Cannot mount the file, ClassCastException

Hello

Can you tell me why I can't perform a file object in the example below?

@Override
    public int getChildCount(Object parent) {
        
        //This line throws a ClassCastException
        File file = (File)parent;
        
        File[] files = file.listFiles();
        return files.length;
    }

(It is an implementation of a method of the TreeModel interface).

Thank you.

Because the parent is not an object file. I believe that parent is a TreeNode, check if the user object is a file.

Tags: Java

Similar Questions

ORA-19504: cannot create the file '+ DATA '.

Hello everyone.
This is the scenario:
We have a test server that is used to restore daily backups of the Production database. Restore us the database with the same SID as the production one.
For specific reasons, we need create a second database (with a different SID) on this server with an older backup from the production one. To realize that I'm trying to use a part of the "DUPLICATE without connection to the target" tutorials on the web.
I tried the simple guide that I found which is:
(1) copy the backup files cold /somedirectory
(2) start OLD database with nomount
(3) connect RMAN with OLDER as an auxiliary
(4) run the following: DUPLICATE DATABASE FOR OLD BACKUP LOCATION ' / somedirectory' NOFILENAMECHECK.
Here's the result (I deleted some lines because of the size of it):
----------------------
RMAN > ProdDB to OlderDB DUPLICATE DATABASE
2 > LOCATION of BACKUP "/ home/oracle/OlderBackupFiles.
3 > NOFILENAMECHECK.
4 >
From October 1, 14 Db double
content of Script memory:
{
clone of SQL 'alter system set control_files =
"+DATA/OlderDB/controlfile/current.829.859839217" comment =
' Set by RMAN "scope = spfile;
clone of SQL 'alter system set = db_name
"ProdDB" comment =
' Modified by RMAN duplicate "scope = spfile;
clone of SQL 'alter system set db_unique_name =
"OlderDB" comment =
' Modified by RMAN duplicate "scope = spfile;
clone to stop immediately;
Start clone force nomount
Restore controlfile primary clone of ' / home/oracle/OlderDB/controlfile_ProdDB_20141001_4159.bkp';
change the clone database mount;
}
execution of Script memory
SQL statement: alter system set control_files = comment "+DATA/OlderDB/controlfile/current.829.859839217" = "defined by RMAN" scope = spfile
SQL statement: change the system db_name set = comment "ProdDB" = "modified by RMAN duplicate" scope = spfile
SQL statement: alter system set db_unique_name = comment "OlderDB" = "modified by RMAN duplicate" scope = spfile
(...)
From restoration to 1 October 14
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID = 191 type device = DISK
channel ORA_AUX_DISK_1: restore the control file
channel ORA_AUX_DISK_1: restoration complete, duration: 00:00:03
output file name=+DATA/OlderDB/controlfile/current.829.859839217
Restoration finished in October 1, 14
mounted database
output channel: ORA_AUX_DISK_1
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID = 191 type device = DISK
content of Script memory:
{
until the SNA 274262921.
the value of newname for datafile clone 1 again;
the value of newname for datafile clone 2 again.
the value of newname for datafile clone 3 again.
the value of newname for datafile clone 4 new ones;
the value of newname for datafile clone 5 again.
the value of newname for datafile clone 6 again.
the value of newname for datafile clone 7 again.
restoration
database clone;
}
(...)
From restoration to 1 October 14
using the ORA_AUX_DISK_1 channel
channel ORA_AUX_DISK_1: from the restore backup set data file
channel ORA_AUX_DISK_1: specifying datafile (s) to restore from backup set
channel ORA_AUX_DISK_1: restore datafile 00001 to + DATA
channel ORA_AUX_DISK_1: restore datafile 00002 to + DATA
channel ORA_AUX_DISK_1: restore datafile 00003 to + DATA
channel ORA_AUX_DISK_1: restore datafile 00004 in + DATA
channel ORA_AUX_DISK_1: restore datafile 00005 to + DATA
channel ORA_AUX_DISK_1: restore datafile 00006 to + DATA
channel ORA_AUX_DISK_1: restore datafile 00007 to + DATA
channel ORA_AUX_DISK_1: reading from the backup /home/oracle/OlderDB/database_ProdDB_20141001_4157.bkp piece
channel ORA_AUX_DISK_1: ORA-19870: error when restoring the backup /home/oracle/OlderDB/database_ProdDB_20141001_4157.bkp piece
ORA-19504: cannot create the file '+ DATA '.
ORA-17502: ksfdcre:4 cannot create the file + DATA
ORA-15041: diskgroup space 'DATA' exhausted
switch to the previous backup
Oracle instance started
(...)
content of Script memory:
{
clone of SQL 'alter system set = db_name
"OlderDB" comment =
' Restore the original value by RMAN "scope = spfile;
clone of SQL 'alter system reset db_unique_name scope = spfile;
clone to stop immediately;
}
execution of Script memory
Errors in the script of the memory
RMAN-03015: an error has occurred in the script stored memory Script
RMAN-06136: the auxiliary database ORACLE error: ORA-01507: database not mounted
ORA-06512: at "SYS." "X$ DBMS_RCVMAN ', line 13466
ORA-06512: at line 1
RMAN-05556: not all data files have backups can be recovered on SNA 274262921
RMAN-03015: an error has occurred in the script stored memory Script
RMAN-06026: some targets not found - abandonment of restoration
RMAN-06023: no backup or copy of the file 4 found to restore
RMAN-06023: no backup or copy of datafile 3 found to restore
RMAN-06023: no backup or copy of datafile 2 found to restore
RMAN-06023: no backup or copy of datafile 1 found to restore
RMAN-00571: ===========================================================
RMAN-00569: = ERROR MESSAGE STACK FOLLOWS =.
RMAN-00571: ===========================================================
RMAN-03002: failure of the command duplicate Db at 15:39:11 01/10/2014
RMAN-05501: abandonment of duplicate target database
Complete recovery manager.
------------------------------------------------------------------
The first mistake of the stack was ORA-19504 while trying to restore the backup of the database.
First thing I took a glance was ASM occupation but it enough available space.
The second was a permission problem, but it doesn't seem to be the case because RMAN can correctly write the controlfile to ASM.
One have some advice on what I should look for?
Thanks in advance sorry for my English.
Select this option.

