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Index ‹ java-programmer
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- 2
- how to delete a JList elementI don't see why I'm getting "cannot find symbol" because this JList
uses a DefaultListModel, for the time being, which certainly has the
missing method:
init:
deps-jar:
Compiling 2 source files to /home/thufir/JavaProject29/build/classes
/home/thufir/bcit-comp2611-project2/src/a00720398/view/NewJFrame.java:
198: cannot find symbol
symbol : method removeElementAt(int)
location: interface javax.swing.ListModel
guestList.getModel().removeElementAt(i);
1 error
BUILD FAILED (total time: 39 seconds)
thufir@arrakis:~/bcit-comp2611-project2$
thufir@arrakis:~/bcit-comp2611-project2$ cat src/a00720398/view/
NewJFrame.java | head -n 200 | tail -n 7
private void deleteGuestActionPerformed(java.awt.event.ActionEvent
evt)//GEN-FIRST:event_deleteGuestActionPerformed
{//GEN-HEADEREND:event_deleteGuestActionPerformed
int i =guestList.getSelectedIndex();
System.out.println("delete current guest" + i);
guestList.getModel().removeElementAt(i);
//guestList.getModel(). ???
}//GEN-LAST:event_deleteGuestActionPerformed
thufir@arrakis:~/bcit-comp2611-project2$
what am I doing wrong?
thanks,
Thufir
- 2
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business process services. We combine industry expertise, end-to-end
services to deliver cost-effective solutions that solve our clients'
business problems. THE DAYHUFF GROUP is looking to add ASP .Net and
JAVA/J2EE Developers to join our Columbus, OH office.
We are looking for qualified ASP .Net, JSP developers for full time
employment. 2 plus years experience is required.
Send your resume to email***@***.com
- 3
- java servlet newbie problemHi, I can't get my Java servlets to work. Tomcat-4.1.31 and the example
servlets work fine.
I have added my own context "eka" under webapps.
The code builds ok:
package paketti1;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class Eka1 extends HttpServlet {
public void doGet ( HttpServletRequest request,
HttpServletResponse response )
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head><title>He llo, Cruel
World!</title></head>");
out.println("<body>");
out.println("<h1>Hello, Cruel World !</h1>");
out.println("This is my last servlet.");
out.println("</body>");
}// end doGet
}///:~
This is what I have added to server.xml:
<Context path="/eka" docBase="eka" debug="0" reloadable="true" />
my web.xml:
<?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>
<servlet>
<servlet-name>Eka1</servlet-name>
<servlet-class>paketti1.Eka1</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Eka1</servlet-name>
<url-pattern>/Eka1</url-pattern>
</servlet-mapping>
</web-app>
My class file is here:
/usr/local/jakarta-tomcat-4.1.31/webapps/eka/WEB-INF/classes/paketti1
I put this to address bar http://localhost:8080/eka/Eka1
and I received an error message:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented
it from fulfilling this request.
exception
javax.servlet.ServletException: Wrapper cannot find servlet class
paketti1.Eka1 or a class it depends on
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:844)
at
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:621)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:163)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:144)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2358)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:118)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at
org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:595)
root cause
java.lang.ClassNotFoundException: paketti1.Eka1
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1407)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1252)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:838)
at
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:621)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:163)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:144)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2358)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:118)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at
org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:595)
Apache Tomcat/4.1.31
What have I done wrong?
Regars Lasse
- 4
- Need to clear cache each day since updateSince the last JRE update any game I want to play that is a Java based game
gives me a blank screen. I have to open the console and delete the cache and
restart the game. This is really annoying and is happening on all our PC's.
I also cannot view .jhtml site.
- 6
- 7
- KeyListener kinda deaf (in simple game) - lingo.zip (0/1)Yeah, me neither, I've gone over it again and again and I've tried
lots of stuff and other things I saw on the web, to no avail...
What version of Java are you using? And what IDE, if any?
