PROOF ! Classes can be unloaded from the JVM.. do you agree????

this post shows you can unload a class from the JVM... do you agree?
http://forum.java.sun.com/thread.jsp?forum=4&thread=327315&tstart=0&trange=15

If you say "effectively", I would agree. Once the old classloader, the old class, and all old class instances are no longer reachable, then for all intents and purposes (except memory consumption) it is unloaded.
Of course, it's up to the JVM implemention to decide whether (if at all) and when to gc that stuff.

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Oracle.oc4j.sql.managedconnectionimpl objects are not cleared from the JVM

One of our customer is facing the outofmemory issue, when they connect many users and they go ideal for some times, without doing any operation on the server and when they come back and connect they get Out of memory issue.
For that i just profiled my application and i can see the following objects never get cleared from the JVM.. Following objects not GC.
oracle.oc4j.sql.spi.managedconnectionimpl
oracle.oc4j.sql.xa.iccxaconnection
oracle.oc4j.sql.spi.connectionrequestinfoimpl
oracle.oc4j.sql.managedconnectionimpl
oracle.oc4j.sql.spi.Txstate
oracle.jdbc.driver.logicconnections
We do have a pooling timer running at the back end.
Please suggest is there any why i can make these connections Garbage collected when they are not in use? is there any setting for in oc4j for that?
Thank you

One of our customer is facing the outofmemory issue, when they connect many users and they go ideal for some times, without doing any operation on the server and when they come back and connect they get Out of memory issue.
For that i just profiled my application and i can see the following objects never get cleared from the JVM.. Following objects not GC.
oracle.oc4j.sql.spi.managedconnectionimpl
oracle.oc4j.sql.xa.iccxaconnection
oracle.oc4j.sql.spi.connectionrequestinfoimpl
oracle.oc4j.sql.managedconnectionimpl
oracle.oc4j.sql.spi.Txstate
oracle.jdbc.driver.logicconnections
We do have a pooling timer running at the back end.
Please suggest is there any why i can make these connections Garbage collected when they are not in use? is there any setting for in oc4j for that?
Thank you

Windows Easy Transfer (WET) Issues with External Hard Drive - "Can't read from the source file or disk"

I work for Office Depot, in the tech department. Basically, one of our associates was supposed to do a data backup, and re-install Windows 7, then transfer the files back. He used Windows Easy Transfer and compacted everything into a 163 GB file.
Now comes the hard part. When we try to put it back on his computer ((drag-and-drop to the desktop) which has been wiped back to factory settings using the recovery partition), it stops at 79.5 GB remaining (you know how it doesn't give you a % of completion,
it just shows how many GB are remaining) and then says "Can't read from the source file or disk" and gives you an option to try again, or cancel. It gets hung up on the same point each time.
Normally, this wouldn't be a huge issue, but the contents on the drive are his wife's architect blueprints and interior design stuff, along with wedding photos, etc, which are the only copies they have. On top of those, they have court documents and other
important files that we are unable to access now.
I wasn't involved with this transfer, so I'm trying to clean up the mess as best I can. I remembered that the customer's wife was Russian, and had some files typed with a Russian keyboard, so on and so forth. I wonder if that's the issue? If not, I really
have no idea how to manually extract things from a ".mig" file, or how to diagnose what area is potentially corrupted.
In light of this situation, we tried using "Recuva" to recover the files post-wipe, but everything was corrupted or unable to be opened, and it also extracted and recovered all of the "useless" photos, such as the skype logos, up and
down arrows for browsers, etc (it was 160,000+ photos).
Trying to avoid a potential lawsuit, unhappy customer, and costing the company lots of money to see if professionals can get into this external hard drive.
Other relevant information:
We used a Toshiba 500 GB (465 GB) external hard drive.
Customer's computer is an HP Pavilion P6000 Series (Model No. p6520y) running Windows 7 Home Premium 64-bit Service Pack 1.
Any other information that is needed can be provided, thanks in advance, and hopefully we can find a solution to this issue quickly!
-John

I think there's a lack of understanding somewhere.
"If you even can't start the process, please unplug it from your new PC. Then head back to your new computer and plug
the external drive back in to your new computer. "
Unplug from new, head back to new, plug it back in? That doesn't make much sense! Haha.
I knew what you meant though, somewhat. When I search through the drives after clicking yes (Has windows easy transfer
already saved your files blah blah blah) I click on the transfer file and it says "Windows Easy Transfer could not open the file".
Rather than drag-and-drop the file to the desktop, I now tried to double-click on the file itself while it was plugged
into the computer. It opened, and it started transferring until it was about 70% completed, and then an error popped up saying "WET can't open the easy transfer file, make sure your USB device is plugged in or check your internet connection".
I checked, and the USB hard drive's light wasn't on. Now, I unplug it and plug it back in, and the light comes back on,
so I click Retry, and it resets the bar back to nothing and says "Transfer time: 1 minute".
Rather than continue trying, I clicked "Cancel" instead of Retry, and it says "Your transfer did not complete successfully."
It says to click "view report" for more information, but there's no "view report button".
At the moment, I am scanning the External Drive for bad sectors using the check disk tool in properties. It's frozen
at "0 USN bytes processed".

