Reloading class in debug mode
Is there a way in JDeveloper to modify the code in a debug session and have the container re-load it automatically instead of having to re-start the debug session.
Any insight will be greatly appreciated.
9.0.5 will include this feature as reported here:
http://radio.weblogs.com/0118231/
You'll have to scroll down a bit to get to the article.
Similar Messages
-
Debugging mode in server - How does it work?
Hi
How does debugging mode in a server work ?
Is the code compiled line by line as we proceed or how ?
When we make a code change how is the hot code replaced when in debug mode and why not in normal run mode?
Why is it not necessary to restart a server when we make changes to jsp when in normal mode?
Thanks in AdvanceHow does debugging mode in a server work ?Just like in any othe rprogram.
Then how is it possible to change the values when
the program is running . i.e. we have a option that
we can change the values right !!
Because the debug api allows you to do that.
>
s the code compiled line by line as we proceedor
how ?
No. Line number information is stored in the.class
file, and the editor simply displays the line the
bytecode mentions. Whether bytecode and sourcecode
match is a different thing.
I had previously read that the compiler compiles
the code with break points at the beginning of every
class (for step by step method)
I agree with Rene. It happensthat you debug with the wrong source code and you will in that case notice that the debugger is saying that you are executing a line between methods.
>
>
When we make a code change how is the hot code
replaced when in debug mode and why not innormal
run
mode?I guess the executed bytecode for a method issimply
replaced in memory... the entry point was probably
stored and will be used to re-set to method entry
before running the new bytecode.
Then why is it not done when we are running the
server in the normal mode.
Why would it? What code should it replace it with?
>
>
Why is it not necessary to restart a server when
we
make changes to jsp when in normal mode?
Because the server can notice the change andunload
and reload the class.
I meant that when the jsp is compiled the servlet
is created when i run the server right.(i'm not
sure).
So when I change the code and without restarting the
server I run a jsp file it reflects the changes...
HOW??
Because some servlet runners can be configured to check changes on disk, and recompile if needed.
Kaj -
Hi,
Im running the application in debug mode. after which i updated a java file and compiled it. Now when i reload the page(didnt restart the server instance), i am getting classnotfound exception.
Is this a standard behaviour of Jdev or when i reload the page should the latest file should get picked?
Thanks,
ViswanathTimo,
Sorry in my previous post ,i meant to say that i have to rerun the application.Should i rerun the application even if i change any property in .jspx page?
When i change the existing java file and reopen the target url, sometimes it picks the latest file and sometimes it gives IllegalStateException.
Could you please explain what changes get reflected immediately and when should i rerun the application.
In one of the forum post there was suggestion to set the below property. When i tried this application didn't recognize the class files even when i rerun.
Tools->Preferences->Run->WebLogic and setting Select Hot Class Reload Policy to Fast Swap
Thanks,
Viswanath -
Can't Run program in Debug Mode
To: [email protected]
cc:
Subject: Can't Run program in Debug Mode
Has anyone else experienced this problem? We have written a non-express
program that uses the Express generated services project as a supplier
plan. However, when we try running this program in debug mode about 50%
(or more) of the time we abend while Forte is trying to partition the
application. Since we have many database classes in our Business Model we
are wondering if Forte is timing out during the partition phase or if the
server partition is running out of memory . The following error messages
are produced by Forte. Any suggestions???
=======================
Error messages on client:
=======================
SYSTEM ERROR: Unable to start the partition testacadprogoffer_CL0_Part1 on
any
of the nodes to which it has been assigned. See the remainder of the
error
stack for more information.
Class: qqsp_ResourceException
Error #: [1602, 593]
Detected at: qqcf_StandardConfig::LoadRemotePartition at 5
Last TOOL statement: method overview.StartApplication
Error Time: Tue Dec 02 12:56:01
Exception occurred (locally) on partition "Express_cl7_Client",
(partitionId = F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3,
taskId =
[F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3.226]) in application
"FTLaunch_cl0", pid 65 on node DWILBUR_NTWS in environment
CentralEnv.
