1.6.0_05 JDK hangs periodically on Solaris 9

Hi,
We currently got a customer, where application server had to be installed to Solaris 9 system and we've got a problem, that entire JVM hangs permanently sometimes, usually under a heavy load. This happens with 1.6.0 JDK (as our product requires 1.6 as minimum version). The same JDK and application never raised similar problem in version 10 of Solaris.
So, are there any official or non-official recommendations on JDK 1.6 and Solaris 9 compatibility and/or recommendations on such pair ?
Our application server is self-contained WAR file, running under Jetty or under external web container, if this does matter. We've played with several GC algorithms and options, but never get a stable result. Usually, hang occurs one-twice per week and typically under a heavy load (large number of users, connecting to the server and initiating server to fire various SQL read/update requets via Hibernate).
Thanks,
Dmitri

Hi Leah,
Have you tried double clicking?
If this doesn't solve the issue, you might want to try using a different version of the browser and disable the pop up blocker on your browser.
Please try this out and let me know.
Regards
Mazin

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Thanks Henrik. My question is for the same customer that Alex K. was asking about.
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Downgrading JDK of a remote Solaris to install WebLogic Server 10.0

Hello all,
I've been assigned a virtual machine at my intern that needs WebLogic installed on it as part of my training. While going through WebLogic 10.0 compatibility notes in the Oracle website I have found that it requirea a 1.5 JDK while the Solaris machine is running the following:
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"...only compatible with JDK 1.5 (5.0 and later)."
I think this would include 1.6 too (5 and later).
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What you do is from this software you create a domain (which is still software). When you create
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export WL_HOME
BEA_JAVA_HOME="/location/jrockit_160_24_D1.1.2-4"
export BEA_JAVA_HOME
SUN_JAVA_HOME="/location/some_version_of_the_JDK"
export SUN_JAVA_HOME
# added JAVA_VENDOR property
JAVA_VENDOR="Oracle"
export JAVA_VENDOR
# added USER_MEM_ARGS, which override the memory settings
# the following shows a JRockit example
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export USER_MEM_ARGS
# the following shows a (Sun) HotSpot example
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#export USER_MEM_ARGS
if [ "${JAVA_VENDOR}" = "Oracle" ] ; then
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else
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Copy the new JDK files to the Solaris machine (you could probably also you something like winscp (http://winscp.net/eng/index.php) when
you copy the files from a Windows machine).
Install the JDK (usually a JDK to be installed on Solaris constists of two steps install 32bits than install 64 bits)

Programme works on Windows hangs on Sun Solaris(8) 5.8

The programme works fine on Windows but hangs on Solaris 8(5.8).
The programme hangs after processing of files is done .
Yes my programme has Synchronization and threading.
The code waits on a method.
engine.GetName().equalsIgnoreCase(name)
the GetName is Synchronized method , if i remove that synchronization it waits on the next synchronizatoin.
It seems like the locks on the Synch code are not getting released.
The same programee does not hang on some solaris machines but takes almost 8--9 minutes to exit from that piece of code and safe shutdown of the process on similar configuration machine.
1)My Question is it a patch issue ,If yes what are the patches I should have for sun solaris8(5.8)
2)Anything to do with the Environ??
3)The compilation etc??
Let me know your answers I can definitely provide more Clues.
Ani

The programme works fine on Windows but hangs on
Solaris 8(5.8)....And this leads you to believe it must be the OS fault and not your code's fault?
Maybe you have a race/deadlock condition that just so happens to manifest itself when you run it on Solaris because of different processor timing. I'm suggesting maybe it could also hang on Windows, given the right timing condition.

