Plz look around this problem
hi i am very newbie to this rmi tech.
i was running a simple rmi program for demonstration and these result
C:\banking_rmi_example>java BankUser
Not Bound: java.rmi.NotBoundException: BankSystem
Exception in thread "main" java.lang.NullPointerException
at BankUser.<init>(BankUser.java:28)
at BankUser.main(BankUser.java:57)
C:\banking_rmi_example>
and when i run server it gives error like
C:\banking_rmi_example>java BankSystemServer
Failure during Name registration: java.rmi.ServerException: RemoteException occu
rred in server thread; nested exception is:
java.rmi.UnmarshalException: error unmarshalling arguments; nested excep
tion is:
java.lang.ClassNotFoundException: BankManagerImpl_Stub
Server started.
Enter <CR> to end.
plz guide me what is the cause of error
Are you sure you have the stub classes generated by rmic in the same directory as all your other classes? Also, you may want to double check your classpath & make sure the registry is in the same directory (or start the registry from within java, that way you don't need to bother running rmiregistry.exe externally)
The notbound exception is occurring on the client side because the server couldn't start up (and you're probably trying to do something with the object returned from the registry, hence the nullptr)
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Please look at this problem and give me solution
hi all,
iam getting this problem when i run th server
javax.servlet.UnavailableException: Missing configuration resource for path /WEB-INF/struts-config.xml
so, i am unable to run jsp, servlets using struts in tomcat.
pls solve this problem
--> i have a servlet file namd Form.java
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
public class Form extends Action {
public ActionForward execute(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
ServletOutputStream sos=response.getOutputStream();
String fname=request.getParameter("firstname");
String lname=request.getParameter("lastname");
String dob=request.getParameter("dob");
String uid=request.getParameter("uid");
String pwd=request.getParameter("pwd");
sos.println("First Name = " + fname +" "+lname+"<br>");
sos.println("DOB = " + dob);
sos.println("Username = " + uid);
sos.println("password = " + pwd);
String target = new String("success");
return (mapping.findForward(target));
-->jsp file named form.jsp
<html>
<body>
exe on httpservlet
<form action="http://localhost:8080/satish/Form">
enter firstname <input type= "text" name="firstname"><br>
enter lastname <input type="text" name="lastname"><br>
enter DateofBirth <input type="text" name="dob"><br>
enter userid <input type="text" name="uid"><br>
enter password <input type="text" name="pwd"><br>
<input type="submit" value="register">
</form>
</body>
</html>
and i have web.xml in F:\projects\tomcat\webapps\satish\WEB-INF
with below contents
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<display-name>struts example</display-name>
<description>
Mycode
</description>
<!--GENERATED_JSPS-->
<!-- JSPC servlet mappings start -->
<servlet>
<servlet-name>action</servlet-name>
<servlet-class> org.apache.struts.action.ActionServlet </servlet-class>
<init-parameter>
<name>application</name>
<value>ApplicationResources</value>
</init-parameter>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>action </servlet-name>
<url-pattern>/satish/Form</url-pattern>
</servlet-mapping>
<!-- JSPC servlet mappings end -->
</web-app>
and struts-config.xml file in F:\projects\tomcat\webapps\satish
with below contents
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.1//EN"
"http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd" >
<struts-config>
<action-mappings>
<action path="/form" type="Form" input="/form.jsp" >
</action>
</action-mappings>
</struts-config>
and run the tomcat server
typed http://localhost/satish/form.jsp
given the input and clicked submit button and i got
this
HTTP Status 404 - /satish/Form
type Status report
message /satish/Form
description The requested resource (/satish/Form) is not available.