Anyway, I've attached the code in a zip-file, it's all there.
If you can find anything, I'd be very grateful!
Thanks in advance!
Tim.
On 29 Apr 2004 00:45:43 -0700, email***@***.com (Fahd Shariff)
wrote:
>I can't see what the problem is. I tried running it and it seems to
>print out the char that was typed. This means that the listener is
>working fine. So i assume "grid.invoer(c)" is not doing what u expect
>it to?
>
>PS: Code would be useful :)
>
>email***@***.com wrote in message news:<email***@***.com>...
>> Hello Fahd,
>>
>> Yes, you're absolutely right, haha, stupid mistake on my 'count...
>> changed that immediately.
>> However, it doesn't help getting the keyListener to work.
>> In the meantime I've been trying all kinds of other things, but to no
>> avail.
>> Do you happen to have any other suggestions?
>> If it helps to see all the code, I'd be happy to post it.
>>
>> Thanks!
>> Tim.
>>
>> On 27 Apr 2004 00:53:10 -0700, email***@***.com (Fahd Shariff)
>> wrote:
>>
>> >I think you havent initialised "grid".
>> >
>> >The line:
>> >char c = e.getKeyChar() ;
>> >works fine i.e. you are able to capture the key that the user has
>> >typed.
>> >
>> >But the line:
>> >grid.invoer(c);
>> >does not work because I do not think grid has been initialised. This
>> >is because in jbInit() you are declaring a completely new variable
>> >grid and hence the grid on line 12 never gets initialised (if you know
>> >what i mean).
>> >
>> >I suggest you try fixing jbInit() as follows:
>> >
>> >//Component initialization
>> > private void jbInit() throws Exception {
>> > //before: Speedveld grid = new Speelveld( 10, 20, 5, 5, 40 );
>> > grid = new Speelveld( 10, 20, 5, 5, 40 );
>> > ...
>> >
>> >Hope this works!
>> >
>> >Fahd
>> >
- 10
- concurrency with monitorsHi, I hope you can help me out with this one..
I have a data structure in Java which is accessed from multiple threads.
Some threads may be trying to read the data, and some may be trying to
write data.
Obviously two threads can read at the same time, but if anything wants
to write, everything reading has to finish, only the writing has to then
occur, then more reading can occur.
Because of this I effectively need to implement a read lock and a write
lock, as far as I know, this isnt possible in Java?
I know that I need to use semaphores, but I dont know how in Java.
If someone could give me some info on how I could go about creating some
entry and exit protocols I'd be really grateful.
Andrew Bullock
- 10
- Java or absence ofI used to able to chat live with Time Warner's Road Runnor tech support folk
but all I get now after I log on is a viewing box with lil square on top
left of blank page and can't communicate.
TW folk say I need Java, my question is where did it disappear to as I used
to be able to get to the page and how exactly do I get the java?
I use WIN98SE, IE 6.0, Outlook Exp 6.0
tks all
bill
- 10
- thread safe JDBC codeHow to guarantee the JDBC code is thread safe? Should we put
synchronize block in JDBC methods that performs update/delete
operations?
please advice. thanks.
- 10
- 10
- AccessControlException when serving applet using GlassFish v2I have an applet which uses RMI to connect to a server and it runs fine when
run through the NetBeans applet viewer. But when I run the HTML page that it
is embedded in with GlassFish I get the following exception:
Exception in thread "Thread-7" java.security.AccessControlException: access
denied (java.net.SocketPermission 10.1.1.3:61946 connect,resolve)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkConnect(Unknown Source)
at
sun.rmi.transport.proxy.RMIMasterSocketFactory$AsyncConnector.<init>(Unknown
Source)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(Unknown
Source)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(Unknown Source)
at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source)
at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source)
at sun.rmi.server.UnicastRef.invoke(Unknown Source)
at com.qu0ll.Test_Stub.register(Unknown Source)
when the applet first tries to access a server class method via RMI.