JDK 1.6 on Solaris. Multiple java processes and thread freezes

Hi, we've come across a really weird behavior on the Solaris JVM, reported by a customer of ours.
Our server application consists of multiple threads. Normally we see them all running within a single Java process, and all is fine.
At some point in time, and only on Solaris 10, it seems that the main Java process starts a second Java process. This is not our code trying to execute some other application/command. It's the JVM itself forking a new copy of itself. I assumed this was because of some JVM behaviour on Solaris that uses multiple processes if the number of threads is > 128. However at the time of spawn there are less than 90 threads running.
In any case, once this second process starts, some of the threads of the application (incidentally, they're the first threads created by the application at startup, in the first threadgroup) stop working. Our application dumps a list of all threads in the system every ten minutes, and even when they're not working, the threads are still there. Our logs also show that when the second process starts, these threads were not in the running state. They had just completed their operations and were sleeping in their thread pool, in a wait() call. Once the second process starts, jobs for these threads just queue up, and the wait() does not return, even after another thread has done a notify() to inform them of the new jobs.
Even more interesting, when the customer manually kills -9 the second process, without doing anything in our application, all threads that were 'frozen' start working again, immediately. This (and the fact that this never happens on other OSes) makes us think that this is some sort of problem (or misconfiguration) specific to the Solaris JVM, and not our application.
The customer initially reported this with JDK 1.5.0_12 , we told them to upgrade to the latest JDK 1.6 update 6, but the problem remains. There are no special JVM switches (apart from -Xms32m -Xmx256m) used. We're really at a dead end here in diagnosing this problem, as it clearly seems to be outside our app. Any suggestion?

Actually, we've discovered that that's not really what was going on. I still believe there's a bug in the JVM, but the fork was happening because our Java code tries to exec a command line tool once a minute. After hours of this, we get a rogue child process with this stack (which is where we are forking this command line tool once a minute):
JVM version is 1.5.0_08-b03
Thread t@38: (state = IN_NATIVE)
- java.lang.UNIXProcess.forkAndExec(byte[], byte[], int, byte[], int, byte[], boolean, java.io.FileDescriptor, java.io.FileDescriptor, java.io.FileDescriptor) @bci=168980456 (Interpreted frame)
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- java.lang.UNIXProcess.<init>(byte[], byte[], int, byte[], int, byte[], boolean) @bci=62, line=53 (Interpreted frame)
- java.lang.ProcessImpl.start(java.lang.String[], java.util.Map, java.lang.String, boolean) @bci=182, line=65 (Interpreted frame)
- java.lang.ProcessBuilder.start() @bci=112, line=451 (Interpreted frame)
- java.lang.Runtime.exec(java.lang.String[], java.lang.String[], java.io.File) @bci=16, line=591 (Interpreted frame)
- java.lang.Runtime.exec(java.lang.String, java.lang.String[], java.io.File) @bci=69, line=429 (Interpreted frame)
- java.lang.Runtime.exec(java.lang.String) @bci=4, line=326 (Interpreted frame)
- java.lang.Thread.run() @bci=11, line=595 (Interpreted frame)There are also several dozen other threads all with the same stack:
Thread t@32: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException: can't map thread id to thread handle!
     at sun.jvm.hotspot.debugger.proc.ProcDebuggerLocal.getThreadIntegerRegisterSet0(Native Method)
     at sun.jvm.hotspot.debugger.proc.ProcDebuggerLocal.getThreadIntegerRegisterSet(ProcDebuggerLocal.java:364)
     at sun.jvm.hotspot.debugger.proc.sparc.ProcSPARCThread.getContext(ProcSPARCThread.java:35)
     at sun.jvm.hotspot.runtime.solaris_sparc.SolarisSPARCJavaThreadPDAccess.getCurrentFrameGuess(SolarisSPARCJavaThreadPDAccess.java:108)
     at sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)
     at sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:211)
     at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:50)
     at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
     at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
     at sun.jvm.hotspot.tools.JStack.main(JStack.java:58)I'm pretty sure this is because the fork part of the UnixProcess.forkAndExec is using the Solaris fork1 system call, and thus all the Java context thinks all those threads exist, whereas the actual threads don't exist in that process.
It seems to me that something is broken in UnixProcess.forkAndExec in native code; it did the fork, but not the exec, and this exec thread just sits there forever. And of course, it's still holding all the file descriptors of the original process, which means that if we decide to restart our process, we can't reopen our sockets for listening or whatever else we want to do.
There is another possibility, which I can't completely rule out: this child process just happened to be the one that was fork'd when the parent process called Runtime.halt(), which is how the Java process exits. We decided to exit halfway through a Runtime.exec(), and got this child process stuck. But I don't think that's what happens... from what I understand that we collected, we see this same child process created at some point in time, and it doesn't go away.
Yes, I realize that my JVM is very old, but I cannot find any bug fixes in the release notes that claim to fix something like this. And since this only happens once every day or two, I'm reluctant to just throw a new JVM at this--although I'm sure I will shortly.
Has anyone else seen anything like this?