Apache Tomcat/5.0.5double post:
http://forum.java.sun.com/thread.jspa?threadID=684573&tstart=0 -
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katykittenoid wrote:
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Plz have a look at this problem
hello
I am getting an exception,
Cant figure out why this is happening........any help will be appreciated
thanks
Exception in thread "main" java.lang.StackOverflowError
at java.util.HashMap.get(HashMap.java:300)
at javax.swing.UIDefaults.getResourceCache(UIDefaults.java:279)
at javax.swing.UIDefaults.getFromResourceBundle(UIDefaults.java:271)
at javax.swing.UIDefaults.get(UIDefaults.java:145)
at javax.swing.MultiUIDefaults.get(MultiUIDefaults.java:44)
at javax.swing.UIDefaults.getUI(UIDefaults.java:734)
at javax.swing.UIManager.getUI(UIManager.java:1012)
at javax.swing.JLabel.updateUI(JLabel.java:256)
at javax.swing.JLabel.<init>(JLabel.java:145)
at javax.swing.JLabel.<init>(JLabel.java:216)
at javax.swing.DefaultListCellRenderer.<init>(DefaultListCellRenderer.java:73)
at javax.swing.DefaultListCellRenderer$UIResource.<init>(DefaultListCellRenderer.java:303)
at javax.swing.plaf.basic.BasicLookAndFeel$2.createValue(BasicLookAndFeel.java:590)
at javax.swing.UIDefaults.getFromHashtable(UIDefaults.java:214)
at javax.swing.UIDefaults.get(UIDefaults.java:144)
at javax.swing.MultiUIDefaults.get(MultiUIDefaults.java:44)
at javax.swing.UIManager.get(UIManager.java:952)
at javax.swing.plaf.basic.BasicListUI.installDefaults(BasicListUI.java:769)
at javax.swing.plaf.basic.BasicListUI.installUI(BasicListUI.java:862)
at javax.swing.JComponent.setUI(JComponent.java:673)
at javax.swing.JList.setUI(JList.java:493)
at javax.swing.JList.updateUI(JList.java:508)
at javax.swing.JList.<init>(JList.java:403)
at myProject.<init>(myProject.java:11)
at check.<init>(check.java:4)
at myProject.<init>(myProject.java:12)
at check.<init>(check.java:4)
at myProject.<init>(myProject.java:12)
at check.<init>(check.java:4)
at myProject.<init>(myProject.java:12)
at check.<init>(check.java:4)
at myProject.<init>(myProject.java:12)
at check.<init>(check.java:4)
at myProject.<init>(myProject.java:12)
at check.<init>(check.java:4)
at myProject.<init>(myProject.java:12)
at check.<init>(check.java:4)
at myProject.<init>(myProject.java:12)
at check.<init>(check.java:4)
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
public class myProject extends JFrame implements ActionListener{
JButton search=new JButton("Search");
DefaultListModel df=new DefaultListModel();
public JList list1=new JList(df);
check c=new check();
public myProject(){
search.addActionListener(this);
//test.addActionListener(this);
public void design(){
//list1.setSize(442,310);
JPanel jp1=new JPanel();
jp1.add(search);
//jp1.add(test);
getContentPane().setLayout(new BorderLayout());
getContentPane().add(list1,BorderLayout.CENTER);
setVisible(true);
getContentPane().add(jp1,BorderLayout.SOUTH);
setSize(450,180);
//pack();
public static void main(String []args){
myProject j=new myProject();
j.design();
public void actionPerformed(ActionEvent event) {
myProject j=new myProject();
if(event.getSource()==search){
list1.removeAll();
Object p[]={"hi","hello"
df.addElement(p[0]);
df.addElement(p[1]);
c.testing();
public class check {
myProject mp=new myProject();
public check() {
public void testing(){
mp.df.addElement("how");
}you have the same line as an attribute of your "check" class
the problem comes from here, you have to delete it;
your problem is that you try to access the same instance of "myProject" in different parts of your program, but you don't know how to do it
to "share" a unique instance, you can either use the singleton pattern, or pass the myProject instance as a parameter in the constructor of your "check" class ; this way, "mp" will always refer to the same object, whereas in your code, each time you create a new instance, you refer to a new object -
Could a Mod take a look at this problem please - f...
Hi,
We've had infinity for just over a month, had several problems (see other posts) but eventually last week the broadband connection settled down nicely to a downstream of 18.5 and a line snr of 7 or so which seemed to make it stable. Over the last two or three days the connection has gone mad again - the router keeps disconnected every few hours (sometimes less than an hour) and the maximum data range has gone between 23 and 35 downstream and now this morning to 20 downstream. The SNR keeps fluctuating between 6.2 and 5.5 and its getting beyond a joke. Also please see the results from the BT checker below - the first one is the usual result and the second is this mornings result - what on earth is going on. When the infinity cabinet first went in and we were connected there were problems and three engineers said the DSLAM card had got to be replaced - bt claim no knowledge of this so has the work been done or not? I have the phone numbers of the engineers who came (I wouldn't ring them but at least I have some proof that I'm not an out and out liar like the help desk seemed to suggest!)This may seem a strange question but how do I report it - last time I tried they sent a boost engineer, he knew nothing about the line card issue, wasn't interested in finding out and just said that the speed we had was what we could get (the speed wasn't an issue, its the frequent drops along with the fluctuating snr and the oddly changing max data rate none of which he was interested in answering.
