Problem with in VBA

Hi
I have a column that has a
result, as I saycolonne"T7/AD 7".It works well
enough,but my problem is that
some cells are empty and
therefore get the error#DIVISION/0 .How do I get
blank cells instead of errors.My code
is as follows.
DimCurrentRowAs Integer
DimLRAsLong
LR=Range ("AD"&Rows.Count)Than(xlUp).Row
Range ("AH7:AH"&LR).Formula="=T7/AD 7"
Hope you can help me.

Hi,
The alternative formula is: If(AD7,T7/AD7, "")
More reference:
http://www.atlaspm.com/toms-tutorials-for-excel/toms-tutorials-for-excel-avoiding-the-divo-cannot-divide-by-zero-error/
(Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee
the accuracy of this information.)
Regards,
Ethan Hua
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs.

Similar Messages

Problems with the vba command sendkeys in Access 2013.

Hi, I have problems with the vba command sendkeys in Access 2013.
I use a text field (no control) in a form. By means of the VBA command SendKeys "+ {DELETE}", 1 I get the text in memory from the text field, then place (paste) the text in a Word document. The command line sendkeys
is followed by moving the focus to a particular control. In Access 2003, which went smoothly. Now the sendkeys command is executed only in Access 2013 in the control that then receives focus. If the procedure ends with the sendkeys command then it works well.
The procedure with the sendkeys command is activated by a button on a form.
Who can help me?
private user

Hi H.Plmp,
Based on the description, you want to call the sendkeys from a button.
>> use a text field (no control) in a form. By means of the VBA command SendKeys "+ {DELETE}", 1 I get the text in memory from the text field<<
What did you mean that you no control? And how did you get the text in memory from the text field? Also I am not able to understand the exact reason that the command doesn't works in Access 2013.
And based on the test, sendkeys "+ {Delete}" works well for me when I set a focus for the textbox control. Here is th test code:
Me.Controls("txtField1").SetFocus
SendKeys "+ {DELETE}", 1
If I misunderstood, please feel free to let me know.
Regards & Fei
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Problems with a VBA Userform using Multipage (2) and DTPicker.

Hi
Problems with a VBA Userform using Multipage (2) and DTPicker (4)
On Page1 I've got 2 DTPicker, one for the date and the second for the time.
Same thing on Page 2.
Problem:
Only one set will work, if I close the Userform with" MultiPage"on page2, only that set will work.
Same thing if I close on Page 1 then just the set on Page 1 will work.
As anyone seen this problem and any work around you may think would help.
I'm using Windows 7 , Ms Office Pro. 2003
same problem on Windows Vista , XL2003
Cimjet

There are a number of issues relating to the way that date pickers are handled, but the most important is that their output is text. In order to get the values into Excel, you need to format the Excel columns as Date and Custom (time format) and convert
the output to the worksheet from text to date values.
Date pickers also display a few anomalies on multi-page forms, so you need a belt and braces approach. Personally I would put the code to call the form and enter the values in a standard module (as now in the example) and use a belt and braces approach to
maintaining the format.
I think you will find the example now works.
Revised Example
Graham Mayor - Word MVP
www.gmayor.com