Hello.

Thanks, but is not the case. As I have said, that the DATA diskgroup has space enough he uses only a single disk in a RAID.

But I solved my problem... To the auxiliary database, I added the following to the spfile:

DB_FILE_NAME_CONVERT = '+ DATA/ProdDB', '+ DATA/OlderDB ".

LOG_FILE_NAME_CONVERT = '+ DATA/ProdDB', '+ DATA/OlderDB ".

I don't know why, but with these two clauses, it worked well. Perhaps RMAN was trying to restore it to the wrong place?

Cannot rename the file redlog
Experts!

We face below exceptions by renaming the log file to roll forward on oracle 10g.

SQL > the judgment;
ORACLE instance stops.
SQL > bootable media.
ORACLE instance started.

Total System Global Area 3423965184 bytes
Bytes of size 2119752 fixed
1828718520 variable size bytes
1577058304 of database buffers bytes
Redo buffers 16068608 bytes
Mounted database.
SQL > ALTER DATABASE FILE RENAME ' E:\RMANDB\RMANDB\REDO01. NEWSPAPER 'TO' E:\RMANDB\RMAN
DB\REDO09. JOURNAL ";
ALTER DATABASE FILE RENAME ' E:\RMANDB\RMANDB\REDO01. NEWSPAPER 'TO' E:\RMANDB\RMANDB\RE
DO09. JOURNAL"
*
ERROR on line 1:
ORA-01511: Error renaming data/log files
ORA-01512: error rename the logfile E:\RMANDB\RMANDB\REDO01. JOURNAL - new file
E:\RMANDB\RMANDB\REDO09. LOG not found
ORA-27041: could not open the file
04002 - OSD: could not open the file
S/O-error: (OS 2) the system cannot find the file specified.

