Getting Exception in JWS while downloading jar files from server

Hi All,
I am running JWS on j2re1.4.2_10(build 03). while JWS is trying to download jar files from web server, I am getting the following Exception.
All the jar files are signed. Any idea ?
JNLPException[category: Download Error : Exception: null : LaunchDesc: null ]
     at com.sun.javaws.cache.DownloadProtocol.doDownload(Unknown Source)
     at com.sun.javaws.cache.DownloadProtocol.getDownloadSize(Unknown Source)
     at com.sun.javaws.LaunchDownload.downloadJarFiles(Unknown Source)
     at com.sun.javaws.LaunchDownload.downloadEagerorAll(Unknown Source)
     at com.sun.javaws.Launcher.downloadResources(Unknown Source)
     at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
     at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
     at com.sun.javaws.Launcher.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)

Are you able to download your *.jar files directly from server
For example say,
http://127.0.0.1:8080/test/testme.jarIf yes,
Then problem should be with your *.jnlp file. Check all your *.jar with respect to context location of your url from where you are downloading *.jnlp file

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ConnectException while downloading the resource from server

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I am getting this problem always while downloading the resources from server:
java.net.ConnectException: Connection timed out: connect
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We checked following:
1. Client can ping to server.
2. Client can connect to server through ssh.
3. we can do telnet to to that ip and port.
As i initially though this problem could be because of the proxy setting i tried the following:
1. removed the proxy from IE.
2.
1) go to Control Panel -> Java
2) click the Network Settings button
3) Select Direct Connection, and click ok .
Still we are getting the same exception please give some clues how to solve this problem.
Thnaks a lot.
Regards
Avdesh

and i checked even firewall is also off.

Error While downloading the file A server Error has occurred, please try again later Downloading Yahoo mail Application Attachments Trying to download My Photos and movie 3 items so i can delete them all

I have icloud and a new iPhone5 ! They work good , took pictures and a few short movies, plugged in my phone to my iMac transfered Items to iPhoto then inported items to iMovie. when getting to know what i was doing i decided to delete pictures and movies i no longer wanted. when i looked for a few missing items i opend Finder and there some where buyt i had already trashed them and deleted the doubles. Still could not find missing pictures and movies 3 items and today after calling yahoo about a different complant with sending feed back for Yahoo mail Applications login . i opened up Attachments Not the Large Attachments just Attachments and there were the 3 items i had been hunting for to Trash and delete. the mail Attachments file does not have the Option to delet Files and photos and movies. When i tried to Download the 3 items a window shows up that says Error While Downloading the Files, A Server Error has occured, please Try Again later. nothing works how do i remove the Trapped photo and movie Blank Files and trash them? Onece they get into my downloads i can do something with them as i understand. That part of it kind of keeps me in Question also because why should i have to down load my own files of Attachments / Pictures and movies if they are comming from my iMac? How much better is iLife11 then iPhoto08 and iMovie08 . Thanks Greg

Hello,
Thank you for your post.
This is a quick note to let you know that we are performing research on this issue.
If you have feedback for TechNet Subscriber Support, contact
[email protected]
Simon Wu
TechNet Community Support

Applet question, how to download resource files from server

hi,
i am new at applet world.
i have an applet that reads some resource, data and configuration files. so i need to download these files from server to client. i did some resarch and could not find how to download files from server in an applet application.
how can i do this task?
thank you for your answers.

You may want to distinguish between 'resources' and data/configuration files.
'Resources' are non-class files that are part of your application, i.e without them the application would simply not work, just like class files.
Those are typically images, sounds or resource bundles (GUI elements translated to different languages) that nobody except you, the developer, would touch (when releasing an upgrade or a patch).
Those should just go into the applet jar or additional jars named in the applet tag.
Data/configuration files, that may be changed by others than the developers, should be made available through HTTP, just like the applet jar itself. The applet will have (read) access to them using java.net.URLConnection.

