoveSelectedOptions(transSearchQueryForm.availableTypes, transSearchQueryForm.selectedTypes);displayVal()">
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<input type="button" name="btAddAllGroups" class="smallbutton" value=">>" onclick="javascript:fb_MoveAllOptions(transSearchQueryForm.availableTypes, transSearchQueryForm.selectedTypes);displayVal()">
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<bean:define name="transSearchQueryForm" id="selectedTypesCollection" property="selectedTypesTM" />
<html:select property="selectedTypes" multiple="true" size="4" styleClass="lists" >
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After analyzing we found that when we do a move all then the form bean does not get updated with the changes made by the user; like suppose we move all from the Select list to Available list then the availableTypes array (which is associated with the Select for Available Types) show all the types moved to it which is correct but the selectedTypes array (which is associated with the Select for Select Types) also shows all the types in the form bean so when the JSP is reloaded then both the lists boxes show the same entries (all the entries on either side), thus duplicating each entry and causing an error.
The same work absolutely correctly when we manually select one or more entries from either of the list boxes. Meaning both the form bean arrays reflect what the user has selected on the screen.
The methods called on click of the buttons are clearly setting and removing entries selected from the two arrays. We put alerts in the JSP to see the changes in the arrays and they reflect correct values. But once the control has been transferred to the java classes we view the form bean values of the same two arrays which show different values.
Please let me know how I can make the changes of the user reflect in the form bean somehow!
Thanks,
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Hi,
I have similar code, and i have used java script, i hope it is usefull and it is quite simple in fact very simple
<html>
<head>
     <script language="javascript">
          function moveDualList(leftlist,rightlist)
               if(leftlist.selectedIndex==-1)
                    alert("Nothing Slected To Transfer");
               else
                    newDestList = new Array( rightlist.options.length );
                    var len = 0;
                    for( len = 0; len < rightlist.options.length; len++ )
                         newDestList[ len ] = new Option(rightlist.options[ len ].text,rightlist.options[ len ].value,rightlist.options[ len ].defaultSelected, rightlist.options[ len ].selected);
                         var styletextinlist = rightlist.options[len].style.cssText;
                         newDestList[ len ].style.cssText = styletextinlist;
                    for(var i=0;i<leftlist.options.length;i++)
                         if((leftlist.options!=null) && (leftlist.options[i].selected==true))
                              newDestList[ len ] = new Option(leftlist.options[i].text, leftlist.options[i].value, leftlist.options[i].defaultSelected, leftlist.options[i].selected);
                              var styletextinlist = leftlist.options[i].style.cssText;
                              newDestList[ len ].style.cssText = styletextinlist;
                              len++;
                    for ( var j = 0; j < newDestList.length; j++ )
                    if ( newDestList[ j ] != null )
                         rightlist.options[ j ] = newDestList[ j ];
                    for( var i = leftlist.length -1; i >= 0 ; i--)
                    if ( leftlist.options[i] != null && ( leftlist.options[i].selected == true))
                         leftlist.options[i]=null;
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</head>
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                                   <option style = "color:RED">One
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How to use type cast change string to number(dbl)?can it work?

how to use type cast change string to number(dbl)?can it work?

Do you want to Type Cast (function in the Advanced >> Data Manipulation palette) or Convert (functions in the String >> String/Number Conversion palette)?
2 simple examples:
"1" cast as I8 = 49 or 31 hex.
"1" converted to decimal = 1.
"20" cast as I16 = 12848 or 3230 hex.
"20" converted to decimal = 20.
Note that type casting a string to an integer results in a byte by byte conversion to the ASCII values.
32 hex is an ASCII "2" and 30 hex is an ASCII "0" so "20" cast as I16 becomes 3230 hex.
When type casting a string to a double, the string must conform the the IEEE 32 bit floating point representation, which is typically not easy to enter from the keyboard.
See tha attached LabView 6.1 example.
Attachments:
TypeCastAndConvert.vi ‏34 KB

Type cast function use

Good
morning,
I am using
the “type cast” function and the “visa write” subvi to control a DO channel of
Arduino (RS232 communication), please see image attached. Can somebody advise how
should I program in LabVIEW in order to control more DO channels? Furthermore,
when I tried to read the output of “type cast function” during the run of vi I
saw a square symbol. Is there any way to decode this symbol ? I tried to use a
“decimal string to number” suvi but it didn’t work.
Thank you
in advance
Attachments:
samplevi.jpg ‏27 KB

dan_u,
Thank you for your reply. It's the first time I am using RS232 communication and also other harware than that of NI and I am little bit confused. With the configuration shown on my vi everything seems to work fine. This means that I can enable and disable a DO channel of arduino, thus the format comes from the "type cast" function seems ok. A previous effort, when I tried to send a string (also by using the "write to visa") of "0" or "1" to disable and enable the same DO channel wasn't successful. This is the reason why I thought that using the "type cast" function is the correct way to write to visa. Now, what I want to do is using e.g three boolean to control three different DO channels. Could you please advise?
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Attachments:
myvi.jpg ‏99 KB