OS 4.5- Device hangs periodically

Hello,
I just upgraded to the Rogers version of the OS 4.5 for the Curve (8310)... Now the device appears hang or freeze for up to 10 minutes at a time... Periodically the device screen hangs or freezes and unless you pull the battery there is no way to get the screen to respond... If you wait about 10 minutes the device will start again... This appears to happen for most applications (IE I can be listening to music and the device will stop for about 10 minutes after playing 2-3 songs and then continue playing.. It also freezes on the main screen when the device is locked)... It has not frozen yet while I'm actually typing an e-mail... It almost appears that the device is doing something in the back ground like scanning a SIM card or responding to some OS request...
I had noted from one of the other forums that this could be due to a SIM card so I reformatted the card and reloaded the music and files back to the blackberry...
Any ideas on what this could be and how to stop it...
Thanks

I am betting you upgraded the OS to 4.5, and you have a Media Card in the device, and the OS is constantly rescanning the Media Card. Common issue for a few after an OS 4.5 upgrade..
Remove your Media Card, first, reboot and your BB should be fine.
Then read this on how fix the Media Card (courtesy of John Clark, another expert here in the Forum)
1. Removed the Media Card from the device and put in a card reader. This makes the rest of the process much quicker. However, you can do it with the card in the device.
2. Copy the entire contents of the card to your PC.
3. Put the card back in the device and go to Options >Media Card >Menu key >Format Card. This will wipe the card and reformat it. (if using a card reader remove the card and put it back in the reader.)
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5. When finished put the card back in the device and try the Media App again. It should scan for music. If you have lots of music it can take 5-10 minutes. During scanning you can open the Music app and you should be able to see the songs moving around in the list as the device scans
If after transferring all your files back you still get a stuck scanning bar or device reboots then you have a conflicting file on the card. I've seen video files do this but it could be a music file too or (less likely) a picture file. Remove all the files you transferred and see if the reboots stop. Then add back each folder one at a time to see if you can narrow down to the folder that's causing it. Once you find the folder then you can narrow down to a particular file.
1. If any post helps you please click the below the post(s) that helped you.
2. Please resolve your thread by marking the post "Solution?" which solved it for you!
3. Install free BlackBerry Protect today for backups of contacts and data.
4. Guide to Unlocking your BlackBerry & Unlock Codes
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Java 1.4.2 hang on intel-Solaris

We are using several machines to build and for some reason, javac 1.4.2 is
hanging today (I'm not aware of any changes that would affect this) on intel-Sol.
1.5 seems to work ok (but a little slow). Here's the truss...
1408/1: lwp_cond_wait(0x08071248, 0x08071230, 0x00000000, 0) (sleeping.. .)
1408/1: Received signal #20, SIGWINCH, in lwp_cond_wait() [default]
1408/1: lwp_cond_wait(0x08071248, 0x08071230, 0x00000000, 0) = 0
1408/1: lwp_cond_wait(0x08071248, 0x08071230, 0x00000000, 0) (sleeping...)
and pstack (from a different run)...
2222: [.../javac -version]
----------------- lwp# 1 --------------------------------
bff50977 lwp_cond_wait (8071248, 8071230, 0, 0)
bfa7bca7 _1cHMonitorEwait6Mil_i (8071200, 0, 0) + 275
bfa2d3ae _1cHThreadsJcreate_vm6FpnOJavaVMInitArgs__i (8047280) + 1de
bfa2d0cb JNI_CreateJavaVM (8047ac4, 8047ac8, 8047280) + 68
08053321 ???????? (8047ac4, 8047ac8, 8047abc)
08051de1 main (1, 806d2d8, 8047b10) + 20a
08051b37 ???????? (2, 8047bdc, 8047c2e, 0, 8047c37, 8047c4b)
----------------- lwp# 2 --------------------------------
You can't ctrl-c, ctrl-d, ctrl-z, or kill -9 the process.
kill -3 does nothing as well.
Not much on SunSolve or Google but I did see these...
#22709: mountd Hangs Waiting for Nameservice java.lang. ...
Bug ID: 4636691 JVM (Server VM) hangs (apparently) in socket ...}}
Any ideas? Thanks.
ps. Could just be random network problems today - how to determine that?
(besides waiting until tomorrow :) I tried running netstat, prstat, and a couple
other things.
pps. Tried with 1.4.2_06 and 1.5 (01, 03, and 06).