How to download a file from server machine to client machine using jsp

Hi,
In my application, I have an excel file stored on my server machine. How can I download that excel file on to my client machine using jsp. Is there any other way I can open that file from my machine and save it in my machine using jsp/java?
Its an emergency for me to do this.
Can anyone provide me the full code to download a file from server machine as I don't have
time to browse through various sites.
thanks in advance,
Tiijnar

Please post your code using code tags (click on CODE above the text area, when posting)
response.setContentType("application/octet-stream");Why octet-stream? Set the correct mime-type.
String disHeader = "Attachment; Filename=\"filename\"";The filename should just be the file's name. Not the complete path to the file! This will tell anyone where the file is located on the server. It's also inconvenient because by default,the browser will suggest it as the name for the download.
Your way of writing to the output stream is just plain wrong. See this snippet (picked from [http://balusc.blogspot.com/2007/07/fileservlet.html])
        BufferedInputStream input = null;
        BufferedOutputStream output = null;
        try {
            // Open streams.
            input = new BufferedInputStream(new FileInputStream(file), DEFAULT_BUFFER_SIZE);
            output = new BufferedOutputStream(response.getOutputStream(), DEFAULT_BUFFER_SIZE);
            // Write file contents to response.
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            output.flush();
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            close(input);
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Need to download JAR files from more than ONE HTTP-server ?

Hello,
We have a need to download JAR files for an application, from more than ONE HTTP-server, i.e. any specified HTTP-server in an extremely secure network.
Does a solution exist for this requirement ? Is it possible to design a solution our selfes for this problem ?
Best Regards
Peter

We have a need to download JAR files for an
application, from more than ONE
HTTP-server, That can be done using the extension element
from within the resources element of the main JNLP.
http://java.sun.com/j2se/1.5.0/docs/guide/javaws/developersguide/syntax.html#resources
The extension element should refer to another JNLP
(on the other site) that refers to the Jars. The jar files
in any such (foreign) JNLP need to be signed, and the
JNLP files should declare itself as a <component-desc>.
For any level of detail on using extensions/components,
download the spec. mentioned in the second paragraph
of that section linked above. Unfortunately I can find no
web browsable form of the information.
Here is an example though..
http://www.javasaver.com/testjs/jws/04/glclock.jnlp
This (sandboxed) screenaver demo comes off my
javasaver site. It refers to the JOGL API via an
extension element in the JNLP, that points directly
to the JOGL site. You might notice the security
warning that is produced mentions..
Name: JOGL
Publisher: sun microsystems, inc
Source: https://jogl.dev.java.net
..i.e. any specified HTTP-server in an
extremely secure network. I do not know about an extremely secure network,
but if it is OK to launch a normal JNLP for an
application with a 'main()' from the server, I guess
it should be OK to launch extensions off it - you
might need to set up some tests.

Error while downloading PDF file from FTP Server

Hi Friends,
I have sent a PDF file with data to FTP , Then i want to check that uploaded pdf file , whether that is correct or not?
for that , i have downloaded that file from FTP and i am trying to open the file . but it is giving this problem .
"There was an error opening the document . The file is damaged and could not be repaired."
will you suggest me regarding this.
thanks in advance.
balaji.T.

CALL FUNCTION 'CONVERT_OTFSPOOLJOB_2_PDF'
          EXPORTING
       SRC_SPOOLID                    = spoolno
            src_spoolid                    = wa_file-rqident
            no_dialog                      = ' '
      DST_DEVICE                     =
      PDF_DESTINATION                =
          IMPORTING
            pdf_bytecount                  = numbytes
            pdf_spoolid                    = pdfspoolid
      OTF_PAGECOUNT                  =
            btc_jobname                    = jobname
            btc_jobcount                   = jobcount
          TABLES
            pdf                            = pdf
          EXCEPTIONS
            err_no_otf_spooljob            = 1
            err_no_spooljob                = 2
            err_no_permission              = 3
            err_conv_not_possible          = 4
            err_bad_dstdevice              = 5
            user_cancelled                 = 6
            err_spoolerror                 = 7
            err_temseerror                 = 8
            err_btcjob_open_failed         = 9
            err_btcjob_submit_failed       = 10
            err_btcjob_close_failed        = 11.
because of this one PDF internal table is obtained.
       OPEN DATASET L_FILENAME FOR OUTPUT in text mode MESSAGE MSG.
LOOP AT pdf.
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ENDLOOP.