Please suggest where we make mistake...

Thank you
You cannot rename an online redo log file.
You must ensure that it is not "ACTIVE" or "CURRENTS" and drop logfile group rightaway without renaming.

------------
Sybrand Bakker
Senior Oracle DBA

Photosmart C4780 installation fails at the "system cannot find the file specified."

My problem began simply with your printer, a HP Photosmart C4780, who has always had a wireless connection and would not print. Initially, the checked network connection fine control panel of the printer. I ran a Microsoft printer troubleshooting, which found a block in line print and authorized. The first test page print, but did print the "internal test page. I did not understand what it meant, so I looked for help on the HP site.

I ran the HP print and Scan Doctorand he suggested I have reinstall the driver. I have downloaded and saved the current HP (PS_AIO_06_C4700_USW_Full_Win_enu_140_175.exe) and then uninstalled the existing driver. When I tried to install a new, a window pops up saying "the system cannot find the file specified," with only a single box for click that simply says "OK". The installation went through 'examining installation options', after entering "check updates, download updates, install updates" and then it was all in "audit system", who jumped out of the window "file not found" upwards, and when I clicked 'OK', the installation window as well as the error message box simply disappeared. Which I suppose is the path to the file is under the window, but it didn't fit so he showed not the end. What I read was "C:\Users\... \Local\Temp\7zS588E\Setup\.\Setup\hpzpnp40...»

I found a topic on the same printer model for the same problem in the forum, which offered this hotfix:

You must first complete a level 3 of the software uninstallation. I've included the steps below to do this.

1. press the Windows key and the letter R
2. type %temp%, and then click OK
3. open the 7z folder (a more recent if there are multiples)
4 open the util folder
5 open the folder of the ccc
6. double-click on the Uninstall_L3

Once you have completed the Uninstall_L3, delete all of the items listed in the temp folder. Note, you will not be able to remove all the elements, please ignore those that do not. Then please empty the trash and perform a clean boot. I've included the document «How to perform a boot in Windows» If your computer does not request it, restart your computer.

Once your computer is back, you must reinstall the printer software. You can do this either by using the Setup CD, or by downloading the software.

I did what was suggested, until he got to the point where it says it was the case recommend not removing any more items if I had intended on using the HP Officejet printer (Yes, I have a second HP printer connected to the network) anytime in the future. Not really understand how it all works, I decided to stop what I was doing, so unfortunately it has not solved my problem.

Do I need to uninstall both printers HP before I can reinstall a? And if I do that, is there a reason that I wouldn't be able to reinstall the two printers? Looks like I'm asking trouble. Bottom line... I can not install the driver.

I tried to install the full versions and the driver base and still get the same result.

I have a HP Pavilion dv6 - 3100t for computer laptop, running Windows 7 Edition Premium, version 6.1.7601 family service pack 1 64-bit. I have not installed new hardware or software. This printer has always had a wireless connection. The router I'm using is a Netgear 54Mbps WGR614 v6 (provided by my cable company) and the network includes not only my laptop and the Photosmart printer, but also desktop ASUS, HP printer, an Officejet 6300 series (used only for printing graphics and photos via a wired to the router) and a chip on Vizio TV. I use Norton 360 first Edition and disabled the antivirus auto-protect when I downloaded and tried to install the driver.

Help, please! And thanks in advance for your time and your attention.

Oh, Jamieson, it worked! I can print again! A massive amount of thanks and congratulations to you.

I couldn't believe it when he actually passed the point where it normally would stop the installation, but then almost at the end, upward jumped «Fatal error during installation» My excitement sank into a depression. He said while the installation was not successful and he needed to collect information in order to diagnose the fault. I looked at what has been collected, and it was more or less gobblety-* beep * for me. There was a code of 19714722 error condition, if that means anything.