The only difference that I can see between the applet viewer environment and
the GlassFish environment is that in NetBeans I can specify an applet.policy
file to run with when using the applet viewer.
So how can I specify an applet.policy file for running an applet through
GlassFish? Or is this problem not related to the applet.policy file at all?
--
And loving it,
-Q
_________________________________________________
email***@***.com
(Replace the "SixFour" with numbers to email me)
- 10
- Where have all the wintrolls gone...anoncoward wrote:
> JTK wrote:
>
>> anoncoward wrote:
>>
>> [steaming heaps]
>>
>>>>> Oh, now it is self defense - not SELF INTEREST?
>>>>> Interesting indeed.
>>>>
>>>>
>>>>
>>>> What's interesting? self defense, self interest, self preservation -
>>>> put any one of them in there you want. The statement stands.
>>>
>>>
>>>
>>>
>>> I'm not suprised you can't see the difference between self interest
>>> and self defence, not suprised at all.
>>>
>>> Almost 10,000 Iraqi people dead - for your "self interest".
>>>
>>> Nice.
>>
>>
>> Quick Coward, do the math: how many Iraqis would be dead if the
>> non-cowardly coalition hadn't TOWed Uday and Qusay (or whatever their
>> names were, like anybody except the Cowards of the world care) and
>> forced your butt-buddy Saddam to hide in a flea-infested rat-hole for
>> months on end? How many? How many would have been buried alive in
>> the same period of time? How many children tortured to death in front
>> of their parents? How many, you filthy coward?
>
> Whoa Gary R. Van Sickle, working up quite a head there!
> So, I just want to be clear on this - America has invaded
> Iraq because of all this torturing and killing that your pet,
> that you installed, has been carrying out over his years in power.
> This is the same country that ignored one of the worst periods of
> political repression in Iraq following the uprisings in
> 1991 in the north and south. Ignore all the torture and killings
> that web.amnesty.org has been highlighting for decades.
>
> So, it wasn't anything to do with self defence, WMD, or anything
> like that - it was just that your pet had turned nasty?
>
> Can we expect you to do the same in the other parts of the world
> where repression and torture occur? Or is it only in oil rich countries?
>
Huh, I don't see the numbers anywhere in there, do I coward? Do I? Why
is that? Why are you so afraid of a few numbers? So afraid that you
won't type them out for all the world to see, even though you already
know them?
"coward" is much more than a pseudonym for you, isn't it coward?
- 10
- issue using Load LibraryHi,
I am using MAC OSX 10.4 (imac G5).
I am trying to load a JNI library libxxx.jnilib through an applet.
The code is as follows...
System.loadLibrary("xxx");
I compiled, created jar & signed the same. I have placed the
libxxx.jnilib in the /Library/Java/Extensions/ also set
DYLD_LIBRARY_PATH to /Library/Java/Extensions.
I also tried by putting the libxxx.jnilib in
1)
/System/Library/Frameworks/JavaVM.framework/Versions/1.4.2/Libraries/
2) same folder where the java class & html files are present.
3) /usr/lib/java
For all the above cases I am getting following exception..
iMac:/Library/Java/Extensions root# appletviewer Test.htm
JNINetDirect instance created
java.lang.UnsatisfiedLinkError:
/Library/Java/Extensions/libNetDirect.jnilib:
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1586)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1495)
at java.lang.Runtime.loadLibrary0(Runtime.java:788)
at java.lang.System.loadLibrary(System.java:834)
at JNINetDirect.init(JNINetDirect.java:32)
at sun.applet.AppletPanel.run(AppletPanel.java:353)
at java.lang.Thread.run(Thread.java:552)
The same code if I make it as Java Application it is running
fine....Any idea?
Please help me regarding this...
Regards,
Jothi
- 11
- How to return XML from a ServletHi folks,
I am writing a set of servlets that will return XML based on some
backend logic. I have used the DOM method and after my processing am
left with a org.w3c.dom.Document object that I want to stream down to
the client.