Problem with controlling Annotations from Excel VBA

Hi,
I have a PDF document that has plenty of sticky notes attached to it. These sticky notes have been added by multiple authors on all pages of the document. I am trying to import the contents of these sticky notes, their author and the page number to an excel spreadsheet. I am using Excel 2007 and Acrobat Professional 9.0.
This is the code that I am currently using to import the sticky notes, but the problem that I am facing is that when I run the macro -
Same sticky note contents, author and page numbers are imported multiple times
Not all sticky notes are imported, only some of them appear in the final excel spreadsheet
When I compare the number of sticky notes to that in the original PDF file, the number is correct. But the content is repeated content and that is the reason why only some of the sticky notes are imported.
This is an activity that I need to do on regular basis and the number of sticky notes that I need to import to excel may range between 100 to 200. It is really difficult to do this task manually, so an excel VBA macro could prove really helpful.
Sub ImportComments_Click()
Dim Fpath As String
Dim WordObj As Object
Dim wbkOutput As Excel.Workbook
Dim iRow As Integer
Dim i, j, k As Integer
Dim lRet As Long
Dim objAcroAVDoc As New Acrobat.acroAVDoc
Dim objAcroPDDoc As Acrobat.AcroPDDoc
Dim numPages As Long
Dim lAnnotscnt As Long
Dim Subtype As String
Dim NumComments As Long
Dim AcroApp As Acrobat.AcroApp
Dim objAcroPDPage As Acrobat.AcroPDPage
Dim annot As Acrobat.AcroPDAnnot
Sheets("Defect Log").Select
Range("L3").Activate
Fpath = ActiveCell.Value
Sheets("Defect Log").Select
Range("A1").Activate
i = 0
Do While (Not (IsEmpty(ActiveCell.Value)) Or Not (IsEmpty(ActiveCell.Offset(0, 1).Value)) Or Not (IsEmpty(ActiveCell.Offset(0, 2).Value)) Or Not (IsEmpty(ActiveCell.Offset(0, 3).Value)) Or Not (IsEmpty(ActiveCell.Offset(0, 4).Value)) Or Not (IsEmpty(ActiveCell.Offset(0, 5).Value)) Or Not (IsEmpty(ActiveCell.Offset(0, 6).Value)) Or Not (IsEmpty(ActiveCell.Offset(0, 7).Value)) Or Not (IsEmpty(ActiveCell.Offset(0, 8).Value)) Or Not (IsEmpty(ActiveCell.Offset(0, 9).Value)) Or Not (IsEmpty(ActiveCell.Offset(0, 10).Value)) Or Not (IsEmpty(ActiveCell.Offset(0, 11).Value)) Or Not (IsEmpty(ActiveCell.Offset(0, 12).Value)) Or Not (IsEmpty(ActiveCell.Offset(0, 13).Value)) Or Not (IsEmpty(ActiveCell.Offset(0, 14).Value)))
i = i + 1
ActiveCell.Offset(1, 0).Select
Loop
iRow = i + 1
Set wbkOutput = ActiveWorkbook
lRet = objAcroAVDoc.Open(Fpath, "")
Set objAcroPDDoc = objAcroAVDoc.GetPDDoc
numPages = objAcroPDDoc.GetNumPages()
Set objAcroPDPage = objAcroPDDoc.AcquirePage(0)
For k = 1 To numPages
lAnnotscnt = objAcroPDPage.GetNumAnnots()
For m = 0 To lAnnotscnt - 1
If lAnnotscnt = 0 Then Exit For
Set objAcroPDAnnot = objAcroPDPage.GetAnnot(m)
If (objAcroPDAnnot.GetContents <> "" And objAcroPDAnnot.GetSubtype = "Text") Then
Cells(iRow, 5).Value = k
Cells(iRow, 2).Value = objAcroPDAnnot.GetContents()
Cells(iRow, 11).Value = objAcroPDAnnot.GetTitle()
iRow = iRow + 1
End If
Next m
Set objAcroPDPage = objAcroPDDoc.AcquirePage(k)
Next k
lRet = objAcroAVDoc.Close(1)
Set objAcroAVDoc = Nothing
Set objAcroPDAnnot = Nothing
Set objAcroPDPage = Nothing
Set objAcroPDDoc = Nothing
End Sub

Make sure you are current with 9.x patches, just on general principles.
The code seems fine – nothing jumping out at me.
You can also look at using the JSObject methods and trying this via the JavaScript stuff – that will give you more access to the Annotation information…
From: Adobe Forums <[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>
Date: Thu, 24 Nov 2011 04:25:12 -0800
To: Leonard Rosenthol <[email protected]<mailto:[email protected]>>
Subject: Problem with controlling Annotations from Excel VBA
Problem with controlling Annotations from Excel VBA
created by apreeti<http://forums.adobe.com/people/apreeti> in Acrobat SDK - View the full discussion<http://forums.adobe.com/message/4044740#4044740

Button in Bex Analyser 7.0 - problem with setting up Static Parameters

Hello,
I know a similar problem has been discussed here already, but I am still having problems with setting up Static Parameters of my Button in BEx Analyser 7.0, so that I can pass Variable values from that button to my query.
This is what I do - in Static Parameters of my Button I set the following values:
Name                          Index          Value
DATA_PROVIDER        0               DP_1
CMD                             0               PROCESS_VARIABLES
SUBCMD                      0               VAR_SUBMIT
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Just to give you a broader picture - I would like to later use this logic to pass more than one variables into a query, including a hierarchy node, and read the values from an Excel worksheet - however, after many attempts to do so, I started playing with just one variable to figure out what the problem was.
I have already seen the following two threads and SAP notes on passing variable values from the button:
Re: Button in BEx Analyzer 7.0
Re: How to set variables values via VBA.
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/f0881371-78a1-2910-f0b8-af3e184929be?quicklink=index&overridelayout=true
Can anyone please advise?
Cheers,
AL

I managed to figure it out myself!
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I will mark this thread as "answered".

Problem with WorksheetFunction.Transpose()

For a complete history of the whole thing, see this discussion:
http://answers.microsoft.com/en-us/office/forum/office_2013_release-excel/vba-code-for-generate-random-number-between-2/f662cdd8-a101-46a4-aeb8-fde4942f8985?page=1
However, I didn't discover the apparent problem with WorksheetFunction.Transpose() until page 4 of that discussion.
Basically, at some point with a large array of values, .Transpose() fails to perform properly. It fails differently in Excel 2010 than in Excel 2013 also - In 2010 I got 2 or 3 different error messages, but the most prevalent was 13: Type Mismatch.
In 2013 it mostly just doesn't work right - sometimes pasting the same value into all of the destination cells, sometimes pasting the first 9,464 results then #N/A! for the rest.
The processes are designed to return a specified number of unique random numbers from a designated pool: for example - return 75,000 unique, randomly generated numbers from a pool of 100,000 numbers. This scenario will cause failure when .Transpose()
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Here is a link to a workbook I prepared that can be used to demonstrate all of this:
http://www.mediafire.com/download/92wsbtuvf2e57mt/WorksheetTransposeProblem.xlsm
Am I missing something - is there perhaps information published somewhere that says there's a limit on the function as to how many values can be in an array to be transposed? Or have I misidentified the culprit and could it be a limit on the number
of items in a Dictionary object?
My test system setup: Windows 7 Ultimate (64-bit), Intel i7 @ 3.6GHz, 12 GB RAM. Both versions of Office/Excel are 32-bit.
I am free because I know that I alone am morally responsible for everything I do. RAH