I was threatened with charges last time so how do you suggest I word the problem - its difficult explaining a complex problem to people who are very pleasant but don't really understand what you are saying.
These are the router stats over the last 24 hours - you can see how the max data rate changes. When the router is stable the snr is around 7 and the max data rate around 24 with the actual download of about 18 (which is fine - I'm not after super speeds just to keep that chugging along would be fine!)
1. Product name:
BT Home Hub
2. Serial number:
+068343+NQ43007883
3. Firmware version:
Software version 4.7.5.1.83.8.173.1.6 (Type A) Last updated Unknown
4. Board version:
BT Hub 5A
5. VDSL uptime:
0 days, 00:49:08
6. Data rate:
2383 / 18537
7. Maximum data rate:
2743 / 31705
8. Noise margin:
5.3 / 5.8
9. Line attenuation:
0.0 / 30.9
10. Signal attenuation:
0.0 / 25.4
1. Product name:
BT Home Hub
2. Serial number:
+068343+NQ43007883
3. Firmware version:
Software version 4.7.5.1.83.8.173.1.6 (Type A) Last updated Unknown
4. Board version:
BT Hub 5A
5. VDSL uptime:
0 days, 00:45:29
6. Data rate:
2383 / 18537
7. Maximum data rate:
2743 / 31813
8. Noise margin:
5.3 / 5.9
9. Line attenuation:
0.0 / 30.9
10. Signal attenuation:
0.0 / 25.4
11. Data sent/received:
4.3 GB / 84.1 MB
12. Broadband username:
[email protected]
1. Product name:
BT Home Hub
2. Serial number:
+068343+NQ43007883
3. Firmware version:
Software version 4.7.5.1.83.8.173.1.6 (Type A) Last updated Unknown
4. Board version:
BT Hub 5A
5. VDSL uptime:
0 days, 06:32:03
6. Data rate:
2383 / 18537
7. Maximum data rate:
2673 / 30689
8. Noise margin:
5.1 / 6.0
9. Line attenuation:
0.0 / 30.9
10. Signal attenuation:
0.0 / 25.4
Product name: BT Home Hub
2. Serial number: +068343+NQ43007883
3. Firmware version: Software version 4.7.5.1.83.8.173.1.6 (Type A) Last updated Unknown
4. Board version: BT Hub 5A
VDSL uptime: 0 days, 07:34:30
Data rate: 2383 / 18537
Maximum data rate: 2717 / 33725
Noise margin: 5.2 / 5.9
9. Line attenuation: 0.0 / 30.9
10. Signal attenuation: 0.0 / 25.4
Product name: BT Home Hub
2. Serial number: +068343+NQ43007883
3. Firmware version: Software version 4.7.5.1.83.8.173.1.6 (Type A) Last updated Unknown 4. Board version: BT Hub 5A
VDSL uptime: 0 days, 00:03:22
Data rate: 2349 / 16721
Maximum data rate: 2783 / 21126
Noise margin: 5.6 / 6.2
9. Line attenuation: 0.0 / 30.9
10. Signal attenuation: 0.0 / 25.4
. Product name:
BT Home Hub
2. Serial number:
+068343+NQ43007883
3. Firmware version:
Software version 4.7.5.1.83.8.173.1.6 (Type A) Last updated Unknown
4. Board version:
BT Hub 5A
VDSL uptime:
0 days, 00:23:14
Data rate:
2383 / 18537
Maximum data rate:
2735 / 31506
Noise margin:
3 / 5.7
9. Line attenuation:
0.0 / 30.9
10. Signal attenuation:
0.0 / 25.4
1. Product name:
BT Home Hub
2. Serial number:
+068343+NQ43007883
3. Firmware version:
Software version 4.7.5.1.83.8.173.1.6 (Type A) Last updated Unknown
4. Board version:
BT Hub 5A
VDSL uptime:
0 days, 00:17:01
Data rate:
2306 / 16583
Maximum data rate:
2756 / 20731
Noise margin:
6 / 6.1
9. Line attenuation:
0.0 / 31.0
10. Signal attenuation:
0.0 / 25.5
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