Seems simple but I'm not clear how to actually send this xml document
to the response stream. I found a code example that used the
javax.xml.transform.Transformer but am getting an error about
namespaces when I try this. I don't really want to "transform" the xml,
just write it out, so is this really the right method to use? Isn't
there just an XmlWriter class or something that given a stream and
write the doc out to?
- 12
- [applet] handle wrong jreHi,
I have an applet written with java5.
Suppose someone tries to execute it with a jre4.
java console will print a system exception.
But how can I handle that exception properly and show a user friendly
dialog box telling that a jre update is needed ?
thanks !
|
| Author |
Message |
Wired Earp
|
 Posted: 2004-10-23 6:59:00 |
Top |
java-programmer, Argh! Tomcat 5.5.3
I don't get it. First of all, it claims to run on a JRE. This is obviously
a fraud, it even says so when you attempt to start it: "The JAVA_HOME
variable should point to a JDK and not a JRE". I can accept that, being
new to it all and not really caring, but things are
going downhill rather fast from here. I'm installing a simple webapp
in the the the webapps folder, complete with a context.xml in the
conf folder. My servlet behaves just as expected in the browser, but the
log thinks otherwise:
java.lang.ClassNotFoundException:
org.apache.catalina.servlets.DefaultServlet
- even though I see it right there in the
server/lib/servlets-default.jar. Applying some StandardWrapper hotfix does
no good. So I fire up the manager application, thinking that maybe it
handles deployment more effectively. I try different scenarios:
1) Specify a /path and a file-URI. "OK - Installed application at context
path /test" claims the manager, but the app is not listed and upon restart
[in fact, upon restarting the computer, since interaction with the manager
apparently corrupts shutdown of the server] the log complains about a
missing xml file.
2) Specify a context.xml and a file-URI. "Invalid context path was
specified" even though it was supposed to retrieve this from the xml.
3) Specify both a /path, a context.xml and a file-URI. The application
gets installed "OK", but it doesn't display and it still doesn't work [as
I recall, it couldn't read the web.xml, which worked fine when installed
things manually]
So I switch to simple URL parameter installment mode. Again, everything is
installed "OK" but nothing displays on the application list and nothing
works. You'd think i didn't care, when after all the application worked
fine upon manual installment. But thing is, it cannot handle any javax
J2EE classes, only HttpServlet stuff, so something is obviously wrong.
Getting standard JRE DOM stuff compiled is also an appaling excercise. The
container runs on Tiger, but to use DOM features, Xerces has to be added
anyway; and to use DOM3 features, which is sort of the point with Tiger, I
have to pull Xerces from CVS and build it myself.
This may all be in a days work for you people, but Tomcat presents an
unusually high learning curve for the likes of myself. I shall presently
be investigating Suns Application Server since it's there anyway, but if
you have any feedback to the above, I'd be very happy to take any flames
and suggestions [other jdk1.5.0 containers out there?]. I run Linux if it
makes any difference, and I won't even begin to tell how tough it was
getting that to work. Thanks alot!
--
Wired Earp
Wunderbyte
|
| |
|
| |
|
Wired Earp
|
| Posted: 2004-10-23 23:17:00 |
Top |
java-programmer >> Argh! Tomcat 5.5.3
I wrote:
> I don't get it [Tomcat 5.5.3]
I just relived the whole nightmare on Windows with the *exact* same
result. It seems obvious that DOM3, specifically the LS module, doesn't
compute on Tomcat. Steps to reproduce:
1) Install Tomcat 5.5.3, J2SE 1.5.0 and J2EE 1.4.2
2) Deploy servlet with DOMImplementationLS stuff, compiled to 1.5 or
1.4.