I'd thought about the columns limitation - but not in that aspect (the input side) - I'd been thinking in terms of the output side, so it didn't 'click' for me. Thanks. It makes sense to me.
Now, the Excel team might give thought to refining the .Transpose() function to allow for larger operations when the data will fit! Or come up with a new similar function without the limitation in this aspect. Call it "Rotate()" ??
I am free because I know that I alone am morally responsible for everything I do. RAH

HT201250 Problem with recent Excel 2011 update

I installed an update to Mac Excel 2011 yesterday. It complete sucessfully but the VBA component is now missing. All Exel files with VBA code now cannot be opened. The following message is shown for each:
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I attempted to use the Time Machine to restore the Excel applicatiion but it will not run because it says Excel is open when it is not.
Has anyone had a similar problem with the latest update to Excel?

I bought a refurb ipad 32gb. I have noticed when itunes via wifi fails to do an app update, it screws the whole ios; thereby forcing ipad to go into recovery mode. I thought Apple learned the hard way not to allow one app to bring down the whole os!! This is the 5th time an app caused this. last time Apple forced me to reinstall Itunes, wasted 2 hrs.
I worked hard saving up enough funds to get an iPad. Yes, i even paid Applecare too. If this can be fixed, I want a replacement or a full refund.

Admiright Problem with Tdms Excel Automation

Hi
i have a problem with the TDMS Excel Plugin. I normally have now Administrator Rights on my Computer. So i got the Administator Rights to install the TDMS Excel Plugin. After i had the rights, i installed the Plugin and everything works fine. Then i wrote a VBA script with automatically imports TDMS Files and Copy &Paste Values in a new Excel sheet. Thes macro also works fine. After a while i lost my Admin Rights and i am a "Normal" user again. But with no more Admin-rights my macro doesn't work any longer. There is a error messange which tells me that " ...only a Administator can connect or disconnect the Plugin..."
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Can anybody help me with this probblem?
Thanks

Bump...
Chilly Charly (aka CC)
E-List Master - Kudos glutton - Press the yellow button on the left...

Problem with the config.xml

Dear all,
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Any alternate references to be made to this xml namespace declaration.
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My point above is that Project 2007 was extremely buggy and unless files are saved using Project 2007 SP3 first you are likely to experience problems with the files when opening in project 2010. Project 2007 to 2010 with no service packs is problematic.
With SPs applied you should have far fewer problems.
Doesn't look like a exe with SP2 is available yet so you need to add the service pack separately, probably in the updates folder.
If all Project 2007 installs are already at SP3 then no need for this.
Rod Gill
Author of the one and only Project VBA Book
www.project-systems.co.nz

Download causing problems with Microsoft Word

Hi - I’ve downloaded Acrobat Standard subscription.
Because I couldn’t find a download button, I contacted an Adobe forum and was given another link, which allowed me to download (though with no product key – is that normal?)
What has happened is this:
During the downloading process, I was told to close other programmes, including Word – which I did. I was told that Word was not closed, but it appeared to be so I continued anyway…
I now have the problem that each time I try to open a Word doc., I get the long message that I’ve copied in below relating to a problem with/absence of macros.
Eventually I can open the Word doc by clicking the OK button 5 or 6 times – the message goes at last and I can continue. So not I’m not completely incapacitated, but it’s clearly a problem.
I’ve been in touch with Adobe by phone; but in the end your colleague couldn’t help.
So… I’m wondering – can I uninstall the programme and start again? Or might there be another way around this? I’ve tried repairing Word, but that has made no difference.I don't think I have a Serial Number.
Thanks - Laurence

