GC Cause: 'Artifical: Cleaning up Finished Threads' (strange behaviour)

Hi everybody,
we have experiencing an strage issue after increasing our heap size and nursery in Production from
-Xms2816M -Xmx2816M -Xns550M to -Xms4096M -Xmx4096M -Xns1024M
We need to resize this because a new application is being promoted, and we have tested it in Pre-PRO
The thing is that after the new size and before deploying the new app,
all the 'Old Collection Reasons' are due to 'Artifical: Cleaning up Finished Threads' and the top of the HEAP (4GB) is never reached
A sample:
[gcpause][Wed Feb 27 22:29:26 2013][01719] [OC#621] [---] 1498,525 ms (611967,663000-611969,161000) OC
[gcpause][Wed Feb 27 22:29:26 2013][01719] [OC#621] [con] 0,004 ms (611967,663000-611967,663000) OC:PreGC
[gcpause][Wed Feb 27 22:29:26 2013][01719] [OC#621] [pau] 1453,742 ms (611967,663000-611969,116000) OC:Main
[gcpause][Wed Feb 27 22:29:26 2013][01719] [OC#621] [con] 43,411 ms (611969,118000-611969,161000) OC:PostGC
[memory ][Wed Feb 27 22:29:26 2013][01719] [OC#621] 611967,663-611969,161: OC 2982855KB->1227524KB (4194304KB), 1,499 s, sum of pauses 1453,742 ms, longest pause 1453,742 ms.
After examinig the correponding JFR we haven't any issue or hotspot in the code that could justify this behaviour, in fact the same that works right with 2,8 GB HEAP
Googling hasn't given us any answer and the Support mates are requiring us some more information, but they say this is normal (something that I don't agree at all)
Any suggestion will be welcome ... thanks in advance
We're running:
java version "1.5.0_26"
Java(TM) Platform, Standard Edition for Business (build 1.5.0_26-b03)
Oracle JRockit(R) (build R28.1.1-14-139783-1.5.0_26-20101206-0241-linux-x86_64, compiled mode)
and:
HT is: not supported by the CPU, not enabled by the OS, not enabled in JRockit.
CPU: Intel Core 2 SSE SSE2 SSE3 SSSE3 SSE4.1 Core Intel64
Vendor: GenuineIntel
Family: Core 2
Model: Core 2
Name: Intel(R) Xeon(R) CPU X7460 @ 2.66GHz
Sockets: 4
Cores: 24
HWThreads: 24
Supports: On-Chip FPU
Supports: Virtual Mode Extensions
Supports: Debugging Extensions
Supports: Page Size Extensions
Supports: Time Stamp Counter
Supports: Model Specific Registers
Supports: Physical Address Extension
Supports: Machine Check Exceptions
Supports: CMPXCHG8B Instruction
Supports: On-Chip APIC
Supports: Fast System Call
Supports: Memory Type Range Registers
Supports: Page Global Enable
Supports: Machine Check Architecture
Supports: Conditional Mov Instruction
Supports: Page Attribute Table
Supports: 36-bit Page Size Extension
Supports: the CLFLUSH Instruction
Supports: the Debug Trace Store feature
Supports: ACPI registers in MSR space
Supports: Intel Architecture MMX Technology
Supports: Fast Float Point Save and Restore
Supports: Streaming SIMD extensions
Supports: Streaming SIMD extensions 2
Supports: Self-Snoop
Supports: Hyper Threading
Supports: Thermal Monitor
Supports: Streaming SIMD Extensions 3
Supports: 64-bit DS Area
Supports: MONITOR/MWAIT instructions
Supports: Virtual Machine Extensions
Supports: Enhanced Intel SpeedStep technology
Supports: Thermal Monitor 2
Supports: Supplemental Streaming SIMD Extensions 3
Supports: CMPXCHG16B
Supports: xTPR Update Control
Supports: Perfmon and Debug Capability
Supports: Direct Cache Access
Supports: Streaming SIMD extensions 4.1
Supports: LAHF/SAHF instruction support
Supports: SYSCALL/SYSRET
Supports: Intel 64 Architecture
[memory ][Wed Feb 20 20:29:57 2013][01719] Running with 32 bit heap and compressed references supporting 32GB heap.
[memory ][Wed Feb 20 20:29:57 2013][01719] GC mode: Garbage collection optimized for throughput, strategy: Generational Parallel Mark & Sweep.