TS3276 I cannot connect to my outgoing email server on my macBook pro, yet I can, for the same email account on my iPad. Also I can send emails from the other email account I have on my MacBook...really confused can anyone help?

I cannot connect to my outgoing email server on my macBook pro, yet I can, for the same email account on my iPad. Also I can send emails from the other email account I have on my MacBook...really confused can anyone help?

Sometimes deleting the account and then re-creating it can solve this issue
Write down all the information in accounts before doing this
Highlight the account on the left and click the minus button
Then click the plus button to add the new account and follow the prompts

I can not purchase from the iTunes store because of the security question I am I do not know your security question and alternative mail has been hacked

I can not purchase from the iTunes store because of the security question I am I do not know your security question and alternative mail has been hacked

You need to contact Apple. Click here, phone them, and ask for the Account Security team.
(87808)

Can I stream from the same iTunes account to 2 Apple Tv's in 2 different locations?

I currently have 1 Apple TV device at home. I'm thinking of buying a second one to keep in my office at work across town. My concern is this: my kids love streaming purchased movies and TV shows at home during the day while out of school. Will I be able to stream content purchased on the same iTunes account at the same time while I'm at work and my kids are at home watching on my first ATV device?
I know ATV isn't that expensive, but I would like to avoid duplicating purchases on a new iTunes account just so both locations can be streaming at the same time. Anybody know if this is possible?
Thanks ahead of time.

Yes. I would like to know if I can stream content from the apple store on both Apple TV devices simultaneously. Not from a computer, but items purchased from the Apple store on my first Apple TV device.
Thanks for the reply!

How do I get my macbook pro to recognize my android phone so I can transfer photos from the phone

how do I get my macbook pro to recognize my android phone to I can transfer photos from the phone

you could try this:
http://www.android.com/filetransfer/
there's something called "Airdroid" on the Play store (whatever that is)
or if your files are on an sd card, you may wish to use an sd card reader. Just plugging it in via USB might possibly work. There's also something called DoubleTwist (basically iTunes for Android, which will allow you to
sync your music , photos, videos, etc
hope one of these works for you
John B

I am attempting to have cells use data from a selective month from the year before so that I can show actual from the prio. years each month.

I am attempting to have cells use data from a selective month from the year before so that I can show actual from the prio. year each month. I need to create a spreedsheet using the the Acutlas from the year-to-date and from last year-to-date, but need to report each month.

Hi Tony,
Answering your question would be easier given a screen shot of the source table and one of what you want the summary table to look like.
Is the data you want for each month in a single cell o the source table, or does the summary table need to collect February's data (for example) from several cells and do some math with those numbers before presenting them on the summary table?
Regards,
Barry

After update to Snow Leopard, I can no longer print from my Mac Book using my HP D110 but can still print from the web

Hello -
Earlier this week, I updated my Mac Book to Snow Leopard and am now having printing problems. I have an HP Photosmart D110. I have downloaded and installed the driver update. I have deleted and re-installed the printer. I have run the wireless network test (everything passed). I configured th settings on the HP EPrint website. I have shut down and re-started the computer several times. I checked for software updates.
The printer is *recognized* on the Mac Book, iPhone and the iPad. It shows up under the SysPref menu. I have been able to print coupons from the Coupons.com app using the iPhone and iPad, but I can't print from the computer itself. The printer icon opens and it indicates the document was sent but nothing comes out. I'm not sure what I'm missing?!

http://support.apple.com/kb/DL907
Also try powering the printer off for about 10 minutes.