I've applied the hotfix and added the Xerces distribution from the
Apache Tomcat download library to endorsed, shared and common - although
supposedly *not* required under 1.5 - to no avail. I've also tried
building it with DOM3 support, which seemed appropriate. Even switced to
J2SE 1.4.2 with no succes. No matter how you twist it, Tomcat gets
completely stuck on the stacktrace presented below. If you have
experienced different results, please let me know about it so I can live
to see day we laugh at my ignorance.
SEVERE: Error loading WebappClassLoader
delegate: false
repositories:
/WEB-INF/classes/
----------> Parent Classloader:
org.apache.catalina.loader.StandardClassLoader@feb48
org.apache.catalina.servlets.DefaultServlet
java.lang.ClassNotFoundException: org.apache.catalina.servlets.DefaultServlet
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1332)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1181)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:938)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:836)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3783)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4045)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:755)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:590)
at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:535)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:470)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1079)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:310)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1011)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1003)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:437)
at org.apache.catalina.core.StandardService.start(StandardService.java:450)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:2009)
at org.apache.catalina.startup.Catalina.start(Catalina.java:538)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:271)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:409)
2004-10-23 16:27:26 org.apache.catalina.core.ApplicationContext log
SEVERE: Servlet /dataplastique threw load() exception
javax.servlet.ServletException: Wrapper cannot find servlet class org.apache.catalina.servlets.DefaultServlet or a class it depends on
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:948)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:836)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3783)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4045)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:755)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:590)
at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:535)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:470)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1079)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:310)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1011)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1003)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:437)
at org.apache.catalina.core.StandardService.start(StandardService.java:450)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:2009)
at org.apache.catalina.startup.Catalina.start(Catalina.java:538)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:271)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:409)
2004-10-23 16:27:28 org.apache.catalina.core.ApplicationContext log
INFO: org.apache.webapp.balancer.BalancerFilter: init(): ruleChain: [org.apache.webapp.balancer.RuleChain: [org.apache.webapp.balancer.rules.URLStringMatchRule: Target string: News / Redirect URL: http://www.cnn.com], [org.apache.webapp.balancer.rules.RequestParameterRule: Target param name: paramName / Target param value: paramValue / Redirect URL: http://www.yahoo.com], [org.apache.webapp.balancer.rules.AcceptEverythingRule: Redirect URL: http://jakarta.apache.org]]
2004-10-23 16:27:29 org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextInitialized()
2004-10-23 16:27:29 org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextInitialized()
2004-10-23 16:27:30 org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextInitialized()
2004-10-23 16:27:30 org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextInitialized()
2004-10-23 16:27:31 org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
2004-10-23 16:27:32 org.apache.jk.common.ChannelSocket init
INFO: JK2: ajp13 listening on /0.0.0.0:8009
2004-10-23 16:27:32 org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/100 config=null
2004-10-23 16:27:32 org.apache.catalina.startup.Catalina start
INFO: Server startup in 9413 ms
--
Wired Earp
Wunderbyte
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Index ‹ java-programmer |
- Next
- 1
- Facebook Proxy | MySpace ProxyFacebook Proxy | MySpace Proxy
http://www.yonghenggzs.cn/ms.htm
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and Facebook proxy server /The #1 MySpace proxy sites for accessing
MySpace at work and school
- 2
- Hot to get dimensions of a JPanel before it's first painted?Hi,
How can I get the dimensions of a JPanel before it's first painted the
first time?
I.e, I have a Form (JDialog) which uses a BorderLayout, and has 2
JPanels on it. The first JPanel has its height computed at runtime (eg
90 pixels), and the other takes up the remainder of the Form. I call
getBounds() on the second JPanel (the last thing in the constructor) and
it returns me width,height=0,0. However if I call getBounds() in the
Forms paint method, it gives me 1024,631 (which is what I want to know
in the constructor).
So basically it seems that the dimensions of the second JPanel are not
set until the Form is rendered and painted for the first time.
I want to use getBounds because it takes into account not only the
reduced size due to my first JPanel, but also the Forms title bar,
windows taskbar (if visible), etc. (which are also dependent on the
active look & feel), so saves me lots of work.