"as I understand GcTrigger only applis for concurrent GC, and in fact we are having genpar (parallel)"
Yep, "The garbage collector ignores the -XXgcTrigger value when it runs both parallel mark and parallel sweep, for example if you specify -Xgc:singlepar or -Xgc:genpar on the command line."
Why not set a dynamic collection scheme (http://docs.oracle.com/cd/E15289_01/doc.40/e15062/optionx.htm#i1011879):
throughput - The garbage collector is optimized for application throughput. This means that the garbage collector works as effectively as possible, giving as much CPU resources to the Java threads as possible. This might, however, cause nondeterministic pauses when the garbage collector stops all Java threads for garbage collection.The throughput priority should be used when non-deterministic pauses do not impact the application's behavior.
pausetime - The garbage collector is optimized for short pauses. This means that the garbage collection works concurrently with the Java application when necessary, in order to avoid pausing the Java threads. This inflicts a slight performance overhead to the application, as the concurrent garbage collector demands more system resources (CPU time and memory) than the parallel garbage collector that is used for optimal throughput. The target pause time is by default 500 msec. To change the default pause target, see -XpauseTarget.
On an application server going for throughput gives good results, when you want to reduce the stop-the-world times it might be beneficial to use pausetime with an appropriate pausetarget.
"...we need to increase HEAP size to cover application expectations"
It should be fine to increase the heap size (we are running JRockit with 16G in certain environments, with the pausetime as the dynamic garbage collection setting), i.e.,
-Xms16g -Xmx16g -Xns1024m -Xgc:pausetime -XpauseTarget:200ms (in this case the application contains a lot of session data which is placed in the old generation hence
the choice for 16G) as long as you keep the live data below 2/3 of the heap, the collection time introduced should be near the 200millis.
http://middlewaremagic.com/weblogic/?page_id=7132 (contains a bunch of posts on JVM tuning)

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BoBear2681 wrote:
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Holger

OK, here's what's going on.
Everything goes fine until main() exits.
At that point, mmdevapi.dll's DllMain is called with lpReserved set to a non-NULL value, which is to say, "don't bother to clean up."
mmdevapi.dll decides to clean up anyway (for shame) and calls into some SetupAPI.dll functions.
SetupAPI.dll is waiting on a critical section, but at that point ntdll.dll kicks in and says "you know what, the process is shutting down, and this is the last thread, so I can guarantee you this critical section will never be set." ntdll.dll then
terminates the process, and main()'s exit code is lost.
Matthew van Eerde

Safari 3.2.1 Strange Behaviour

This week Safari 3.2.1 is exhibiting very strange behaviour that I have never seen before. I can launch Safari and it opens my home page no problem. I can then access another page anywhere on the web, no problem. But then, if I click a link to open another web page (in same tab window) it says "Looking for server" and hangs. This includes trying to reopen my home page (which is a local file on my hard drive!). However, if I open another tab and then click another web link, it opens in the new tab window. But then it exhibits the same strange behaviour if I try to open another link in that new tab window. Then Safari hangs totally if I try to quit the program and have to use "Force Quit".
This behaviour is affecting my login only. The program works normally in other logins. I have tried deleting the .plist file in my home library but to no avail. I have deleted all caches as well (using "Reset Safari" command).
I am stumped and need advice on what may be causing this.
Thanks
Rudy

Reset system and user caches.
Download and run Onyx. Select Automation. Only check system and user caches in the cleaning section. Restart your computer.