Windows 2007
Mozilla Firefox
Struggling to get a screen shot because I am blocked from any other actions til I get rid of the error message! However, the message reads: "The function you are attempting to run contains macros or content that requires macro language support. When this software was installed you chose not to install support for macros or controls.
"This error usually occurs because of macro security settings. If you know that the macro comes from a source that you trust, you can change your macro security settings to allow you to enable the macro. The way that you change your macro security settings depends on the Microsoft Office System program that you are using.
Microsoft Office Access, Microsoft Office Excel, Microsoft Office PowerPoint, or Microsoft Office Word --
To check your macro security settings, click the Microsoft Office Button, click <program name> Options, click Trust Center, and then click Trust Center Settings.
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Click OK in the Trust Center dialog box to apply the new setting. Click OK to close the program options dialog box.
Close the file and the Microsoft Office program that you are using.
Open the file again. A Security Alert appears in the Document Information Bar just below the ribbon. Click Enable Content to allow the macro to run.
When you have enabled the macro, it is recommended that you return the macro security setting to Disable all macros without notification.
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In the Trust Center dialog box, click Cancel. Click Cancel to close the program options dialog box.
Close the file and the Microsoft Office program that you are using.
Open the file again. A Security Alert appears in the Document Information Bar just below the ribbon. Click Enable Content to allow the macro to run.
If macro security is set to Disable all macros except digitally signed macros, the macro may not have been digitally signed. Verify that you can trust the macro before using the following procedure to allow it to run.
In the Trust Center dialog box, click Cancel. Click Cancel to close the program options dialog box.
Close the file and the Microsoft Office program that you are using.
Open the file again. A Security Alert appears in the Document Information Bar just below the ribbon. Click Enable Content to allow the macro to run.
Microsoft Office Outlook, Microsoft Office Visio, or Microsoft Office Publisher --
To check your macro security settings, on the Tools menu, click Trust Center, and then click Macro Security.
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Close the file and the Microsoft Office program that you are using.
Open the file again. When prompted, click Enable Content to allow the macro to run. If you are using Visio, the Enable Content button appears as part of a Security Alert in the Document Information Bar. If you are not prompted to enable the macro, or if you receive this error again, the macro may not be digitally signed. Verify that you can trust the macro. If you are certain that you can trust the macro, use the next procedure below to enable the macro.
When you have enabled the macro, it is recommended that you return the macro security setting to No warnings and disable all macros.
If macro security is set to Warnings for signed macros; all unsigned macros are disabled, the macro may not be digitally signed. If you are certain that you can trust the macro, use the following procedure to enable the macro.
In the Trust Center dialog box, click Warnings for all macros, and then click OK.
Close the file and the Microsoft Office program that you are using.
Open the file again. When prompted, click Enable Content to allow the macro to run. If you are using Visio, the Enable Content button appears as part of a Security Alert in the Document Information Bar.
When you have enabled the macro, it is recommended that you return the macro security setting to Warnings for signed macros; all unsigned macros are disabled.
Microsoft Office Project --
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In the Security dialog box, click High, and then click OK.
Close the file and Microsoft Office Project.
Open the file again. When prompted, click Enable Content to allow the macro to run. If you are not prompted to enable the macro, or if you receive this error message again, the macro may not be digitally signed. Verify that you can trust the macro. If you are certain that you can trust the macro, use the next procedure below to enable the macro.
When you have enabled the macro, it is recommended that you return the macro security setting to Very High.
If the macro security setting is set to High, the macro may not be digitally signed. If you are certain that you can trust the macro, use the following procedure to enable the macro.
In the Security dialog box, click Medium, and then click OK.
Close the file and Microsoft Office Project.
Open the file again. When prompted, click Enable Content to allow the macro to run.
When you have enabled the macro, it is recommended that you return the macro security setting to High.
This error may also occur for the following reasons:
The certificate of trust that is attached to the macro is invalid. Unless you are certain that the macro is safe, it is recommended that you not trust or run the macro.
The certificate is no longer trusted, was revoked by the issuing authority, or is damaged. Unless you are certain that the macro is safe, it is recommended that you not trust or run the macro.
Visual Basic for Applications (VBA) is not installed on your computer. In this case, no VBA macro can be run, regardless of whether the macro has a valid certificate of trust. You or your administrator may have chosen not to install VBA, or the version of Microsoft Office that you are using may not install VBA by default. If your version of Microsoft Office does not provide VBA as an installable feature, you can upgrade to a version that provides VBA support.
If you are unable to change the security settings, it is possible that another program has locked the security settings. Close all Microsoft Office System programs, then restart your program and change the security settings.
More information about this error message online."

A problem with threads

I am trying to implement some kind of a server listening for requests. The listener part of the app, is a daemon thread that listens for connections and instantiates a handling daemon thread once it gets some. However, my problem is that i must be able to kill the listening thread at the user's will (say via a sto button). I have done this via the Sun's proposed way, by testing a boolean flag in the loop, which is set to false when i wish to kill the thread. The problem with this thing is the following...
Once the thread starts excecuting, it will test the flag, find it true and enter the loop. At some point it will LOCK on the server socket waiting for connection. Unless some client actually connects, it will keep on listening indefinatelly whithought ever bothering to check for the flag again (no matter how many times you set the damn thing to false).
My question is this: Is there any real, non-theoretical, applied way to stop thread in java safely?
Thank you in advance,
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This was one solution from the socket programming forum, have you tried this??
public Thread MyThread extends Thread{
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                    serverSocket = ss.accept();
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}