How to download a file from server?

Hi everyone,
I need to download a file from my server to client machine. I got a sample code from ur forum and I modified it slightly.
//Snippet of code:
public void doGet(HttpServletRequest req, HttpServletResponse res)throws
     ServletException, IOException{
int bytesRead=0;
     int count=0;
     byte[] b1=new byte[1];
     //OutputStream out=res.getOutputStream();
     res.setContentType("application/html");
     //Create an input stream from file URL.
     String fileURL="http://localhost:8080/webapps/upload/upload.html";
     BufferedInputStream bis=null;
     BufferedOutputStream bos=null;
     boolean download=false;
     res.setHeader("Content-disposition", "attachment; filename=upload.html " );
     try{
     URL url=new URL(fileURL);
     URLConnection connection=url.openConnection();
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     bis=new BufferedInputStream(in);
     FileOutputStream fileout=new FileOutputStream("upload.html");
     bos=new BufferedOutputStream(fileout);
     while(-1 != (bytesRead = bis.read())){
     try{
     bos.write(bytesRead);
     bos.flush();
     }//end of try forwhile loop
     catch(SocketException e){
     setError(e);
     break;
The code is getting compiled, when I run the appln using the URL,
http://localhost:8080/upload/servlet/DownloadFile
it opens a pop up dialog box, asking whether to "open", "save" or "cancel" buttons. When I try to open a file, I'm getting a blank page.
I'm not getting the contents of the file.
So pls can anyone tel me wht's wrong in the code or do i need to add few more lines in my code?
Also pls let me know, how can I download any files of type .doc, html, .txt, .zip, or any type, without mentioning the file type?
Thanks in advance

Do not use a FileOutputStream (that will save it locally to the server). Call HttpServletResponse.getOutputStream(), which will send it back to the browser. Also remember to call close() on the stream at the end.
- Saish

How can i download many file from server one times.

Hi,
I want to create the service to download multi-files from web server one time
from browser. It seems no way to do it. My soulition is compressing the files
to zip before download it. The problem is that when the user uncompresses the
files,full path of downloaded files are setted. Look like this:
/usr/tmp/test/file1
/usr/tmp/test/file2
/usr/tmp/test/file3
My question is :
1. Is there any way not to specify the full path of a file when
add the file to zip.
Here is the source
BufferedInputStream bis
= new BufferedInputStream(
new FileInputStream( file ) );
//if not full path . can is works?????
ZipEntry target = new ZipEntry( file.getPath() );
// zos is ZipOutputStream
zos.putNextEntry( target );
int c;
while( ( c = bis.read() ) != EOF ) {
zos.write( (byte)c );
2. Is there any way to get and change the current work directory of my server ?
Please help!!

If i use file.getName(). I will lost the struct of path.
I means that,if i compress the list of files:
/usr/tmp/test1/file1
/usr/tmp/test1/file2
/usr/tmp/test2/file3
can i keep the part of path's strcut. (usr/tmp/../.. etc.)
I tried to do as this:
target = new ZipEntry( file.getPath.substring(1));
an error be reported when uncompressed the zip file.
error message:
warning [zt000002.zip]: extra 28 bytes at beginning or within Zip file (attempting to process anyway)
Error in file #1: bad Zip file offset (Error local header signature not found): 0
(attempting to re-compensate)
Extracting 20030109.xls
Error: unexpected end of file encountered
Error: invalid compressed data to inflate
Why? can i set "any" entry name??