Strange behaviour of 32bit app on 64bit OS

I have a piece of software developed by the company where I work , that is refusing to run on a couple of virtual Windows 7 (64bit) machines and a couple of client machines. (it should be noted, that it runs fine on my Win 7 x64 machine, and also
on a couple of 64bit laptops used by our Sales staff)
the machines in question are running Windows 7 Professional (x64)
The application I'm trying to run is a .NET4 based app (32bit)
Now this is where it gets strange.
On restoring a clean snapshot of my Win 7 machine, and installing my application , I will get clr.dll errors (which, I'm led to believe are generic .NET errors, usually indicating that there is a dependancy missing)
If I then launch the application in Compatability Mode (Win XP SP3) it works okay
If I then disable Compatability Mode (ie reverting the machine back to the state is was at step #1....the application continues to work fine (even after the virtual has been restarted/ shut down)
This would imply that all the pre-reqs are present (in this case .NET 4.x and VCRedist2010)
Whilst this is a workaround, it's just that, and I can't really tell my clients to do this on each machine that is going to be using our software (clients concerned enforce very strict Group Policies)
Any idea as to what could be causing this strange behaviour, and how I can get past this without the need for a workaround.

Hi,
Firstly, Please understand that third party software has its own way to program codes and call corresponding system resources when installing and running.
You may use the hotfix below to check the issue:
FIX: "Faulting module name: clr.dll" error message when you run a Microsoft .NET Framework 4-based application
http://support.microsoft.com/kb/2640103/en-us
clr.dll error usually occurs when a program crashes and is really generic.
Hope it helps.
Regards,
Blair Deng
Blair Deng
TechNet Community Support

APEX Listener and EPG - strange behaviour

Hi
For some years, I've used EPG for APEX but have struggled with performance particularly as I can have up to 150 student developers using at any one time.
I do a fair amount of work using ORDImage and have successfully developed APEX applications to upload image files and display full-size and thumbnail images.
After upgrading to APEX 4.1 (from 4.0), I decided to install APEX Listener standalone.
Before I did so I checked that my applications still worked in 4.1 and they did.
However, just installing APEX Listener but not configuring it (yet) has meant that my image display in a report using a procedure based on wpg_docload.download_file( l_ordimage_image.source.localData ) no longer works in EPG - the images are not displayed.
Configuring APEX Listener and running the same application through that DOES display the images.
So this part of the application works under APEX Listener but not under EPG.
My application also allows users to upload images from APEX_APPLICATION_FILES using standard code. Under APEX Listener after uploading, I'm left with a blank page with a wwv_flow.accept URL although the image does indeed upload. Under EPG it works as expected and I get a success confirmation.
So this part of the application works under EPG but not under APEX Listener.
Has anyone else come across different behaviour depending on the mode of connection?
Thanks
Brian
[Oracle EE 11gR2, Windows Server 2008R2, APEX 4.1, APEX Listener 1.1.3]

Hi Brian,
it sounds like you have both EPG and APEX Listener running on the same machine, so your problem might result from a port conflict. Note that both services use TCP port 8080 as default.
At least a port conflict would explain the strange behaviour in your case, some things working on one web server and some on the other.
Some parts of your initial post hint to that direction, e.g.
However, just installing APEX Listener but not configuring it (yet) has meant that my image display in a report using a procedure based on >wpg_docload.download_file( l_ordimage_image.source.localData ) no longer works in EPG - the images are not displayed.... because the APEX Listener only interfere with the EPG if it is at least running on the same machine as your database and furthermore, if it is unconfigured in terms of ist database connection, a port conflict might be the only way it could cause anything like that.
However, if you are sure that's not the issue, please check if you see any error in the APEX Listener's log for the following action you performed:
My application also allows users to upload images from APEX_APPLICATION_FILES using standard code. Under APEX Listener after uploading, I'm left with a blank >page with a wwv_flow.accept URL although the image does indeed uploadIf you actually see just a blank screen, something very bad must have happened and you should see some kind of stack trace there.
For further investigations, if necessary, it would be helpful to know how you deployed or started your APEX Listener and which JDK version you use.
For the moment, I still think the port conflict is my best guess.
You could avoid it by either changing the port for EPG (I'd not recommend that if you have other users still using it) or by changing the port for your APEX Listener.
-Udo