Problem with Threads and a static variable

I have a problem with the code below. I am yet to make sure that I understand the problem. Correct me if I am wrong please.
Code functionality:
A timer calls SetState every second. It sets the state and sets boolean variable "changed" to true. Then notifies a main process thread to check if the state changed to send a message.
The problem as far I understand is:
Assume the timer Thread calls SetState twice before the main process Thread runs. As a result, "changed" is set to true twice. However, since the main process is blocked twice during the two calls to SetState, when it runs it would have the two SetState timer threads blocked on its synchronized body. It will pass the first one, send the message and set "changed" to false since it was true. Now, it will pass the second thread, but here is the problem, "changed" is already set to false. As a result, it won't send the message even though it is supposed to.
Would you please let me know if my understanding is correct? If so, what would you propose to resolve the problem? Should I call wait some other or should I notify in a different way?
Thanks,
B.D.
Code:
private static volatile boolean bChanged = false;
private static Thread objMainProcess;
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        objMainProcess.start();
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        if( objMainProcess == null ) return;
        synchronized( objMainProcess ) {
            bChanged = true;
            try{
                objMainProcess.notify();
            }catch( IllegalMonitorStateException e ) {}
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        if( objMainProcess == null ) return false;
        synchronized( objMainProcess ) {
            if( bChanged) {
                SendMessage();
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                return true;
            try {
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            }catch( InterruptedException e ) {}
            return false;
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Thanks DrClap for your reply. Everything you said is right. It is not easy to make them alternate since SetState() could be called from different places where the state could be anything else but a status message. Like a GREETING message for example. It is a handshaking message but not a status message.
Again as you said, There is a reason I can't call sendMessage() inside setState().
The only way I was able to do it is by having a counter of the number of notifies that have been called. Every time notify() is called a counter is incremented. Now instead of just checking if "changed" flag is true, I also check if notify counter is greater than zero. If both true, I send the message. If "changed" flag is false, I check again if the notify counter is greater than zero, I send the message. This way it works, but it is kind of a patch than a good design fix. I am yet to find a good solution.
Thanks,
B.D.

Problem with threads running javaw

Hi,
Having a problem with multi thread programming using client server sockets. The program works find when starting the the application in a console using java muti.java , but when using javaw multi.java the program doesnt die and have to kill it in the task manager. The program doesnt display any of my gui error messages either when the server disconnect the client. all works find in a console. any advice on this as I havent been able to understand why this is happening? any comment would be appreciated.
troy.