Itunes and all my movies have disappeared,i can no longer add to library from my external hdd which ive always used and can only add from the laptops own hard drive,any ideas what the issue could be?

ive recently updated, itunes and all my movies have disappeared,i can no longer add to library from my external hdd which ive always used and can only add from the laptops own hard drive,any ideas what the issue could be?if i transfer the movies from the external to the laptop they will add to the library without any problem so theres no issue with the laptop but when i go to add file in itunes i can path to the external but as soon as i select the file nothing happens, just goes back to itunes

This happens if the file is no longer where iTunes expects to find it. Possible causes are that you or some third party tool has moved, renamed or deleted the file, or that the drive it lives on has had a change of drive letter. It is also possible that iTunes has changed from expecting the files to be in the pre-iTunes 9 layout to post-iTunes 9 layout,or vice-versa, and so is looking in slightly the wrong place.
Select a track with an exclamation mark, use Ctrl-I to get info, then cancel when asked to try to locate the track. Look on the summary tab for the location that iTunes thinks the file should be. Now take a look around your hard drive(s). Hopefully you can locate the track in question. If a section of your library has simply been moved, or a drive letter has changed, it should be possible to reverse the actions.
Alternatively, as long as you can find a location holding the missing files, then you should be able to use my FindTracks script to reconnect them to iTunes .
tt2

Can't print from the web

no matter what i do i can not get any part of a web page to show up in "print preview" and therefore I can not print from the web. Using an HP Officejet Pro L7580 All in one, running Vista 32 bit, and IE 9. Have already uninstalled and reinstalled printer, drivers, etc. Any ideas?

Hi there I hope you are doing well and sorry to learn that you are having this issue;
when you reinstalled the printer did you download the latest driver,firmware from the HP site? If you did not GO HERE.
This the main support page of your printer if you need it in the future;
http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?cc=us&dlc=en&lang=en&lc=en&product=2512008&task=&
Please download and run the HP print and scan doctor .
Let me know if this finds any errors, I will do my best ot help you if you need further assistance.
Hope this helps!
RobertoR
remember ~▼
You can say THANKS by clicking the KUDOS STAR. If my suggestion resolves your issue Mark as a "SOLUTION" this way others can benefit Thanks in Advance!

Disk repair failed how can I back up my files when I can't boot from the start up disk

When disk repair fails, and I can't boot from the hard drive how can I get to my files to back them up. I have a seagate 1 TB connected to the USB port.

Perubbit,
which model MacBook Pro do you have, and which version of OS X is installed on it?

I need to wipe my computer can i reboot from the app store

Hi,
I need to wipe my computer iMac 3.06 Ghz Intel Core 2 Duo and start fresh. How do I reboot? Can I reboot from the App Store (Mavericks)?
Any help would be appreciated
Chhers
Bill

You would reboot from the recovery partition. Hold cmd-R as you reboot (hold the keys down when the screen goes black and keep them held until you see the Apple logo). From there, run Disk Utility to wipe the drive, and follow the "Install OS X" prompts to reinstall the system.
Matt

HT1595 I have 2 Apple TV's one the oldest works fine the 2nd one refuses to recognise the MacBook Pro its connected to but I can play media from the MacBook on the Apple TV from iTunes, help?

I have 2 Apple TV's one the oldest works fine the 2nd one refuses to recognise the MacBook Pro its connected to but I can play media from the MacBook on the Apple TV from iTunes, help?

Sorry, content bought with one Apple ID cannot be merged or transferred to another Apple ID.

Does anyone know how to use pages so you can export pdfs from the internet and automatically drag words from the document into the file name of the pdf (i.e., author, title of a scientific paper)

Does anyone know how to use pages so you can export pdfs from the internet and automatically drag words from the document into the file name of the pdf (i.e., author, title of a scientific paper). For example, if I am downloading a paper by smith called "Surgery" that was published in 2002, it will automatically set the file name in the download to smith- surgery 2002. I have heard pages is smart enough to do this.
thank you

Pages can export only its own documents. They may be exported as PDF, MS Word, RTF or Text files.
Pages can import (ie. Open a file as, or Insert a file into, a Pages document) documents in several formats, but won't rename the document as you describe. Documents that can be Opened (eg. Text, AppleWorks 6 WP, MS Word files) are converted to Pages documents, and retain their original names, with .pages replacing the original file extension. Files that can be Inserted (generally .jpg, .pdf and other image files) become part of the existing Pages file and lose their names.
It may be possible, using AppleScript, to extract the text you want and to Save a Pages file using that text as the filename, but that would depend in part on being able to identify which text is wanted and which is not.
How will the script determine where the author's name begins and where it ends?
How will the script recognize the beginning and of the title, an decide how much of the title to use in the filename?
How will the script recognize the year of publication?
For papers published in a specific journal, with a strict format for placing each of these pieces on information, or containing the needed information as searchable meta data in the file, this might be possible. But it would require knowledge of the structure of these files, and would probably handle only papers published in a specific journal or set of journals.
Outside my field of knowledge, but there are some talented scripters around here who might want to take a closer look.
Best of luck.
Regards,
Barry

PROOF ! Classes can be unloaded from the JVM.. do you agree????

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