Then he placed on my desk, the "Error of Installation HP - Windows 7.hta" file and instructed me to do away with the current window, restart, and then open the file and move forward with these guidelines. I did and he basically had me to restart the computer once again, and then turn the printer off, unplug the printer, then unplug the router, wait 30 seconds and then plug the TAA - DAA and back in, I'm back in the business of printing.

Thank you very much for your time and patience.

All the best to you and yours!

Windows Media Player cannot play the file

I get the following message appears when you try to listen to a streaming radio station live online.

Windows Media Player cannot play the file. A network firewall might prevent the player to open the file by using the UDP transport protocol. If you typed a URL in the open URL dialog box, try using a different transport protocol (for example, "http:").

I can listen to other stations, but not this one. Before about 2 weeks ago, I had no problem getting the live stream. Has been no change on my computer. URL is: http://www.wlpv1079online.com/Live%20Streaming%20Page.htm

Hi Kathy,

1. what operating system is installed on the computer?
2. which web browser is installed on the computer?
3. What is the accurate and complete error message you get?

Method 1
I suggest you try the steps from the following link:

Windows Media Player Error Message help
http://www.Microsoft.com/windows/windowsmedia/player/Webhelp/default.aspx?&mpver=11.0.5721.5145&ID=C00D11B6&ContextId=70&OriginalID=C00D2EF9

Method 2
If the problem is with a particular station, then I suggest you to contact the support of the radio station.

Method 3
I suggest you to disable the firewall and see if the problem still occurs.

Enable or disable Windows Firewall
http://Windows.Microsoft.com/en-us/Windows7/turn-Windows-Firewall-on-or-off

Note: Make sure that you enable the firewall after troubleshooting is completed.

Unable to play video file error: Windows Media Player cannot play the file. The player might not support the file type or a required codec may not be installed on your computer

Original title: Windows Media Player shows that the new codecs are required

Original title: query codec and Media Player re

Have used windows media player for many years on my dell. Usually to see the videos from Sony handycam. Just downloaded wmediaplayer and recent videos from Camcorder will not open one of the videos.

The following message is displayed "Windows Media Player cannot play the file. The player might not support the file type or a required codec may not be installed on your computer. »

As I have not changed anything helpful suggestions please.

concerning

The winemaker

Hello

1. What is the format of the video file?

2. what operating system is installed on the computer?

Method 1: Run the troubleshooter in Windows Media Player on Windows 7 settings:

http://Windows.Microsoft.com/en-us/Windows7/open-the-Windows-Media-Player-settings-Troubleshooter

Method 2: You can check if the file format of the music files are supported by Windows media player using the link below.

Information on the types of media files that supports Windows Media Player

Note: If you have tried to play the file type is included in this table, the file might have been encoded with a codec that is not supported by Windows Media Player. If this is the case, Windows Media Player cannot play the file.

Method 3: In addition, you can also download & install the necessary codec to play the files.

For more information, see: Codecs: frequently asked questions

(For Windows Vista)

WARNING of THIRD PARTY SOFTWARE: Using third-party software, including hardware drivers can cause serious problems that may prevent your computer from starting properly. Microsoft cannot guarantee that problems resulting from the use of third-party software can be solved. Software using third party is at your own risk.

Hope this information is useful.

Recently I have not been able to burn a CD with Windows Media Player: I get an error message: "Windows Media Player cannot find the file."

Hello

I recently haven't been able to burn a CD with Windows Media Player (he worked last week, but not now). I get an error message "Windows Media Player cannot find the file. The link between the library item and its digital media file associated with may be broken. "Try to fix the link or delete the item. There is a web help option which says that to fix a link, you click on the blue icon next to the item, then click "Browse this article. But the only icon I see is a little blue triangle next to individual songs in the library pane or list, there is no icon next to the name of the playlist. Although the click with the right button on the blue triangle gives me a few options, "Browse this point" is not one of them. Does anyone have any ideas what is wrong and how can I sort it please!

Rick

original title: burning a CD problems

Hello

(1) what version of Windows Media Player do you use?
(2) what is the model of your CD burner?
(3) you have the latest drivers for the CD burner?
(4) what type of file you are trying to burn?