Error while reading a file from server

Mine is 9i database and 11.5.10.2 oracle apps server
I am trying to read PDF file from server, I used the below code
l_bfile:=bfilename('\u05\app\applmgr\11i\oraclecomn\admin\out\jamuna_server','o7742576.out');
if DBMS_LOB.FILEEXISTS(l_bfile) = 1 then
dbms_output.put_line( 'Exists!');
dbms_output.put_line(dbms_lob.getlength(l_bfile));
else
dbms_output.put_line( 'Not Exists!');
end if;
i used forward slashes (/) instead of backward slashes (\) too and i also made dbms_output.put_line(to_char(dbms_lob.getlength(l_bfile)));
while using dbms_log package , i got the below error .I am bit worried since I have created directory and gave sufficicent priviliges too.
Error report:
ORA-00604: error occurred at recursive SQL level 1
ORA-01460: unimplemented or unreasonable conversion requested
ORA-06512: at "SYS.DBMS_LOB", line 485
ORA-06512: at line 24
I am sure bfilename('\u05\app\applmgr\11i\oraclecomn\admin\out\jamuna_server','o7742576.out') is give BFILE which is empty.
Can you please suggest me what I can do to move further? what kind of priviliges it requires to point and read the file from server?
Please help me in this.
Thanks in advance

I suspect you are not using a directory object is the problem.
Here is the formal description of bfilename
http://download.oracle.com/docs/cd/B10501_01/server.920/a96540/functions12a.htm#SQLRF00610
Sybrand Bakker
Senior Oracle DBA

Downloading Media Files from server daily at a particular time on a day

Hi to All,
Actually I am building an application which downloads all the
media files from the server(includes both video and images) after
the download is complete. I will start the slide show of the
downloaded media files accessing them m locally.
ow my problem is I have to download all the media files once
in a day at a particular time on a day from the server(The time is
set in backend).
I can acheive this by running a process and connecting to a
server. But if I close the application window how the process can
run and how it can download media files from the server daily.
Is there a way so that I can create two applications one for
downloading the media files from the server which runs always and
runs in the background. Another one is my main application which
displays the media files that are downloaded and saved in the local
filesystem.
All suggestions are appreciated.
Thanks.

From what I have read you have two options. None of them very nice. One , allow the user to select the files he would like to download , send them out as one fat daddy zip file. The second option is to cue up the selected downloads. When one finishes , the other starts , basically daisy chaining them together. However , you may be able to use javascript to get around this , I'm not sure I stay away from that stuff.

"error while downloading jar file"

I receive this error while trying to download a MIDlet from the web (using the P800 device).I write the jad URL , then continue to installation , and then receive the error I wrote in the subject.
I have no idea what it is , this MIDlet was downloaded before successfully on the P900 and on other devices.
the MIDlet is MIDP 1.0
thanks in advance

Try to download the .jar directly. Atleast my T610 seems to accept the jar easier than going via the jad.
Regards
Roland

Access denied while loading jar files from client

I am creating a platform
that can be started by JWS
and then load plug-ins from client drive.
I've signed my platform (packaged as a jar file),
and set up the security tag in my jnlp,
so that it can access client files.
The plug-ins are packaged as jar files.
And in one of the plug-ins, there is a class that has a JFileChooser field.
While initializing this field, the AccessControlException is thrown.
I can't figure out what is wrong,
So I tried to sign the plug-in, but the problem stands still.
PS. I have made my own ClassLoader,
and this platform works well without JWS.
Please help me, thanks.
Below is the error message:
Java Web Start 1.4.2 主控台,已啟動 Fri Jul 02 01:31:17 CST 2004
Java 2 Runtime Environment:版本 1.4.2,作者:Sun Microsystems Inc.
/*my own log message*/
2004/7/2 上午 01:31:23 pluginmanager.Activater activate /*this is my own classloader*/
配置: activate jar=\Plugins\Common.jar /*load plug-in Common.jar*/
2004/7/2 上午 01:31:23 pluginmanager.Activater activate
細緻: collect resources /*collect other jar files needed by Common.jar*/
2004/7/2 上午 01:31:23 pluginmanager.Activater activate
細緻: load plugin=\Plugins\Common.jar
2004/7/2 上午 01:31:23 pluginmanager.Activater activate
細緻: activating class name=filemanager.FileManager /*instantiate plug-in component*/
java.security.AccessControlException: access denied (java.util.PropertyPermission user.dir read)
     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.checkPropertyAccess(Unknown Source)
     at java.lang.System.getProperty(Unknown Source)
     at java.io.Win32FileSystem.getUserPath(Unknown Source)
     ... /*cut*/
     at javax.swing.JFileChooser.<init>(Unknown Source)
     at filemanager.Open.<init>(Open.java:20)
     at filemanager.FileManager.<init>(FileManager.java:38)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     ... /*cut*/
     at java.lang.Class.newInstance(Unknown Source)
     at pluginmanager.Activater.activate(Activater.java:120)
     at pluginmanager.PluginManager$ActivateAction.actionPerformed(PluginManager.java:53)