Where does that prerequisite come from?
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WL 5.1sp9 and patches for JDK 1.3 and Solaris 2.8patches

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see http://java.sun.com for patches required for the JVM
Mike
Dennis P. Meek <[email protected]> wrote:
Are there any patches needed to run WL 5.1 sp 9 with solaris 2.8, JDK
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Logon procedure hangs on my Solaris 10, why?

Today we added more RAM to the Virtual Machine called SRWIKI501 and now it has 1024 GB RAM but after reboot it hangs with this:
SunOS Release 5.10 Version Generic_127128-11 64 bit
Copyright 1983-20008 Sun Microsystems Inc. All rights reservd.
Use is subject to license terms.
NOTICE: MPO disabled because memory is inter leaved
Hostname: srwiki501
/dev/rdsk/c1t0d0s7 is clean
srwiki501 console login: wcy (then I presses enter ...
_ (and nothing happens, it hangs)
I am Sun Solaris 10 (Update 5) 64 bit on Vmware ESX Server 3.0.2. I do not have Vmware Tools installed yet, I was going to, but I am left outside the door, how can I debug this in order to get the system back on track?
I am new to SunOS 10 and I have my daily work on AIX but I want to learn this. I have googled forward and backwards and I see that other have similar problems, however I get my login they don't. I had a system running before the reboot.
Weird, because I can do this:
G:\>ping srwiki501
Pinging srwiki501.postdk.net [10.135.131.37] with 32 bytes of data:
Reply from 10.135.131.37: bytes=32 time=1ms TTL=252
Reply from 10.135.131.37: bytes=32 time<1ms TTL=252
Reply from 10.135.131.37: bytes=32 time<1ms TTL=252
Reply from 10.135.131.37: bytes=32 time<1ms TTL=252
Ping statistics for 10.135.131.37:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 1ms, Average = 0ms
G:\>nslookup srwiki501
Server: srdcna501.postdk.net
Address: 193.3.121.22
Name: srwiki501.postdk.net
Address: 10.135.131.37
G:\>tracert srwiki501
Tracing route to srwiki501.postdk.net [10.135.131.37]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 10.134.18.3
2 <1 ms <1 ms <1 ms 10.134.16.5
3 <1 ms <1 ms <1 ms 10.135.128.3
4 <1 ms <1 ms <1 ms srwiki501.postdk.net [10.135.131.37]
Trace complete.
G:\>ping 10.135.131.1
Pinging 10.135.131.1 with 32 bytes of data:
Reply from 10.135.131.1: bytes=32 time<1ms TTL=253
Reply from 10.135.131.1: bytes=32 time<1ms TTL=253
Reply from 10.135.131.1: bytes=32 time<1ms TTL=253
Reply from 10.135.131.1: bytes=32 time<1ms TTL=253
Ping statistics for 10.135.131.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
Best regards,
Steen Jensen, Post Danmark