(5) you receive error codes?

(6) what version of the operating system is installed on the computer?

(7) we get to a particular file?

Method 1: You can try to update the drivers of your CD burner visit the manufactures Web site.

Method 2: You can try to remove the CD, and then insert another CD and try to burn another file and check if the problem persists.

Method 3: You can also check out the link below:

Windows Help and procedures: burn a CD or DVD in Windows Media Player: frequently asked questions

I hope this information helps!

Windows 2k8R2 - receiving error when you connect (MMC cannot open the file: C:\Windows\system32\ServerManager.msc)

Windows 2008 R2 - I just started getting this when I connect, and also when I try to manage the machine:

MMC cannot open the file:

C:\Windows\system32\ServerManager.msc

It is perhaps because the file does not exist, is not an MMC console, or was created by a later version of MMC. This may also be because you don't have sufficient access to the file.

It always worked before and work for other users simply not me on this particular area. It is a production company, and I need a quick resolution please. Thanks in advance.

PM

Hello

Your Windows is better suited for the public of Windows Server on TechNet. Please post your question in the TechNet Windows server forum.

http://social.technet.Microsoft.com/forums/en/category/WindowsServer

Setup cannot copy the file hpinkins5412.exe

Setup cannot copy the file hpinkins5412.exe

Using full features software and pilot OJ6500_E710n - z_334.4

When I use this version:

full feature software and driver OJ6500_E710n-z_1315

All software installs normally. I get all the correct screens. I connect to a network printer. He fined the printer. He asks me where (postcode), I use the software. I re - start. The drivers are not installed. I have run the diagnostics. He said that the drivers are not installed.

HP Officejet 6500 has more 710n

XP Pro sp3

I solved the problem with the latest version of the software:

full feature software and driver OJ6500_E710n-z_1315

The pilot would not have installed. I used this web page to fix:

http://support.HP.com/us-en/document/c01084522

Thank you

Docfxit

Get error Windows media - player media player cannot play the file (0xc00d11B1)

When I try to play music on napster, I get a message that says that the media player cannot play the file, and not (0xc00d11B1) that can napste fix or is there a problem with my Media Player?

Hello

I suggest to refer to this link and follow the instructions in the link below and check, if this can help:

http://Windows.Microsoft.com/en-us/Windows7/C00D11B1

It will be useful.

Critical error: cannot find the file [CardGames.dll]. The game cannot continue.

I recently noticed this error message-

Critical error: cannot find the file [CardGames.dll]. The game cannot continue.

whenever I try to click on a card game. Help, please! Is there something I can download again to fix this error?

Hi jaymeister3580,

It seems that the problem is related to the installation of the game itself, I suggest you try the following steps:

Step 1: Auditor of file system (CFS) scan to fix all of the corrupted system files. To do this, follow the steps mentioned in the link below. The following steps are worth a try:

How to use the System File Checker tool to fix the system files missing or corrupted on Windows Vista or Windows 7

http://support.Microsoft.com/kb/929833

Check if the problem persists

Thank you, and in what concerns:

Ajay K

Microsoft Answers Support Engineer

Visit our Microsoft answers feedback Forum and let us know what you think.

Windows XP Professional Setup copy iaStor.sys then the OS says that it cannot copy the file iaStor.sys.

After the RAID 0 disk partitioning, installing Windows says it will copy the files in the file system. The first file is iaStor.sys. My SATA CD drive runs for a few seconds, then there is a long pause, then the OS says that it cannot copy the file iaStor.sys. He goes on to say that I should check that there is a CD in the drive. Any ideas?

Here's the solution to this problem:

1. in the disk driver (a:\) root directory create a directory called holiday of $ $OEM existing files as they are, we will not delete or replace anything.

2. in the directory $ $OEM you have created, create another directory called TEXTMODE

3. copy all the driver files located in the root directory to the A:\$OEM$\TEXTMODE subdirectory, try to reinstall, it should now work.