Strange behaviour of Runtime.getRuntime().exec(command)

hello guys,
i wrote a program which executes some commands in commandline (actually tried multiple stuff.)
what did i try?
open "cmd.exe" manually (administrator)
type "echo %PROCESSOR_ARCHITECTURE%" and hit enter, which returns me
"AMD64"
type "java -version" and hit enter, which returns me:
"java version "1.6.0_10-beta"
Java(TM) SE Runtime Environment (build 1.6.0_10-beta-b25)
Java HotSpot(TM) 64-Bit Server VM (build 11.0-b12, mixed mode)"
type "reg query "HKLM\SOFTWARE\7-zip"" returns me:
HKEY_LOCAL_MACHINE\SOFTWARE\7-zip
Path REG_SZ C:\Program Files\7-Zip\
i wrote two functions to execute an command
1) simply calls exec and reads errin and stdout from the process started:
public static String execute(String command) {
 String result = "";
 try {
 // Execute a command
 Process child = Runtime.getRuntime().exec(command);
 // Read from an input stream
 InputStream in = child.getInputStream();
 int c;
 while ((c = in.read()) != -1) {
 result += ((char) c);
 in.close();
 in = child.getErrorStream();
 while ((c = in.read()) != -1) {
 result += ((char) c);
 in.close();
 } catch (IOException e) {
 return result;
 }the second function allows me to send multiple commands to the cmd
public static String exec(String[] commands) {
 String line;
 String result = "";
 OutputStream stdin = null;
 InputStream stderr = null;
 InputStream stdout = null;
 // launch EXE and grab stdin/stdout and stderr
 try {
 Process process;
 process = Runtime.getRuntime().exec("cmd.exe");
 stdin = process.getOutputStream();
 stderr = process.getErrorStream();
 stdout = process.getInputStream();
 // "write" the parms into stdin
 for (int i = 0; i < commands.length; i++) {
 line = commands[i] + "\n";
 stdin.write(line.getBytes());
 stdin.flush();
 stdin.close();
 // clean up if any output in stdout
 BufferedReader brCleanUp = new BufferedReader(
 new InputStreamReader(stdout));
 while ((line = brCleanUp.readLine()) != null) {
 result += line + "\n";
 brCleanUp.close();
 // clean up if any output in stderr
 brCleanUp = new BufferedReader(new InputStreamReader(stderr));
 while ((line = brCleanUp.readLine()) != null) {
 result += "ERR: " + line + "\n";
 brCleanUp.close();
 } catch (IOException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 return result;
 }so i try to execute the commands from above (yes, i am using \\ and \" in java)
(1) "echo %PROCESSOR_ARCHITECTURE%"
(2) "java -version"
(3) "reg query "HKLM\SOFTWARE\7-zip""
the first function returns me (note that ALL results are different from the stuff above!):
(1) "" <-- empty ?!
(2) java version "1.6.0_11"
Java(TM) SE Runtime Environment (build 1.6.0_11-b03)
Java HotSpot(TM) Client VM (build 11.0-b16, mixed mode, sharing)
(3) ERROR: The system was unable to find the specified registry key or value.
the second function returns me:
(1) x86 <-- huh? i have AMD64
(2) java version "1.6.0_11"
Java(TM) SE Runtime Environment (build 1.6.0_11-b03)
Java HotSpot(TM) Client VM (build 11.0-b16, mixed mode, sharing)
(3) ERROR: The system was unable to find the specified registry key or value.
horray! in this version the java version is correct! processor architecture is not empty but totally incorrect and the reg query is still err.
any help is wellcome
note: i only put stuff here, which returns me strange behaviour, most things are working correct with my functions (using the Runtime.getRuntime().exec(command); code)
note2: "reg query "HKLM\HARDWARE\DESCRIPTION\System\CentralProcessor\0" /t REG_SZ" IS working, so why are "some" queries result in ERR, while they are working if typed by hand in cmd.exe?

ok, i exported a jar file and execute it from cmd:
java -jar myjar.jar
now the output is:
(1) "" if called by version 1, possible to retrieve by version 2 (no clue why!)
(2) "java version "1.6.0_10-beta"
Java(TM) SE Runtime Environment (build 1.6.0_10-beta-b25)
Java HotSpot(TM) 64-Bit Server VM (build 11.0-b12, mixed mode)"
(3) C:\Program Files\7-Zip\
so all three problems are gone! (but its a hard way, as i need both functions and parse a lot of text... :/ )
thanks for the tip, that eclipse changes variables (i really did not knew this one...)