One suggestion is to call setVisible(true) in the constructor but this
can be ugly either with a flicker or the dialog stays on the screen
(hmmm, haven't tried making it non-modal :-[ ). Calling setVisible(true)
did work, however, for JFrames.
You may ask why we need to know the JPanel size anyway if we are using
well-behaved scaleable grid- border- box- layouts, etc. Here's one example:
In one help window we want to have a table (size 3x2) and various parts
of text within this table is highlighted. Eg the start of a word is
highlighted, the end not.
This was very easy to do in html (putting it in a JLabel), which also
included the table definition as html. Cool! However if the JPanel was
300 pixels wide and the table was set to 100%, it wouldn't stretch to
the full width if there wasn't much text in it.
The only way we could make the html table use the full width of the
panel was to explicitly state the size of it (in pixels).
Hence our desire to know the true dimensions of the JPanel.
Is it possible to get the JPanel dimensions before it's first painted?
TIA
BTW, using jdk 1.4.2, Win XP SP1.
- 3
- ResultSet is closedI was testing my program and the above appeared in the output. I have
searched all classes in this particular folder and I do not even have any of
that coded. Does Java issue messages like that? Is it an error? My code ran
ok, just the message appeared.
--
Mike B
- 4
- Cannot run OpenJMS in SuSE 9.2I downloaded the latest OpenJMS (0.7.6.1) but when I try "./openjms.sh
start", the following exception is thrown (note the IP address
192.168.0.88, though my IP is 192.168.0.60):
OpenJMS 0.7.6.1
The OpenJMS Group. (C) 1999-2004. All rights reserved.
http://openjms.sourceforge.net
org.exolab.jms.server.ServerException: java.rmi.ConnectIOException:
Exception creating connection to: 192.168.0.88; nested exception is:
java.net.NoRouteToHostException: No route to host
at
sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:587)
at
sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:185)
at
sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:171)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:306)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at java.rmi.Naming.rebind(Naming.java:160)
at
org.exolab.jms.server.rmi.RmiJmsServer.init(RmiJmsServer.java:121)
at
org.exolab.jms.server.JmsServer.initConnector(JmsServer.java:367)
at
org.exolab.jms.server.JmsServer.initConnectors(JmsServer.java:321)
at org.exolab.jms.server.JmsServer.init(JmsServer.java:197)
at org.exolab.jms.server.JmsServer.main(JmsServer.java:229)
Caused by: java.net.NoRouteToHostException: No route to host
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:364)
at java.net.Socket.connect(Socket.java:507)
at java.net.Socket.connect(Socket.java:457)
at java.net.Socket.<init>(Socket.java:365)
at java.net.Socket.<init>(Socket.java:178)
at
sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:22)
at
sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:128)
at
sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:569)
... 10 more
Any suggestions?
// Ake
- 5
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To register your interested, please log on to www.verticaltalent.com
- 6
- fixed port communicated for EJBI noticed from this paragraph below if i want to talk to ejb container with
the specific port
I can specify the initialport number like what the following said. However,
once client establishes
the connection to the container, server talkes back to the client using
random port number.
I want to know if there is a way to use a fixed port instead of random ones.
From EJB Faq.
The default naming service port in the app server is 3700. If the naming
service is running on a different port, you'll need to set it via
the -Dorg.omg.CORBA.ORBInitialPort property when starting the client JVM.
You can double-check the actual naming service port for a given server
instance by looking in the server instace's domain.xml for "orb-listener-1".
Alternatively, check the Applications..Configuration..ORB..IIOP Listeners
section of the admin GUI for orb-listener-1.
Assuming the server's naming service port is 9876 and the client is on the
same host as the server :
java -Dorg.omg.CORBA.ORBInitialPort=9876
-classpath
$APS_HOME/lib/appserv-rt.jar:$APS_HOME/lib/javaee.jar:/home/user1/myclasses
acme.MyClient
SK
- 7
- ResultSet and getArray()Then I have a result set named rs. I need that one column of ResultSet
rs will be in an array.