OK, now I have booted the server up with the -v options and here is the spot where it hangs:
Jul 28 22:04:08 srwiki501 genunix: model Vmware Virtual IDE CDROM Drive
Jul 28 22:04:08 srwiki501 genunix: ARA/ATAPI-4 supported, majver 0x1e minver 0x17
Jul 28 22:04:08 srwiki501 pci: PCI-device: ide@0, ata0
Jul 28 22:04:08 srwiki501 genunix: ata0 is /pci@0,0/pci-ide-@7,1/ide@0
Jul 28 22:04:08 srwiki501 genunix: ATA DMA off: disabled. Control with "at api-cd-dma-enabled" property
Jul 28 22:04:08 srwiki501 genunix: PIO mode 4 selected
Jul 28 22:04:08 srwiki501 genunix: ATA DMA off: disabled. Control with "at api-cd-dma-enabled" property
Jul 28 22:04:08 srwiki501 genunix: PIO mode 4 selected
Jul 28 22:04:08 srwiki501 genunix: ATA DMA off: disabled. Control with "at api-cd-dma-enabled" property
Jul 28 22:04:08 srwiki501 genunix: PIO mode 4 selected
Jul 28 22:04:08 srwiki501 genunix: ATA DMA off: disabled. Control with "at api-cd-dma-enabled" property
Jul 28 22:04:08 srwiki501 genunix: PIO mode 4 selected
Jul 28 22:04:08 srwiki501 scsi: sd1 at ata0: target 0 lun 0
Jul 28 22:04:08 srwiki501 genunix: sd1 is /pci@0,0/pci-ide@7,1/ide@0/sd@0,0
Jul 28 22:04:09 srwiki501 pseudo: pseudo-device: dtrace0
Jul 28 22:04:09 srwiki501 genunix: dtrace0 is /pseudo/dtrace@0
Jul 29 07:22:53 srwiki501 genunix:: WARNING: Time of Day clock error: Reason [Stalled]. � Stopped tracking Time Of Day Clock
IT HANGS FOR GOOD HERE :-(
Next I will try to boot up in single user mode in order to get a breakthrough, hopefully ...
Edited by: SteenJensen on 29-07-2008 07:59

Win 7/Office 2010 hangs periodically - Network Problem?

Hi,
Our situation:
We have one user (out of 60) at our company whose computer periodically goes into "spin cycle" and she must reboot it because it won't respond. This happens a couple of times a week. Generally, she always has Outlook 2010 open, along
with a browser. We have tried two different computers with the same setup (Win 7/MSO2010) and we are still seeing the "spin cycle". We have tried two different Ethernet connections to our LAN switch and tried different ports on the LAN
switch. We are not sure what else to check, or where to begin looking. Could this have anything to do with DNS or DHCP or ??
Any suggestions would be greatly appreciated.
Thanks, Linda

Hi,
How about your problem now? In my opinion, its hard to identify what's the specific reason of this hung problem. Which app's process that came into Spin Cyle? Windows Explorer or Outlook, or both of them?
To troubleshoot the problem, firstly, you can try to check Event log or Problem Report in Action Center. Generaly speaking, both of them would record the events of system hung.
In addition, did you install any program before this problem occures? 3rd extension or app is most possible to cause this problem.
If there is any progress about your poblem, please feel free let me know.
Roger Lu
TechNet Community Support

Bug 5088398 for JDK 1.5 in SOLARIS SPARC 10

The above bug relates to a java.lang.instrument TCK test deadlock (test11). The bug was solved about a month ago (March, 2008).
My question is when it is going to be integrated in solaris 10 patches or maybe there is already a patch for it.
Thank you
Simcha

This is not the correct place to ask that kind of question, we don't know.
You better contact Sun directly.

SQL Developer hangs periodically

Hi,
I'm connecting to my test instance (Oracle XE) and each 5mins-10mins SQL Developer hangs. It doesn't matter what I'm doing, I can be executing a big query or I wasn't doing anything for a while and then simply consulting Columns of a table and hangs...
I saw the underlying error is:
oracle.javatools.util.CanceledException
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Josep