Strange behaviour from new 2012R2 in old domain

Hi all,
At work (education level), I'm starting to take charge of windows admin, so beiing a noob admin I'm finding strange behaviours that I hope you can help me solve them all :-)
We've one (big) domain with about 5000 computers (workers and students all together), and around 50000 users (again, workers and students all together) setup like this:
DC-DOMAIN-1:
Windows Server 2008R2
Shares NETLOGON and SYSVOL
DC-DOMAIN-2:
Windows Server 2003 R2 x64
Shares CertEnroll, NETLOGON, SMSLOGON, SYSVOL
Checking RootDSE, I see 'domainControllerFunctionaly is Windows 2003' (DC-DOMAIN-2)
So, with this setup, I've noticed these strange behaviours, hope list isn't too big (guess there will be more behaviours but these seemed too odd):
1) On DC-DOMAIN-2, WinServer 2003 eventlog, inside 'Directory Service', I found this warning event ID 1083 (Source NTDS Replication):
Active Directory could not update the following object with changes received from the domain controller at the following network address because Active Directory was busy processing information.
Object:CN=<an user name>, CN=Users, DC=DOMAIN
Usually followed by an information event (eventid 1955) which says:
ctive Directory encountered a write conflict when applying replicated changes to the following object.
Object:
<SAME USER OBJECT THAN PREVIOUS EVENT ID>
Time in seconds:
0
Event log entries preceding this entry will indicate whether or not the update was accepted.
A write conflict can be caused by simultaneous changes to the same object or simultaneous changes to other objects that have attributes referencing this object. This commonly occurs when the object represents a large group with many members, and the functional level of the forest is set to Windows 2000. This conflict triggered additional retries of the update. If the system appears slow, it could be because replication of these changes is occurring.
User Action
Use smaller groups for this operation or raise the functional level to Windows Server 2003.
And having as result that user being blocked in domain.
2) I've added a new print server based on Windows Server 2012R2 (running inside an updated ESX 5.5 with VMXNET3 ethernet adapter as recommended by vmware), and seen in the event viewer these warnings/errors:
At System log:
Error Event ID 5783, Source NETLOGON:
The session setup to the Windows NT or Windows 2000 Domain Controller \\DC-DOMAIN-2.fulldns.name for the domain DOMAIN is not responsive. The current RPC call from Netlogon on \\PRINTSERVER to \\DC-DOMAIN-2.fulldns.name has been cancelled.
I've seen Event ID 5783 with DC-DOMAIN-1 too....
Error Event ID 5719, Source NETLOGON:
This computer was not able to set up a secure session with a domain controller in domain DOMAIN due to the following:
The remote procedure call failed and did not execute.
This may lead to authentication problems. Make sure that
this computer is connected to the network. If the problem persists, please contact your domain administrator.
ADDITIONAL INFO:
If this computer is a domain controller for the specified domain, it sets up the secure session to the primary domain controller emulator in the specified domain. Otherwise, this computer sets up the secure session to any domain controller in the specified domain.
At Microsoft-Windows-TerminalServices-RemoteConnectinoManager/Admin found also this warning:
Warning Event ID 20499 Source TerminalServices-RemoteConnectionManager:
Remote Desktop Services has taken too long to load the user configuration from server \\DC-DOMAIN-2.fulldns.name for user administrator
3) If I try Group Policy Modeling on DC-DOMAIN-1 (server 2008R2), everything works fine, no matter if I try it against DC-DOMAIN-1 or DC-DOMAIN-2, but if I try this from the Server 2012R2 (the one from point 2), I get this:
Simulation against DC-DOMAIN-2: Gets executed, but all GPO show as inaccessible, empty or disabled.
Simulation against DC-DOMAIN-1: Sometimes it gets executed as DC-DOMAIN-2, sometimes I get an error saying query can't be executed.
4) From server 2012R2, I usually manage printing GPO. If I click on the domain root (GPMC, forest, Domains, DOMAIN-NAME-ROOT) right pane, I get a pop up saying:
'A processing error ocurred collecting data using this base domain controller. Please change the base domain controller and try again'
After closing popup, right pane says something like 'DC-DOMAIN-2.fulldns.name' is the baseline domain controller for this domain.
No infrastructure Status information exists for this domain.
Click the Detect Now button below to gather infrastructure status from all of the domain controllers in this domain.
Pressing 'Detect Now' does nothing, and trying to select New Baseline DC shows again same pop up than before.
5) Last, but not least, I've feeling that GPO takes too much to apply. I've found scenarios in which even after executing 'gpupdate /force' correctly on client computer either local or domain admin, I can't see the new changes (gpresult says it has been
updated though). But couldn't find anything on eventlog that informs about problems with GPOs...
For all these strange behaviours I've noticed in last month that I started checking things as sys admin, I believe domain is damaged, or something is wrong there (not just my new server 2012R2, even if it's running inside an ESX, blehh), so please, any hint
on what to check, what to change, what to fix, would be highly appreciated.
Thanks in advance.