I've read about method getArray(), so i've thinked that my code will
be something like that:
================================
private void formWindowOpened(java.awt.event.WindowEvent evt)
{
ResultSet rs=mdbc.inviaQuery("select * from ... where ...");
try {
rs.next();
txtNome.setText(rs.getString("DB_COLUMN_NAME_1"));
rs.getArray("DB_COLUMN_NAME_2");
} catch {
// EXCEPTION
}
================================
Alas there's something that's go wrong and I get this error
(paziente.java552 is the line containing
rs.getArray("DB_COLUMN_NAME_2");) where's my mistake:
Exception in thread "AWT-EventQueue-0"
java.lang.UnsupportedOperationException
at
sun.jdbc.odbc.JdbcOdbcResultSet.getArray(JdbcOdbcResultSet.java:4425)
at cc.Paziente.formWindowOpened(Paziente.java:552)
at cc.Paziente.access$000(Paziente.java:15)
at cc.Paziente$1.windowOpened(Paziente.java:94)
at java.awt.Window.processWindowEvent(Window.java:1187)
at javax.swing.JFrame.processWindowEvent(JFrame.java:266)
at java.awt.Window.processEvent(Window.java:1148)
at java.awt.Component.dispatchEventImpl(Component.java:3955)
at java.awt.Container.dispatchEventImpl(Container.java:2024)
at java.awt.Window.dispatchEventImpl(Window.java:1778)
at java.awt.Component.dispatchEvent(Component.java:3803)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:
242)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:
163)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:
110)
B
- 8
- Jar files used in runtime..Hello.
We have a big/old java enterprise application ( runing on Weblogic )
with over 100 jar
files in our dependency library and approx. 10 deliverables of our
own.
I am implementing IVY as our dependency manager. I have successfully
completed
a chart over compile-time dependencies in our ptoject with JarJar and
from that created
ivy.xml in a local ivy-rep.
Now we will try to use configurations to separate runtime dependencies
from compiletime
dependencies.
Problem:
- How do we discover runtime dependencies without clicking through
EVERY
link in the entire application?
ie Which jar files is used?
With regards Peter
- 9
- I am using tomcat foe springHi
I am using tomcat apache-tomcat-6.0.10 but when i write the
following URL
http://localhost:8080/springapp/index.jsp
and I get the following error.
does any body know the solution of this problem
type Exception report
message
description The server encountered an internal error () that prevented
it from fulfilling this request.
exception
javax.servlet.ServletException: java.lang.NoClassDefFoundError: javax/
el/ELResolver
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:274)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
root cause
java.lang.NoClassDefFoundError: javax/el/ELResolver
java.lang.ClassLoader.defineClass1(Native Method)
java.lang.ClassLoader.defineClass(ClassLoader.java:620)
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:
124)
java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
java.net.URLClassLoader.access$100(URLClassLoader.java:56)
java.net.URLClassLoader$1.run(URLClassLoader.java:195)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
java.lang.ClassLoader.loadClass(ClassLoader.java:306)
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
java.lang.ClassLoader.loadClass(ClassLoader.java:299)
java.lang.ClassLoader.loadClass(ClassLoader.java:251)
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
org.apache.jasper.runtime.JspFactoryImpl.getJspApplicationContext(JspFactoryImpl.java:
201)
org.apache.jsp.index_jsp._jspInit(index_jsp.java:22)
org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:52)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:
157)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:
320)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:
320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803
- 10
- Problem in socket applicationHello everyone,
I have the following setup on a Linux box:
CLIENT APP --MySocket---> Xinetd -------> PROCESSOR APP
The Client and Processor applications are both written in Java.
MySocket is a class that contains a java.net.Socket and the associated
input/output streams. The Socket timeout in MySocket has been set to
100 seconds. Xinetd daemon is used to invoke the Processor app, which
comes up and does some interaction with the Client App and then exits.