troy,
Try and post a minimum code sample of your app which
does not work.
When using javaw, make sure you redirect the standard
error and standard output streams to file.
Graeme.Hi Graeme,
I dont understand what you mean by redirection to file? some of my code below.
The code works fine under a console, code is supposed to exit when the client (the other server )disconnects. the problem is that but the clientworker side of the code still works. which under console it doesnt.
public class Server{
ServerSocket aServerSocket;
Socket dianosticsSocket;
Socket nPortExpress;
ClientListener aClientListener;
LinkedList queue = new LinkedList();
int port = 0;
int clientPort = 0;
String clientName = null;
boolean serverAlive = true;
* Server constructor generates a server
* Socket and then starts a client threads.
* @param aPort      socket port of local machine.
public Server(int aPort, String aClientName, int aClientPort){
port = aPort;
clientName = aClientName;
clientPort = aClientPort;
try{
// create a new thread
aServerSocket = new ServerSocket(port) ;
// connect to the nPortExpress
aClientListener = new ClientListener(InetAddress.getByName(clientName), clientPort, queue,this);
// aClientListener.setDaemon(true);
aClientListener.start();
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// System.out.println("Server is running on port " + port + "...");
// System.out.println("Connect to nPort");
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// System.out.println("ERROR: Server port " + port + " not available");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Server port " + port + " not available", JOptionPane.ERROR_MESSAGE);
serverAlive = false;
System.exit(1);
while(serverAlive&&aClientListener.hostSocket.isConnected()){
try{
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Socket aClient = aServerSocket.accept();
//System.out.println("open client connection");
//System.out.println("client local: "+ aClient.getLocalAddress().toString());
// System.out.println("client localport: "+ aClient.getLocalPort());
// System.out.println("client : "+ aClient.getInetAddress().toString());
// System.out.println("client port: "+ aClient.getLocalPort());
// make a new client thread
ClientWorker clientThread = new ClientWorker(aClient, queue, aClientListener, false);
// start thread
clientThread.start();
catch(Exception e)
//System.out.println("ERROR: Client connection failure");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Client connection failure", JOptionPane.ERROR_MESSAGE);
}// end while
} // end constructor Server
void serverExit(){
     JOptionPane.showMessageDialog(null, "Server ","ERROR: nPort Failure", JOptionPane.ERROR_MESSAGE);
     System.exit(1);
}// end class Server
*** connect to another server
public class ClientListener extends Thread{
InetAddress hostName;
int hostPort;
Socket hostSocket;
BufferedReader in;
PrintWriter out;
boolean loggedIn;
LinkedList queue;      // reference to Server queue
Server serverRef; // reference to main server
* ClientListener connects to the host server.
* @param aHostName is the name of the host eg server name or IP address.
* @param aHostPort is a port number of the host.
* @param aLoginName is the users login name.
public ClientListener(InetAddress aHostName, int aHostPort,LinkedList aQueue,Server aServer)      // reference to Server queue)
hostName = aHostName;
hostPort = aHostPort;
queue = aQueue;
serverRef = aServer;
// connect to the server
try{
hostSocket = new Socket(hostName, hostPort);
catch(IOException e){
//System.out.println("ERROR: Connection Host Failed");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Connection to nPort Failed", JOptionPane.ERROR_MESSAGE);
System.exit(0);
} // end constructor ClientListener
** multi client connection server
ClientWorker(Socket aSocket,LinkedList aQueue, ClientListener aClientListener, boolean diagnostics){
queue = aQueue;
addToQueue(this);
client = aSocket;
clientRef = aClientListener;
aDiagnostic = diagnostics;
} // end constructor ClientWorker
* run method is the main loop of the server program
* in change of handle new client connection as well
* as handle all messages and errors.
public void run(){
boolean alive = true;
String aSubString = "";
in = null;
out = null;
loginName = "";
loggedIn = false;
while (alive && client.isConnected()&& clientRef.hostSocket.isConnected()){
try{
in = new BufferedReader(new InputStreamReader(client.getInputStream()));
out = new PrintWriter(new OutputStreamWriter(client.getOutputStream()));
if(aDiagnostic){
out.println("WELCOME to diagnostics");
broadCastDia("Connect : diagnostics "+client.getInetAddress().toString());
out.flush();
else {
out.println("WELCOME to Troy's Server");
broadCastDia("Connect : client "+client.getInetAddress().toString());
     out.flush();
String line;
while(((line = in.readLine())!= null)){
StringTokenizer aStringToken = new StringTokenizer(line, " ");
if(!aDiagnostic){
broadCastDia(line);
clientRef.sendMessage(line); // send mesage out to netExpress
out.println(line);
out.flush();
else{
if(line.equals("GETIPS"))
getIPs();
else{
clientRef.sendMessage(line); // send mesage out to netExpress
out.println(line);
out.flush();
} // end while
catch(Exception e){
// System.out.println("ERROR:Client Connection reset");
                         JOptionPane.showMessageDialog(null, (e.toString()),"ERROR:Client Connection reset", JOptionPane.ERROR_MESSAGE);
try{
if(aDiagnostic){
broadCastDia("Disconnect : diagnostics "+client.getInetAddress().toString());
out.flush();
else {
broadCastDia("Disconnect : client "+client.getInetAddress().toString());
     out.flush();
// close the buffers and connection;
in.close();
out.close();
client.close();
// System.out.println("out");
// remove from list
removeThreadQueue(this);
alive = false;
catch(Exception e){
// System.out.println("ERROR: Client Connection reset failure");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Client Connection reset failure", JOptionPane.ERROR_MESSAGE);
}// end while
} // end method run
* method run - Generates io stream for communicating with the server and
* starts the client gui. Run also parses the input commands from the server.
public void run(){
boolean alive = true;
try{
// begin to life the gui
// aGuiClient = new ClientGui(hostName.getHostName(), hostPort, loginName, this);
// aGuiClient.show();
in = new BufferedReader(new InputStreamReader(hostSocket.getInputStream()));
out = new PrintWriter(new OutputStreamWriter(hostSocket.getOutputStream()));
while (alive && hostSocket.isConnected()){
String line;
while(((line = in.readLine())!= null)){
System.out.println(line);
broadCast(line);
} // end while
} // end while
catch(Exception e){
//     System.out.println("ERRORa Connection to host reset");
JOptionPane.showMessageDialog(null, (e.toString()),"ERROR: Connection to nPort reset", JOptionPane.ERROR_MESSAGE);
try{
hostSocket.close();
     }catch(Exception a){
     JOptionPane.showMessageDialog(null, (a.toString()),"ERROR: Exception", JOptionPane.ERROR_MESSAGE);
alive = false;
System.exit(1);
} // end method run

Problem with threads and camera.

Hi everybody!
I've a problem with taking snapshot.
I would like to display a loading screen after it take snapshot ( sometimes i
have to wait few seconds after i took snapshot. Propably photo is being taken in time where i have to wait).
I was trying to use threads but i didn't succeed.
I made this code:
display.setCurrent(perform);
        new Thread(new Runnable(){
            public void run() {
                while((!performing.isShown()) && (backgroundCamera.isShown())){
                    Thread.yield();
                notifyAll();
        }).start();
        new Thread(new Runnable(){
            public void run() {
                try {
                    this.wait();
                } catch(Exception e) {
                    exceptionHandler(e);
                photo = camera.snapshot();
                display.setCurrent(displayPhoto);
        }).start();This code is sometimes showing performing screen but sometimes no.
I don't know why. In my opinion performing.isShown() method isn't working correctly.
Does anyone have some idea how to use threads here?