SYSTEM ERROR: Unable to start partition testacadprogoffer_CL0_Part1 on node
admin2.
Class: qqsp_ErrorDescriptor
Error #: [1602, 592]
Detected at: qqcf_StandardConfig::LoadRemotePartition at 3
Error Time: Tue Dec 02 12:56:01
Exception occurred (locally) on partition "Express_cl7_Client",
(partitionId = F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3,
taskId =
[F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3.226]) in application
"FTLaunch_cl0", pid 65 on node DWILBUR_NTWS in environment
CentralEnv.
SYSTEM ERROR: Lost contact with remote server while trying to load
partition
testacadprogoffer_CL0_Part1. Check server log file for more information
about
the specific problem.
Class: qqsp_ResourceException
Error #: [1301, 102]
Detected at: qqem_IPartitionAgent::Startup at 5
Error Time: Tue Dec 02 12:56:01
Exception occurred (locally) on partition "Express_cl7_Client",
(partitionId = F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3,
taskId =
[F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3.226]) in application
"FTLaunch_cl0", pid 65 on node DWILBUR_NTWS in environment
CentralEnv.
INFORMATION: The connection to the partner was terminated by the
Communication
Manager for the reasons below.
Class: qqsp_DistAccessException
Detected at: qqdo_PartitionMgr::StopLocation at 1
Error Time: Tue Dec 02 12:56:00
Distributed method called: qqrt_ForteExecAgentProxy.LoadPartition!6
(object name Unnamed) from partition "Forte_Executor", (partitionId =
F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9, taskId =
[F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9.229]) in application
"FTLaunch_cl0", pid 65 on node DWILBUR_NTWS in environment CentralEnv
Exception occurred (locally) on partition "Express_cl7_Client",
(partitionId = F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3,
taskId =
[F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3.226]) in application
"FTLaunch_cl0", pid 65 on node DWILBUR_NTWS in environment
CentralEnv.
INFORMATION: Network partner closed connection. This usually means the
process at the other end of the wire failed. Please go look there and
find
out why.
Class: qqsp_DistAccessException
Detected at: qqcm_HoseFSM::ReceivedClose at 2
Error Time: Tue Dec 02 12:56:00
Exception occurred (locally) on partition "Express_cl7_Client",
(partitionId = F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3,
taskId =
[F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3.226]) in application
"FTLaunch_cl0", pid 65 on node DWILBUR_NTWS in environment
CentralEnv.
INFORMATION: Received close: Connection aborted (10053).
Class: qqsp_DistAccessException
Detected at: qqcm_HoseFSM::ReceivedClose at 1
Error Time: Tue Dec 02 12:56:00
Exception occurred (locally) on partition "Express_cl7_Client",
(partitionId = F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3,
taskId =
[F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3.226]) in application
"FTLaunch_cl0", pid 65 on node DWILBUR_NTWS in environment
CentralEnv.
=======================
Log messages on server:
=======================
Attached to manager for node admin2.
aud Tue Dec 2 09:34:36 : Loading partition testacadprogoffer_cl0_Part2
built on <unknown>.
Attached to manager for node admin2.
aud Tue Dec 2 09:41:58 : Shutting down partition as requested.
aud Tue Dec 2 09:41:59 : Unloaded partition testacadprogoffer_cl0_Part2.
aud Tue Dec 2 09:49:44 : Loading partition testacadprogoffer_cl0_Part2
built on <unknown>.
Attached to manager for node admin2.
aud Tue Dec 2 10:00:11 : Shutting down partition as requested.
aud Tue Dec 2 10:00:12 : Unloaded partition testacadprogoffer_cl0_Part2.
aud Tue Dec 2 10:18:34 : Loading partition testacadprogoffer_cl0_Part3
built on <unknown>.