Now I have made the Client multi-threaded so that the Client can start
any number of threads simultaneously (using command line args). Each
of these threads sends a request to the Processor and waits for a
response.
The Xinetd daemon has been configured to allow 200 instances of the
Processor app.
The problem I am facing is that after a certain number of threads of
the Client, I start getting "SocketTimeoutException: Read timed out"
while reading the response from the Processor app. After that, some
threads receive proper responses. After that, some threads give the
exception "Cannot connect to the Socket" (for the Processor app.).
These outputs are printed on System.out.
Is this a problem with the timeout settings ? Should I have an
infinite timeout ? Does the Java VM limit the number of simultaneous
threads started ? Do I have to change the scope of some variables in
the Processor App for such a setup to work ? Or does the OS have
something to do with it ?
Please advise me what to do as I have not programmed any application
with such requirements (simultaneous connections from over 100
clients). And also, there are simply too many parameters involved
here.
Thanks in advance.
Best regards.
- 11
- Overriding interface methods on objects you don't instantiate yourselfAssume I have a class inherited from JTextComponent. I don't know what type
of Document will be used as its model, however I want to add functionnality
in the insertString() method of this Document instance.
How do I do this?
If that's not clear, I'd like to do something like this:
public class MyTextComponent extends JTextComponent {
...
protected Document createDefaultModel() {
return super.createDefaultModel() { // doesn't work, ofc
public void insertString(int offset, String str, AttributeSet a)
{
doSomething();
super.insertString(offset, str, a);
}
};
}
}
- 12
- Transactions QuestionsI have been reading about transactions in java and have some questions:
*) Which is mostly used: Container-managed transactions (CMT) or
Bean-managed transactions (BMT)? I dont have Entity Bean in my application.
*) Is this statement true: Use JTA only when the transaction involves more
than 1 database else use JDBC? If yes then how would you deal with this?
It would be nice if somebody points to a detailed tutorial about
transactions.
Thanks
- 13
- "Access has been denied" for some sitesHello -
I have contacted Symantec (Norton firewall) concerning this problem, posted
on other help sites and I have prayed to the Internet gods and I am having no
luck whatsoever with this problem.
I have never had a problem with accessing any sites. Until recently. I am
running Windows XP Home Edition SP2, IE 7. I am system administrator and
owner. One day, I attempted to enter a site that I have accessed several
times before (a horoscope page) and I received this message: "Access has been
denied. ICRA chat pics labeling level exceeded on the above site". I adjusted
my internet settings to allow sites "less than favorable" for some. It didn't
help. I eventually lowered my settings to allow all possible access and it
did not help. I checked the sites listed to be blocked and this site was not
listed. I will see this message where banner ads should be. I tried to access
(via a link) a news story on yahoo and I received the message stating "banned
regular expression URL found". I have been continually unsuccessful in
changing access settings. I allowed Symantec to remotely access my system on
two occassions concerning this and they said it looked like it "might be an
IE problem". So, please... PLEASE, any feedback is greatly appreciated as I
am nearing pulling my hair out!! This shows up randomly and is infuriating!
Thanks so much!!!
--
Maureen =)
- 14
- creating an internalFrameI'm trying to create an instance of the JInternalFrame class, which
works fine.
I defined a JDesktopPane named desktop and I am able to add an internal
Frame to this JDesktopPane.
Inside this JInternalFrame (lets call ist Frame1) I got a button which
"should" open another JInternalFrame called Frame2 inside the same
desktop. But it doesn't work. The compiler says it doesn't recognize the
variable "desktop".
How do I get him to refer to the current instance of the JDesktopPane
I'm using? I have just one JDesktopPane as my workspace.
thx in advance,
Daniel
- 15
- Computer.Its easy to earn money.. www.superslim3.blogspot.com.. www.superslim3.blogspot.com
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