Hi,
I've finally managed to work this fine.
The code:
       Object o = new Object();
       display.setCurrent(perform);
        new Thread(new Runnable(){
            public void run() {
                while(!performing.isShown()){
                    Thread.yield();
               synchronized(o) {
                  o.notify();
        }).start();
        new Thread(new Runnable(){
            public void run() {
                try {
                    synchronized(o) {
                       o.wait(1);
                } catch(Exception e) {
                    exceptionHandler(e);
                photo = camera.snapshot();
                display.setCurrent(displayPhoto);
        }).start();

Problem with threads hanging

We have a problem where our application stops responding after a few days of usage. Things will for fine for a day or two, and then pretty quickly threads will start getting hung up, usually in places where they are allocating memory
We are running WebLogic 8.1 SP2 on Sun JDK 1.4.2_04 on Solaris 8 using the alternate threading model and the -server hotspot vm. We are running pretty much the same code that we had no problems with under WebLogic 6.1 SP4 and Sun JDK 1.3.1.
A thread dump usually shows that some or all of our execute threads are in the state "waiting for monitor entry" even though they are not currently waiting on any java locks. Here is a sample thread from the thread dump (we have ~120 threads so I don't want to post the full dump).
=============================================================================================
"ExecuteThread: '8' for queue: 'itgCrmWarExecutionQueue'" daemon prio=5 tid=0x005941d0 nid=0x2c waiting for monitor entry [c807f000..c807fc28]
at java.lang.String.substring(String.java:1446)
at java.lang.String.substring(String.java:1411)
at weblogic.servlet.internal.ServletRequestImpl.getRelativeUri(ServletRequestImpl.java:1872)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3492)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2585)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
=============================================================================================
String.java line 1446 for this jdk allocates a new String object, and all the other threads in this state also are creating new objects or arrays, etc.
We've done a pstack on this process when it's in this state, and the threads that are in the "waiting for monitor entry" that look like they're allocating memory are all waiting on the same lwp_mutex_lock with some allocation method that's calling into the native TwoGenerationCollectorPolicy.mem_allocate_work (see pstack output below for the same thread as in the thread dump above)
=============================================================================================
----------------- lwp# 44 / thread# 44 --------------------
ff31f364 lwp_mutex_lock (e3d70)
fee92384 __1cNObjectMonitorGenter26MpnGThread__v_ (5000, 525c, 5000, 50dc, 4800, 4af0) + 2d8
fee324d4 __1cSObjectSynchronizerKfast_enter6FnGHandle_pnJBasicLock_pnGThread__v_ (c807f65c, c807f7d4, 5941d0, 0, 35d654, fee328ec) + 68
fee32954 __1cQinstanceRefKlassZacquire_pending_list_lock6FpnJBasicLock__v_ (c807f7d4, ff170000, d4680000, 4491d4, fee1bc2c,
0) + 78
fee3167c __1cPVM_GC_OperationNdoit_prologue6M_i_ (c807f7bc, 4400, ff170000, 2d2b8, 4a6268, c807fa18) + 38
fee2e0b0 __1cIVMThreadHexecute6FpnMVM_Operation__v_ (c807f7bc, 963a8, 0, 0, 1, 0) + 90
fed2c2a4 __1cbCTwoGenerationCollectorPolicyRmem_allocate_work6MIii_pnIHeapWord__ (962c0, ff1c29ec, ff1c297c, ff131a26, 4800, 4998) + 160
fed22940 __1cNinstanceKlassRallocate_instance6MpnGThread__pnPinstanceOopDesc__ (ee009020, 5941d0, 15ca581, 3647f0, 4a6268, c807f8c8) + 180
fed34928 __1cLOptoRuntimeFnew_C6FpnMklassOopDesc_pnKJavaThread__v_ (ee009018, 5941d0, 0, 0, 0, 0) + 28
fa435a58 ???????? (ee009018, e86de, 15ca4de, 50dc, 5941d0, c807f9c8)
fb36f9a4 ???????? (0, d412ccd8, ee046c28, ff170000, 0, 0)
fad8b278 ???????? (ee046c28, d6000c90, ee046530, 8, db8e8450, c807f9e8)
fad62abc ???????? (d412ccd8, ee046530, d6000c90, ee3bfa38, 8, c807fa18)
fa4b3c38 ???????? (c807fb9c, 0, f2134700, fa415e50, 8, c807faa8)
fa40010c ???????? (c807fc28, c807fe90, a, ee9e1e20, 4, c807fb40)
fed5d48c __1cJJavaCallsLcall_helper6FpnJJavaValue_pnMmethodHandle_pnRJavaCallArguments_pnGThread__v_ (c807fe88, c807fcf0, c807fda8, 5941d0, 5941d0, c807fd00) + 27c