Hi Paul,
Honestly, I'm still trying to figure out all broken things reported by tests :( Guess Jesper's suggestion about adding a new 2008 DC to get rid of 2003 and start checking again after that may be best option.
I'll try to summarize list of things I believe are wrong:
running
DCDIAG /V /C /D /E /s:yourdcname > c:\dcdiag.log for every DC, shows different errors. They show things such as:
another domain running here (not administered by us, only relationship is that our users are shared with that domain, nothing else) appear when Printing out pDsInfo (as if they were DC of our domain too, but they do not even share RootDomain). Guess it
may be for a bug old sys admin had when clonning from his 2008R2 template, that forgot to change SID... I already noticed 1 year ago our print server shared SID with those DC, guess there may be more servers sharing SID too :-(
Within Starting test: Replications, I see few messages at Replication Latency Check, such as the one for CN=Schema, CN=Configuration, DC=<ourdomain>:
Latency information for 35 entries in the vector were ignored.
35 were retired Invocations. 0 were either: read-only replicas and are not verifiably latent, or dc's no longer replicating this nc. 0 had no latency information (Win2K DC)
On Services test, I see an
Invalid service type: RpcSs on DC-DOMAIN-3, current value
WIN32_OWN_PROCESS, expected value WIN32_SHARE_PROCESS
On SystemLog, I see LOTS of warnings/errors such as:
A warning event occurred. EventID: 0x80000002
Time Generated: 07/28/2014 08:21:54
(Event String (event log = System) could not be retrieved, error
0x503)
An error event occurred. EventID: 0xC0000003
Time Generated: 07/28/2014 08:22:18
(Event String (event log = System) could not be retrieved, error
0x3afc)
Missing entries on DNS (we've a static DNS)
netdiag.exe /v > c:\netdiag.log Showed again DNS problems such as our primary DNS pointing to all DC, secondary
DNS pointing just to DC with FSMO roles,...
repadmin.exe /showrepl * /verbose /all /intersite > c:\repl.txt Gave no errors, now I must check in detail
if every replica is correct
And finally,
dnslint /ad /s "ip address of your dc" gave more DNS problems:
One or more DNS servers may not be authoritative for the domain
One or more DNS servers did not respond to UDP queries
One or more zone files may have expired
SOA record data was unavailable and/or missing on one or more DNS servers
Sumarizing, guess it will be better to fix DNS problems, promote new 2008R2 DC to get rid of 2003 one, promote domain to 2008 too, check again for messages and relationship with other domain, and then come back here for support if needed
EDIT: Almost forgot to talk about SYSVOL folder. As said before, there are 426 GPO folders inside Policies. Of them, 375 have an inetres.adm files in it (smallest one 1398 KB, almost all of them 2307 or 2707 kb)....

Strange behaviour in Mail

I have ongoing strange behaviour with Mail in Mountain Lion on a MacBook Pro.
As well as randomly and intermitttently dropping connections to my various mail servers, I also, randomly and intermittently, fail to get to Print, or to create a new Mailbox, or to Quit. I just get a beep.
Have to quit Mail - sometimes forcibly, and restart it.
Mail will not automatically reconnect to servers after a Sleep , or moving to a differnt location.
None of this was happenning on an older MacBook, but I was running 10.7 on that machine.
Had to upgrade machine to allow upgrade to Mountain Lion. Not sure which is responsible - new MB PRo , or 10.8?!
Do I really have to re-install OSX just to reinstall Mail?
Any other pointers/hints very welcome.
Thanks