Update Windows XP SP3 is abandoned during the installation of UNIDRV. DLL and displays the message "the system cannot find the file specified."

When the update of Windows XP is install SP3, the sequence is abandoned at the location of the process. After you download the SP3, the progresses set install through the normal initialization sequence, inspection, creating list of 3rd drive part, backup files, etc., begins to install the files but when to reach the "UNIDRV. The installation of the file "DLL" stops and I get a message "the system cannot find the file specified". The close message will invalidate all the installation and possible automatic restart. I did not locate a UNIDRV. DLL file and copy it to my C:\ root directory but have tried almost everything in the 22/01/12 'terribrownQF' and the response "Tommy Stanley" 22/01/12 no change where the installation of SP3 crashes. Should I try to put the UNIDRV. DLL file on my computer? Any other ideas?

Please respond to each of the following diagnostic questions in a numbered list type in your very next answer (no need to quote this post):

1. What is the full name of your application or the installed antivirus security suite and when (date about) is your subscription current expires? What (other than Defender) anti-spyware applications are installed? What third-party firewall (if applicable)?

2 a Norton or McAfee application ALREADY installed on the computer?

3. do you have a free trial Norton or a test of free McAfee [CHOOSE ONE ANSWER] come preinstalled on the computer when you bought it? (No matter if you have never used or activated).

4. why has not been installed SP3 years? [1]

5. is Firefox, Chrome or any other alternative browser installed?

6. are you familiar with "Registry cleaners" (e.g., Registry Mechanic;) System Mechanic; RegCure; RegClean Pro. Advanced SystemCare. Registry Booster; McAfee QuickClean. AVG PC TuneUp. Norton Registry Cleaner; PCTools optimizer; SpeedUpMyPC; PC Doctor; TuneUp Utilities; WinMaximizer; WinSweeper; Comodo System Cleaner. Advanced System Optimizer. CCleaner)?

7 have you ever had the opportunity to do a repair install or clean install of Windows XP for some reason any?

=====================================================================
[1] note: support for WinXP SP2 ended the July 13, 2010! "Computers running WinXP SP2" will no longer receive software updates from Windows Update "[i.e., updated on and after August 2, 2010 so now that you're missing more than two years worth of updates to security critical! ] until SP3 has been installed.

I get an error "Setup cannot copy the file els.dll" during the installation of Service Pack 3.

The installation fails every time with this error. I can see and select the file in the temp folder, but it won't work. Any help would be appreciated. '

Original title: 'Setup cannot copy the file els.dll' during the upgrade to Windows XP SP2 to SP3.

In fact, I corrected it an hour ago and was meaning that close the message. I cleaned with CCleaner temporary files, downloaded the SP3 Installer on its own (no windows update) and disabled the antivirus. I was able to complete the installation.

Thanks for the reply!

Error: Windows Media Player cannot play the file. The player can not support the Codec that was used to compress the file, MP3 downloads will not play

Original title: MP3 downloads don't play no not on WMP

My Windows Media Player recently stopped playing downloads from Amazon. I've never had this problem before. I installed VLC Player, has not worked... off the WMP in the Windows app, restarted, turned on the back and restarted... did not help. I get the message "Windows Media Player cannot play the file. The player may not support the Codec used to compress the file. This is for multiple downloads, so I don't think they would be all corrupted files.

Hello

Have you done any software or changes to the material on the computer before this problem?

You mentioned that the files do not play on a third-party player as well. I suggest you to check if the files are corrupt.

Method 1:

How to Download Codecs automatically in Windows Media for Windows XP player

http://support.Microsoft.com/kb/291818

Method 2:

Resolution of the problems of reading in the Windows Media Player for Windows XP

http://support.Microsoft.com/kb/306317

Information on the types of media files that supports Windows Media Player

http://support.Microsoft.com/kb/316992

In addition, run the fixit from the link:

http://support.Microsoft.com/mats/windows_media_player_diagnostic/

Hope the information is useful.

Cannot mount the file, ClassCastException

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