fee4b784 __1cJJavaCallsMcall_virtual6FpnJJavaValue_nLKlassHandle_nMsymbolHandle_4pnRJavaCallArguments_pnGThread__v_ (ff170000, 594778, c807fd9c, c807fd98, c807fda8, 5941d0) + 164
fee5e8dc __1cJJavaCallsMcall_virtual6FpnJJavaValue_nGHandle_nLKlassHandle_nMsymbolHandle_5pnGThread__v_ (c807fe88, c807fe84, c807fe7c, c807fe74, c807fe6c, 5941d0) + 6c
fee6fc74 __1cMthread_entry6FpnKJavaThread_pnGThread__v_ (5941d0, 5941d0, 838588, 594778, 306d10, fee69254) + 128
fee6927c __1cKJavaThreadDrun6M_v_ (5941d0, 2c, 40, 0, 40, 0) + 284
fee6575c _start   (5941d0, fa1a1600, 0, 0, 0, 0) + 134
ff3758c0 lwpstart (0, 0, 0, 0, 0, 0)
=============================================================================================
Also when it's having this problem, the "VM Thread" is always using a lot of processor time. We did a couple of pstacks today while it was having this problem, and this thread was stuck in the ONMethodSweeper.sweep for over 15 minutes when we finally killed the server.
From the thread dump:
"VM Thread" prio=5 tid=0x000e2d20 nid=0x2 runnable
From the first pstack:
=============================================================================================
----------------- lwp# 2 / thread# 2 --------------------
fed40c04 __1cXvirtual_call_RelocationIparse_ic6FrpnICodeBlob_rpC5rppnHoopDesc_pi_nNRelocIterator__ (42a2f4, fa5fa46d, ffffffff, fc4ffcb8, 42a2f4, 42a324) + 124
fed46318 __1cKCompiledIC2t5B6MpnKRelocation__v_ (42a2f0, fc4ffd24, fc4ffd4c, e802, 0, 6) + 38
fed90c38 __1cHnmethodVcleanup_inline_caches6M_v_ (fa5f7f88, fa608940, 1, 0, fa400000, 6) + 1ac
fede18b4 __1cONMethodSweeperFsweep6F_v_ (2cf38, 0, ffffffff, ff1cf1fc, ff1c66e8, fede1d44) + 1b0
fede1e6c __1cUSafepointSynchronizeFbegin6F_v_ (2cf38, ff1ba138, 5000, 50dc, 5000, 525c) + 248
feef1fd4 __1cIVMThreadEloop6M_v_ (4400, 4000, 4324, 4000, 42b0, 3800) + 3d4
feef1ae4 __1cIVMThreadDrun6M_v_ (e2d20, 2, 40, 0, 40, 0) + 8c
fee6575c _start   (e2d20, ff270200, 0, 0, 0, 0) + 134
ff3758c0 lwpstart (0, 0, 0, 0, 0, 0)
=============================================================================================
Second pstack
=============================================================================================
----------------- lwp# 2 / thread# 2 --------------------
fed41180 __1cXvirtual_call_RelocationIparse_ic6FrpnICodeBlob_rpC5rppnHoopDesc_pi_nNRelocIterator__ (0, ff1b9664, ffffffff, fc4ffcb8, a6f2cc, fc4ffbd0) + 6a0
fed46318 __1cKCompiledIC2t5B6MpnKRelocation__v_ (a6f2c8, fc4ffd24, fc4ffd4c, e802, 0, 6) + 38
fed90c38 __1cHnmethodVcleanup_inline_caches6M_v_ (faded4c8, fadf2c80, 1, 0, fa400000, 6) + 1ac
fede18b4 __1cONMethodSweeperFsweep6F_v_ (2cf38, 0, ffffffff, ff1cf1fc, ff1c66e8, fede1d44) + 1b0
fede1e6c __1cUSafepointSynchronizeFbegin6F_v_ (2cf38, ff1ba138, 5000, 50dc, 5000, 525c) + 248
feef1fd4 __1cIVMThreadEloop6M_v_ (4400, 4000, 4324, 4000, 42b0, 3800) + 3d4
feef1ae4 __1cIVMThreadDrun6M_v_ (e2d20, 2, 40, 0, 40, 0) + 8c
fee6575c _start   (e2d20, ff270200, 0, 0, 0, 0) + 134
ff3758c0 lwpstart (0, 0, 0, 0, 0, 0)
=============================================================================================
Has anyone ever seen anything like this? I'm trying to figure out if this is caused by something we're doing, or something relating to our environment and jvm options. Any ideas?

Thanks for the reply - I'm testing our app with the +UseConcMarkSweepGC now in our test environment to make sure it doesn't cause any problems there. Unfortunately the only place we've had this problem is on the production server, so it's extra difficult debugging this.
We're using the following memory options:
-ms512m -mx512m -XX:NewSize=128m -XX:PermSize=192m -XX:MaxNewSize=128m -XX:MaxPermSize=192m -XX:SurvivorRatio=8and the following debugging options, as we've also been seeing OutOfMemoryErrors ( see http://forum.java.sun.com/thread.jsp?forum=37&thread=522354&tstart=45&trange=15 )
-verbosegc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintHeapAtGCBTW, which c++filt version and options are you using? Our Solaris boxes only seem to have the GNU version installed. I was trying to run that on some of the other stack traces and wasn't getting anywhere, and didn't know if because it was GNU version wouldn't work on something compiled with the Sun compiler.
Thanks!
--Andy

Problem with in VBA

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