Is this what you mean?
bq. Oracle SQL Developer \\ +     Copyright (c) 2008, Oracle. All rights reserved.+ \\ +     Locking assertion failure. Backtrace:+ \\ +     #0 /usr/lib/libxcb-xlib.so.0 [0x8c900767]+ \\ +     #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0x8c9008b1]+ \\ +     #2 /usr/lib/libX11.so.6(_XReply+0xfd) [0x8bdb31bd]+ \\ +     #3 /opt/middleware/jdk160_05/jre/lib/i386/xawt/libmawt.so [0x8c0738ce]+ \\ +     #4 /opt/middleware/jdk160_05/jre/lib/i386/xawt/libmawt.so [0x8c050067]+ \\ +     #5 /opt/middleware/jdk160_05/jre/lib/i386/xawt/libmawt.so [0x8c050318]+ \\ +     #6 /opt/middleware/jdk160_05/jre/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x2f) [0x8c05061f]+ \\ +     #7 [0xb4d413aa]+ \\ +     #8 [0xb4d39f0d]+ \\ +     #9 [0xb4d39f0d]+ \\ +     #10 [0xb4d37249]+ \\ +     #11 /opt/middleware/jdk160_05/jre/lib/i386/server/libjvm.so [0x637338d]+ \\ +     #12 /opt/middleware/jdk160_05/jre/lib/i386/server/libjvm.so [0x64fd168]+ \\ +     #13 /opt/middleware/jdk160_05/jre/lib/i386/server/libjvm.so [0x6373220]+ \\ +     #14 /opt/middleware/jdk160_05/jre/lib/i386/server/libjvm.so(JVM_DoPrivileged+0x363) [0x63c90d3]+ \\ +     #15 /opt/middleware/jdk160_05/jre/lib/i386/libjava.so(Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) [0xb7d5296d]+ \\ +     #16 [0xb4d413aa]+ \\ +     #17 [0xb4d39da7]+ \\ +     #18 [0xb4d37249]+ \\ +     #19 /opt/middleware/jdk160_05/jre/lib/i386/server/libjvm.so [0x637338d]+ \\ +     Locking assertion failure. Backtrace:+ \\ +     #0 /usr/lib/libxcb-xlib.so.0 [0x8c900767]+ \\ +     #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0x8c90081e]+ \\ +     #2 /usr/lib/libX11.so.6 [0x8bdb2518]+ \\ +     #3 /usr/lib/libX11.so.6(XGetVisualInfo+0x26) [0x8bda90a6]+ \\ +     #4 /opt/middleware/jdk160_05/jre/lib/i386/xawt/libmawt.so [0x8c04f319]+ \\ +     #5 /opt/middleware/jdk160_05/jre/lib/i386/xawt/libmawt.so [0x8c04f565]+ \\ +     #6 /opt/middleware/jdk160_05/jre/lib/i386/xawt/libmawt.so [0x8c0503c9]+ \\ +     #7 /opt/middleware/jdk160_05/jre/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x2f) [0x8c05061f]+ \\ +     #8 [0xb4d413aa]+ \\ +     #9 [0xb4d39f0d]+ \\ +     #10 [0xb4d39f0d]+ \\ +     #11 [0xb4d37249]+ \\ +     #12 /opt/middleware/jdk160_05/jre/lib/i386/server/libjvm.so [0x637338d]+ \\ +     #13 /opt/middleware/jdk160_05/jre/lib/i386/server/libjvm.so [0x64fd168]+ \\ +     #14 /opt/middleware/jdk160_05/jre/lib/i386/server/libjvm.so [0x6373220]+ \\ +     #15 /opt/middleware/jdk160_05/jre/lib/i386/server/libjvm.so(JVM_DoPrivileged+0x363) [0x63c90d3]+ \\ +     #16 /opt/middleware/jdk160_05/jre/lib/i386/libjava.so(Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) [0xb7d5296d]+ \\ +     #17 [0xb4d413aa]+ \\ +     #18 [0xb4d39da7]+ \\ +     #19 [0xb4d37249]+ \\ +     Parse time = 258+ \\ +     Incremental Parse time = 99+ \\ +     Incremental Parse time = 7+ \\ +     InsightableOracleDatabase.fetch() time = 49+
Thanks
Josep

How to check hanged process in solaris

Hi every one ...
I have a 10 processes running in my server .. suddenly on process got hanged ..
How can i check the hanged process...is there any specific command or ehat does the notation it shows in prstat command
Thanks in Advance

First, if the process is not showing 0% CPU utilization in prstat, it's not hung, although it may be stuck in an infinite loop. That's actually a significant difference, as an infinite loop is a logic error, whereas getting stuck could be a failure of some type.
To see if it's really hung, you can use the "truss" or "pstack" commands:
truss -p PID &or
pstack PID &where PID is the process ID of the process you want to check. Note the ampersand to background the process. That's because if the process is indeed stuck in an unkillable wait for a kernel lock, your truss or pstack process will also be stuck and unkillable.
The pstack call should just run and return. It will show the current call stack for all threads in the process. Run it several times and see if it changes. The truss call will run as long as the target process is running, and it will show all system calls made by the process. If it doesn't output anything at all the process is running in user space and should still be getting CPU time, or it's stuck.