Attached to manager for node admin2.
aud Tue Dec 2 10:27:00 : Shutting down partition as requested.
aud Tue Dec 2 10:27:00 : Unloaded partition testacadprogoffer_cl0_Part3.
aud Tue Dec 2 10:47:03 : Loading partition
EvaluateApplRequirementsBO_CL0_Part1 built on <unknown>.
Attached to manager for node admin2.
aud Tue Dec 2 11:09:26 : Shutting down partition due to failure of agent
owner's partition.
aud Tue Dec 2 11:09:26 : Shutting down partition as requested.
aud Tue Dec 2 11:09:26 : Unloaded partition
EvaluateApplRequirementsBO_CL0_Part1.
aud Tue Dec 2 12:36:14 : Loading partition testacadprogoffer_CL0_Part1
built on <unknown>.
Attached to manager for node admin2.
aud Tue Dec 2 12:45:17 : Shutting down partition as requested.
aud Tue Dec 2 12:45:17 : Unloaded partition testacadprogoffer_CL0_Part1.
FATAL ERROR: Out of Memory (reason = qqOS_MM_EX_OUT_OF_MEMORY)
FATAL ERROR: Out of Memory (reason = qqOS_MM_EX_OUT_OF_MEMORY)
Task 11: qqcm_HoseRecvServiceTask::Run: Caught unexpected exception
FATAL ERROR: ************* Out of Memory, requested (1K) available (0K)
Class: qqsp_ResourceException with ReasonCode: SP_ER_OUTOFMEMORY
Detected at: qqos_MemoryManager
Error Time: Tue Dec 2 12:49:01
Exception occurred (locally) on partition "Forte_Executor",
(partitionId = F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10f3, t
askId = [F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10f3.11]) in application
"Forte Runtime", pid 14020 on node admin2 in environ
ment CentralEnv.
FATAL ERROR: ************* Out of Memory, requested (1K) available (0K)
Class: qqsp_ResourceException with ReasonCode: SP_ER_OUTOFMEMORY
Detected at: qqos_MemoryManager
Error Time: Tue Dec 2 12:48:57
FATAL ERROR: Out of Memory (reason = qqOS_MM_EX_OUT_OF_MEMORY)
FATAL ERROR: Out of Memory (reason = qqOS_MM_EX_OUT_OF_MEMORY)
ERROR: TMgr.RunThread: task cm.Recv failed terminating.
Probably caused by a FATAL exception.
David Wilbur email: [email protected]
University of Windsor phone: 519-253-3000 ext. 2779
Windsor, Ontario Canada
-----------------------------------------------Hi,
We have had the same problem in a non-express application
with a heavy server partition. In our case, the error was not
systematic, depending on the server workload at the time we
tried to partition and run.
The work-around we're using is to put the -fm flags (increasing the x
parameter to say 30000) in the 'server arguments' of your server
partition
properties in the partition workshop. Note that if your server is a Unix
platform,
you need to put double-quotes before and after the parenthesis in the -fm
syntax.
Hope this helps,
Vincent Figari
BTW, what Forte version are you using ?
On Tue, 2 Dec 1997 13:44:24 -0500 "David Wilbur"<[email protected]>
writes:
>
>
>
>
>
To: [email protected]
cc:
Subject: Can't Run program in Debug Mode
Has anyone else experienced this problem? We have written a
non-express
program that uses the Express generated services project as a supplier
plan. However, when we try running this program in debug mode about
50%
(or more) of the time we abend while Forte is trying to partition the
application. Since we have many database classes in our Business
Model we
are wondering if Forte is timing out during the partition phase or if
the
server partition is running out of memory . The following error
messages
are produced by Forte. Any suggestions???
=======================
Error messages on client:
=======================
SYSTEM ERROR: Unable to start the partition
testacadprogoffer_CL0_Part1 on
any
of the nodes to which it has been assigned. See the remainder of
the
error
stack for more information.