Class casting problems in JSP's

Folks,
          Several people, including myself, have written about the problems they
          ran into when trying to cast a class in JSP's. The following link might
          provide the answer:
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          I believe this is a major limitation Weblogic put on web app
          development, and hope BEA would eventually find a way to allow non-user
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          Jeff


Folks,
          Several people, including myself, have written about the problems they
          ran into when trying to cast a class in JSP's. The following link might
          provide the answer:
          http://www.weblogic.com/docs51/classdocs/API_jsp.html#sessions
          I believe this is a major limitation Weblogic put on web app
          development, and hope BEA would eventually find a way to allow non-user
          defined types being stored in servlet sessions.
          Jeff

Type casting or something of the sort

This might sound stupid, but I have a 25 character something such as:
1hjfu7y4$y*3fji2389561##k
and I do not know what type it is. It is not a string though, and that is the problem. Is there any sort of equivalent in AS to type casting of c++? Some sort of way to dynamically make this into a string?

typeof():
trace(typeof(1hjfu7y4$y*3fji2389561##k));

Problem with Jdev11G while running the jsp files

Hi Experts
I have a porblem with my jdev 11g
when i create a new application and create a new jsf page (ex PAGE1.jspx) and run it every thing is fine...
When i create a second page (ex PAGE2.jspx) and run it then it is displaying the PAGE1.jspx only and
then i need to manually type the page2 url in browser to access the page2.
If create n number of pages and run any of the page it is navigating to the PAGE1.jspx only
I was not having this problem when iam working with jdev 10g .
Is there and setting i need to change to avoid this or is it the feature of 11g
Thanks
Gayaz

Hi
there is nothing selected in default property of project properties of veiw controller
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only one check box is checked .i.e (Attempt to run archive file before default).
When i uncheck that one iam unable to run my application
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Gayaz

Itunes 10.6.1.7 problem: when I change the file "media type" from 'Music' to 'Podcast' the file disapears from ITUNES. I do this via (1) right click, (2) select 'Get Info', (3) select 'options' tab, and (4) change media type. What is the problem?

Itunes 10.6.1.7 problem: when I change the file "media type" from 'Music' to 'Podcast' the file disapears from ITUNES. I do this via (1) right click, (2) select 'Get Info', (3) select 'options' tab, and (4) change media type. What is the problem?

Hi Memalyn
Essentially, the bare issue is that you have a 500GB hard drive with only 10GB free. That is not sufficient to run the system properly. The two options you have are to move/remove files to another location, or to install a larger hard drive (eg 2TB). Drive space has nothing to do with SMC firmware, and usually large media files are to blame.
My first recommendation is this: download and run the free OmniDiskSweeper. This will identify the exact size of all your folders - you can drill down into the subfolders and figure out where your largest culprits are. For example, you might find that your Pictures folder contains both an iPhoto Library and copies that you've brought in from a camera but are outside the iPhoto Library structure. Or perhaps you have a lot of purchased video content in iTunes.
If you find files that you KNOW you do not need, you can delete them. Don't delete them just because you have a backup, since if the backup fails, you will lose all your copies.
Don't worry about "cleaners" for now - they don't save much space and can actually cause problems. Deal with the large file situation first and see how you get on.
Let us know what you find out, and if you manage to get your space back.
Matt

The best way to solve problem with the site containing JSP Files java co

I am getting NullPointerException pointing at some java file but I have the same JSP file of that name.
and which line it is pointing it is not there in that file means file has 500 lines and it ponting to 700.
I got this information from log file but I cannot get the exact line where the error is coming from.
Can I arrange all code of site according to Netbeans, so that I can complile and run everything to get the problems solved.
I don't know how to proceed?
And one more thing the results on web sites are comimg very slow , any suggetions to improve the performance
I am working on a undocumented code left inbetween by some one and new in real time coding.

JSP pages compile dynamically into Servlets when requested. The error line number you got corresponds to line number of this dynamically generated Servlet not the jsp page. If you are using Apache Tomcat, these dynamically generated files should be located somewhere inside Work Folder. Anyway, you need to debug your jsp page. some line in this particular jsp page is throwing NullPointerException.

Type casting problem in the JSP

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