Please follow these directions to delete the Mail "sandbox" folder.
Back up all data.
Triple-click the line below on this page to select it:
~/Library/Containers/com.apple.mail
Right-click or control-click the highlighted line and select
Services ▹ Reveal
from the contextual menu.* A Finder window should open with a folder named "com.apple.mail" selected. If it does, move the selected folder — not just its contents — to the Desktop. Leave the Finder window open for now.
Log out and log back in. Launch Mail and test. If the problem is resolved, you may have to recreate some of your Mail settings. You can then delete the folder you moved and close the Finder window. If you still have the problem, quit Mail again and put the folder back where it was, overwriting the one that may have been created in its place. Post your results.
Caution: If you change any of the contents of the sandbox, but leave the folder itself in place, Mail may crash or not launch at all. Deleting the whole sandbox will cause it to be rebuilt automatically.
*If you don't see the contextual menu item, copy the selected text to the Clipboard (command-C). In the Finder, select
Go ▹ Go to Folder...
from the menu bar, paste into the box that opens (command-V). You won't see what you pasted because a line break is included. Press return.

Strange behaviour on text insert into a HTML pane

Hi all,
I am trying to fix a problem on inserting a span tag into an existing html page (in an EDITABLE JEditorPane).
The behaviour:
Assuming the cells in a table (3 rows, 2 columns) are numbered from 1 to 6, with cell one being the top left most, cell 2 top right, cell 3 middle left, etc.
1. Inserting the text "" in cell 4 causes during any attempt to later type into cell 5 the characters to be appended instead into cell 4, directly after the close span tag.
2. The insertion in the first place behaves strange. If I have the caret positioned for cell 5 so that I can insert there
(via the function void javax.swing.text.html.HTMLEditorKit.insertHTML(HTML Document doc, int offset, String html, int popDepth, int pushDepth, Tag insertTag) )
even though the caret position is visible in cell 5, the insertion seems to take place in cell 4.
I can sort of compensate for this by adding 1 to the offset. However, then when inserting into a line of text, for example, "the quick red fox jumped over the lazy dog"
I insert directly before the 'j' in 'jumped', the insertion looks like this "the quick red fox j..umped over the lazy dog"
So that is no solution.
IMPORTANT! Just to prove it is not the span tag causing the trouble, if this span tag already exists in a cell on 'Load' of the html file, the strange behaviour is not observed.
Something is going wrong here. It is me? Or is it a bug?
Please help!!
Here is a test app, and the test html you can use (place in current directory).
Please test like this:
1. run application (the html should be loaded into the pane)
2. the span tag is programmed to automatically insert at cell 4 (by using the +1 method on the insert)
3. another span tag was already existing in the html file, at cell 8
4. Attempt to type into cell 5
result: the text appears instead at cell 4
5. Type into cell 9
result: the text correctly is entered into cell 9
See the difference!!
Help!
The test java app:
package small.test;
import java.awt.BorderLayout;
import java.awt.Container;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.StringReader;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.SwingUtilities;
import javax.swing.text.JTextComponent;
import javax.swing.text.html.HTML;
import javax.swing.text.html.HTMLDocument;
import javax.swing.text.html.HTMLEditorKit;
import javax.swing.text.html.parser.ParserDelegator;
public class HtmlInsertTest extends JEditorPane
 public HtmlInsertTest()
 public static void main(String args[])
 JFrame frame = new JFrame("Loading/Saving Example");
 Container content = frame.getContentPane();
 frame.setSize(600, 600);
 final HtmlInsertTest editorPane = new HtmlInsertTest();