BB Curve 8320 OS 4.5 hangs periodically, makes the phone unusable

Hi there,
I have a T-Mobile Curve 8320 running OS 4.5 whcih I updated from the web on my laptop, and installed to the BB device via a USB cable. I also am running the latest BB desktop software, 4.7.
I'm having hanging issues where a clock icon appears on the screen and makes the BB impossible to use for several minutes. This happens several times throughout the day and is very frustrating.
I do not use a media card. I am, however, using Google's synch software for my calendar. I wonder if that's causing the hang.
I went to Options/About and see this:
BlackBerry 8320
smartphone (EDGE, Wi-Fi)
v4.5.0.81 (Platform 2.7.0.78)
Cryptographic Kernel v3.8.5.32a
Micro Edition Configuration: CLDC-1.1
Micro Edition Profile: MIDP-2.0
Micro Edition JTWI Version: 1.0
Micro Edition Media Version: 1.1
Micro Edition PIM Version: 1.0
Micro Edition File Version: 1.0
Micro Edition Bluetooth Version: 1.1
Micro Edition Location Version: 1.0.1
Micro Edition Security and Trust Services (APDU) Version: 1.0
WLAN Version: 2.3.0.74
If you can help me solve this hanging issue, I'd be very grateful.
-- Zachary

Low Memory. 4mb file free is severely lacking. You need upwards of 15mb file free.
First thing? Check the File Free at Options > Status, what is the number at File Free? Now, remove the battery of your device, hold a minute, replace and reboot. What is the File Free now?
Read this: http://www.blackberryforums.com/general-blackberry-discussion/116396-managing-your-bb-memory-lost-ca...
And this: http://www.blackberryforums.com/general-blackberry-discussion/112029-losing-call-logs-sms-emails-opt...
Additional links to read:
http://www.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB15345&sliceId=SAL_Pub...
http://www.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB14320&sliceId=SAL_Pub...
http://www.blackberry.com/btsc/dynamickc.do?externalId=KB14213&sliceId=SAL_Public&command=show&forwa...
1. If any post helps you please click the below the post(s) that helped you.
2. Please resolve your thread by marking the post "Solution?" which solved it for you!
3. Install free BlackBerry Protect today for backups of contacts and data.
4. Guide to Unlocking your BlackBerry & Unlock Codes
Join our BBM Channels (Beta)
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JMXConnectorFactory.connect Hangs periodically

Whenever trying to establish a JMX connection to a remote managed device there appears to be a hang when invoking the JMXConnectorFactory.connect. This behavior is exhibited operatically but there have been several successful connections to the same remote device prior to the hung attempt. We are using the optional protocol for JMX which is JMXMP so additional dependencies on the jmxremote.jar and jmxremote_optional.jar. I know there are some timeout properties that can be set as apart of the environment map that is passed into the connect but it seems to have no impact on the hang. From researching there have been several enhancements to both of these jars and we are currently on the 1.0 version. Would upgrading to the 2.0 version potentially solve this issue? Would the timeout property be recognized? Switching from 1.0 to 2.0 is a non-passive change as well which could complicate things.
Configuration:
JRE: 1.5.0_15
JMX Protocol: JMXMP
SSL Enabled
Thanks for any help in advance.

hi alan_mehio
Thank you for the reply
ApplicationContext context = new ClassPathXmlApplicationContext(
new String[] {"classpath:context.xml"}); The above line throws aqn error "cannot convert ClassPathXmlApplicationContext to ApplicationContext
so i have the changed the code to
{code}
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
new String[] {"classpath:context.xml"}); {code}
After changing to this i got an error that org.springframework.beans.BeansException is indirectly referenced
I solved the issue by downloading & adding the spring-beans.jar to the classpath.
FYI
But the above line is also throwing an exception
java.lang.NoClassDefFoundError: org/springframework/context/support/ClassPathXmlApplicationContext
Even though the jar files are in the build path. Please tell how to overcome this
Thanks in advance
K Sathya Narayanan.

1.6.0_05 JDK hangs periodically on Solaris 9

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