When running under Java Web Start, a security manager is installed.
Since you have created your own classloader, you are responsible for assigning permissions to the classes you load.
You can change you class loader to extend SecureClassLoader, then override getPermissions:
protected PermissionCollection getPermissions(CodeSource codesource) {
PermissionCollection perms = super.getPermissions(codesource);
/* add whatever permissions you want your code to hance*/
perms.add( ... );
/* or just add all-permissions */
perms.add(new AllPermission());
or - you can just remove the Security Manager:
System.setSecurityManager(null);
/Dietz

DATA TRANSFER - How to get a SINGLE SPACE in downloaded txt file from UNIX?

Hi Experts,
Am sending data from SAP to UNIX/ Application server and text file on desk top as well.
So, I am keeping a single character just SPACE at the END of each record.
Then, When I see the downloaded text file, I found a SINGLE SPACE at the end of each record, fine.
Then, by using CG3Y t code, I downloaded the UNIX file to my desk top.
But, When I see this UNIX downloaded file from UNIX, I did NOT find any SPACE at the end of each record!!!
Am doing every thing same in both cases.
So,
1 - Why its happening in case of UNIX file?
2 - How to get a SINGLE SPACE at the END in the downloaded file from UNIX?
thanq

Its there, I am talking abut this -
OPEN DATASET - linefeed
Syntax
... WITH { NATIVE
         | SMART
         | UNIX
         | WINDOWS } LINEFEED ... .
Alternatives:
1. ... WITH NATIVE LINEFEED
2. ... WITH SMART LINEFEED
3. ... WITH UNIX LINEFEED
4. ... WITH WINDOWS LINEFEED
Effect
: These additions determine which line end marker is used for text files or legacy text files. If these additions are used, the profile parameter abap/NTfmode is ignored. Simultaneous specification of the values "UNIX" or "NT" in the addition TYPE is not permitted.
If these additions are not used, the line end marker is determined as follows, depending on the operating system of the current application server:
The line end marker for Unix is "LF". Under Unix, OS390 and OS400, only "LF" is used for reading and writing.
The line end marker for MS Windows is "CRLF". Under MS Windows, however, the values of the profile parameter abap/NTfmode can also be used to set whether new files are handled according to Unix conventions or Windows conventions. If the profile parameter has the value "b", the Unix line end marker "LF" is used. If the profile parameter has the value "t" or is initial, the Windows line end marker "CRLF" is used. The setting using the profile parameter can be overridden with the addition TYPE and the value "UNIX" or "NT". If an existing file is opened without the addition TYPE, this is searched for the first line end marker ("LF" or "CRLF"), and this is used for the whole file. If no line end marker is found, the profile parameter is used. This applies particularly if an existing file is completely overwritten with FOR OUTPUT.
If an addition WITH NATIVE|SMART|UNIX|WINDOWS LINEFEED is used, this setting can be changed for the open file using the statement SET DATASET. If neither of the additions is used, the line end marker also cannot be changed using SET DATASET.
Notes
: Without the use of an addition WITH LINEFEED, the line end marker is dependent on diverse implicit factors such as the operating system of the application server, a profile parameter, and line end markings that are already used. For this reason, the explicit use of WITH LINEFEED is recommended, which renders the use of the addition TYPE for setting the line end marker obsolete.
The line end marker that is currently used can be determined for every open file using GET DATASET.
Alternative 1
... WITH NATIVE LINEFEED
Effect
: This addition defines the line end marker independently of the access type according to the operating system of the application server, i.e. "LF" for Unix OS390 or OS400, and "CRLF" for MS Windows.
The line end marker is interpreted according to the current codepage. If a code page is explicitly specified using the addition CODE PAGE, the characters of the line end marker must exist be available or be written in accordance with this code page.
Note
: The addition WITH NATIVE LINEFEED is intended for editing files on an application server that can also be accessed by other means. The addition receives the appropriate line end marker without the program needing to know the operating system.
Alternative 2
... WITH SMART LINEFEED
Effect
: This addition depends on the access type:
In files that are opened for reading using FOR INPUT, both "LF" and "CRLF are interpreted as a line end marker. When opening an EBCDIC file with the addition CODEPAGE, in addition to "LF", "CRLF", and the EBCDIC character strings, the corresponding ASCII character strings are also recognized. In addition, the EBCDIC character "NL" (line separator) is also interpreted as a line end marker.
In files opened for appending or changing with FOR APPENDING or FOR UPDATE, the program searches for a line end marker that is already used in the file. In this process, first the end of the file is identified. If no line end marker is found there, a certain number of characters at the beginning is analyzed. If a line end marker is found, this is used when writing to the file. This is also affected by the addition CODE PAGE. For example, ASCII line end markers are recognized and used in a file opened with EBCDIC, but not the other way round. If no line end marker is found or no search is possible (for example, if the file is opened with the addition FILTER), the line end marker is determined according to the operating system of the application server, as with the addition WITH NATIVE LINEFEED.
In files opened for writing using FOR OUTPUT, the line end marker is determined according the operating system of the application server, as with the addition WITH NATIVE LINEFEED.
Note
: The addition WITH SMART LINEFEED is intended for the generic editing of files in heterogeneous environments. The line end marker is recognized and set for different formats. The use of this addition is the best solution for most application cases.
Alternative 3
... WITH UNIX LINEFEED
Effect
: The line end marker is set to "LF" regardless of the access type and operating system of the application server.
The line end marker is interpreted according to the current code page. If a code page is specified explicitly using the addition CODE PAGE, the characters of the line end marker must be available or be written according to this code page.
Note
: The addition WITH UNIX LINEFEED is intended for editing Unix files in which the specific line end markers are to be retained, even if the operating system of the current application server is MS Windows.
Alternative 4
... WITH WINDOWS LINEFEED
Effect
: The line end marker is set to "CRLF" regardless of the access type and operating system of the application server.
The line end marker is interpreted according to the current code page. If a code page is specified explicitly using the addition CODE PAGE, the characters of the line end marker must be available and be written according to this code page.
Note
: The addition WITH WINDOWS LINEFEED is intended for use with MS Windows files in which the specific line end marker is to be retained, even if the operating system of the current application server is Unix, OS390 or OS400.

How to pause download while downloading a file from azure.

Hi
I have to pause the download on the failure of network or on any error occurred during the downloading from blob storage.
Please help.
Pawan

Hi i am using cloud blob container here's is my code for downloading
   private void _bgw_downloadfile_DoWork(object sender, DoWorkEventArgs e)
            AddtoLogFile("download file do worker called", "_bgw_downloadfile_DoWork");
            try
                string dwnlocfile = fbd_downloadFileLoc.SelectedPath;
                DataGridViewRow row = dgv_downloadfile.CurrentCell.OwningRow;
                string filenameazure = row.Cells["filename"].Value.ToString();
                string filename = Path.GetFileName(filenameazure);
                string fileext = Path.GetExtension(filenameazure);
                CloudStorageAccount storageAccount = CloudStorageAccount.Parse("DefaultEndpointsProtocol=http;AccountName=" + ACCOUNTNAME + ";AccountKey="
+ ACCOUNTKEY);
                // Create the blob client.
                CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
                // Retrieve reference to a previously created container.
                CloudBlobContainer container = blobClient.GetContainerReference("filetransfer");
                CloudBlockBlob blockBlob = container.GetBlockBlobReference(filenameazure);
                // Save blob contents to a file.
                using (var fileStream = System.IO.File.OpenWrite(dwnlocfile + "\\" + filename))
                    blockBlob.DownloadToStream(fileStream);
            catch (Exception ex)
                AddtoLogFile(ex.ToString(), "_bgw_downloadfile_DoWork");
Pawan

Getting Exception in JWS while downloading jar files from server

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