 editorPane.setEditable(true);
 JScrollPane scrollPane = new JScrollPane(editorPane);
 content.add(scrollPane, BorderLayout.CENTER);
 editorPane.setEditorKit(new HTMLEditorKit());
 JPanel panel = new JPanel();
 content.add(panel, BorderLayout.SOUTH);
 frame.setSize(600, 600);
 doLoadCommand(editorPane);
 editorPane.insertHTML("inserted text", 84);
 frame.setVisible(true);
 public static String getHTML()
 return
 "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\">"+
 "<HTML>"+ "<HEAD>"+
 " <META HTTP-EQUIV=\"CONTENT-TYPE\" CONTENT=\"text/html; charset=utf-8\">"+
 " <TITLE></TITLE>"+
 "</HEAD>"+
 "<BODY LANG=\"en-AU\" DIR=\"LTR\">"+
 "This is a test xhtml document. "+
 " "+
 " "+
 " "+
 " Here is a table:"+
 " "+
 " "+
 " "+
 " <TABLE WIDTH=100% BORDER=1 BORDERCOLOR=\"#000000\" CELLPADDING=4 CELLSPACING=0>"+
 " <TR VALIGN=TOP>"+
 " <TD WIDTH=50%>"+
 " It has"+
 " </TD>"+
 " <TD WIDTH=50%>"+
 " 2 columns"+
 " </TD>"+
 " </TR>"+
 " <TR VALIGN=TOP>"+
 " <TD WIDTH=50%>And 4 rows</TD>"+
 " <TD WIDTH=50%></TD>"+
 " </TR>"+
 " <TR VALIGN=TOP>"+
 " <TD WIDTH=50%></TD>"+
 " <TD WIDTH=50%></TD>"+
 " </TR>"+
 " <TR VALIGN=TOP>"+
 " <TD WIDTH=50%></TD>"+
 " <TD WIDTH=50%>existing text</TD>"+
 " </TR>"+
 " <TR VALIGN=TOP>"+
 " <TD WIDTH=50%></TD>"+
 " <TD WIDTH=50%></TD>"+
 " </TR>"+
 " </TABLE>"+
 " "+
 " "+
 " "+
 " "+
 " "+
 " "+
 " We will test the drag and drop"+
 " functionality with this document. "+
 " "+
 " It will be loaded with the hlml editor."+
 " "+
 " "+
 " "+
 " "+
 " </BODY>"+
 " </HTML>";
 public static void doLoadCommand(JTextComponent textComponent)
 StringReader reader = null;
 try
 System.out.println("Loading");
 reader = new StringReader(getHTML());
 // Create empty HTMLDocument to read into
 HTMLEditorKit htmlKit = new HTMLEditorKit();
 HTMLDocument htmlDoc = (HTMLDocument)htmlKit.createDefaultDocument();
 // Create parser (javax.swing.text.html.parser.ParserDelegator)
 HTMLEditorKit.Parser parser = new ParserDelegator();
 // Get parser callback from document
 HTMLEditorKit.ParserCallback callback = htmlDoc.getReader(0);
 // Load it (true means to ignore character set)
 parser.parse(reader, callback, true);
 // Replace document
 textComponent.setDocument(htmlDoc);
 System.out.println("Loaded");
 catch (Exception exception)
 System.out.println("Load oops");
 exception.printStackTrace();
 finally
 if (reader != null)
 reader.close();
 public void insertHTML(String text, int offset)
 SwingUtilities.invokeLater(new insertAction(this, text, offset));
 class insertAction implements Runnable
 String text = "";
 int offset = 0;
 JEditorPane jEditorPane1 = null;
 public insertAction(JEditorPane _jEditorPane1, String _text, int _offset)
 jEditorPane1 = _jEditorPane1;
 text = _text;
 offset = _offset;
 @Override
 public void run()
 HTMLDocument doc = (HTMLDocument)jEditorPane1.getDocument();
 HTMLEditorKit kit = (HTMLEditorKit)jEditorPane1.getEditorKit();
 try
 System.out.println("reading from string reader");
 kit.insertHTML( doc,
 offset,//+1
 text,
 0,//0
 0,//0
 HTML.Tag.SPAN);
 System.out.println(jEditorPane1.getText());
 catch (Exception e)
 System.out.println("error inserting html: " + e);
}Edited by: svaens on Jul 16, 2009 6:34 PM
fix another stuffed up attempt at a SSCCE.

Well, I know nothing about HTML in JEditorPanes. I have never been able to figure out how insertions work.
My comment was a warning to others. Some people (like me) avoid answering posting of this type for reasons given in the JavaRanch link. Others will answer anyway. Other might first check the other site to see if they are wasting there time, but they can only do that if a link was posted with the original question.
The only suggestion I have is to repost the question, (since this posting is now completely off topic) making sure to then respond to this posting stating that a fresh question has been asked so you don't get a discussion going on in two places.

GC Cause: 'Artifical: Cleaning up Finished Threads' (strange behaviour)

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