Class: qqsp_ResourceException
Error #: [1602, 593]
Detected at: qqcf_StandardConfig::LoadRemotePartition at 5
Last TOOL statement: method overview.StartApplication
Error Time: Tue Dec 02 12:56:01
Exception occurred (locally) on partition "Express_cl7_Client",
(partitionId = F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3,
taskId =
[F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3.226]) in
application
"FTLaunch_cl0", pid 65 on node DWILBUR_NTWS in environment
CentralEnv.
SYSTEM ERROR: Unable to start partition testacadprogoffer_CL0_Part1 on
node
admin2.
Class: qqsp_ErrorDescriptor
Error #: [1602, 592]
Detected at: qqcf_StandardConfig::LoadRemotePartition at 3
Error Time: Tue Dec 02 12:56:01
Exception occurred (locally) on partition "Express_cl7_Client",
(partitionId = F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3,
taskId =
[F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3.226]) in
application
"FTLaunch_cl0", pid 65 on node DWILBUR_NTWS in environment
CentralEnv.
SYSTEM ERROR: Lost contact with remote server while trying to load
partition
testacadprogoffer_CL0_Part1. Check server log file for more
information
about
the specific problem.
Class: qqsp_ResourceException
Error #: [1301, 102]
Detected at: qqem_IPartitionAgent::Startup at 5
Error Time: Tue Dec 02 12:56:01
Exception occurred (locally) on partition "Express_cl7_Client",
(partitionId = F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3,
taskId =
[F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3.226]) in
application
"FTLaunch_cl0", pid 65 on node DWILBUR_NTWS in environment
CentralEnv.
INFORMATION: The connection to the partner was terminated by the
Communication
Manager for the reasons below.
Class: qqsp_DistAccessException
Detected at: qqdo_PartitionMgr::StopLocation at 1
Error Time: Tue Dec 02 12:56:00
Distributed method called:
qqrt_ForteExecAgentProxy.LoadPartition!6
(object name Unnamed) from partition "Forte_Executor",
(partitionId =
F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9, taskId =
[F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9.229]) in
application
"FTLaunch_cl0", pid 65 on node DWILBUR_NTWS in environment
CentralEnv
Exception occurred (locally) on partition "Express_cl7_Client",
(partitionId = F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3,
taskId =
[F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3.226]) in
application
"FTLaunch_cl0", pid 65 on node DWILBUR_NTWS in environment
CentralEnv.
INFORMATION: Network partner closed connection. This usually means
the
process at the other end of the wire failed. Please go look there
and
find
out why.
Class: qqsp_DistAccessException
Detected at: qqcm_HoseFSM::ReceivedClose at 2
Error Time: Tue Dec 02 12:56:00
Exception occurred (locally) on partition "Express_cl7_Client",
(partitionId = F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3,
taskId =
[F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3.226]) in
application
"FTLaunch_cl0", pid 65 on node DWILBUR_NTWS in environment
CentralEnv.
INFORMATION: Received close: Connection aborted (10053).
Class: qqsp_DistAccessException
Detected at: qqcm_HoseFSM::ReceivedClose at 1
Error Time: Tue Dec 02 12:56:00
Exception occurred (locally) on partition "Express_cl7_Client",
(partitionId = F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3,
taskId =
[F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10e9:0x3.226]) in
application
"FTLaunch_cl0", pid 65 on node DWILBUR_NTWS in environment
CentralEnv.
=======================
Log messages on server:
=======================
Attached to manager for node admin2.
aud Tue Dec 2 09:34:36 : Loading partition
testacadprogoffer_cl0_Part2
built on <unknown>.
Attached to manager for node admin2.
aud Tue Dec 2 09:41:58 : Shutting down partition as requested.
aud Tue Dec 2 09:41:59 : Unloaded partition
testacadprogoffer_cl0_Part2.
aud Tue Dec 2 09:49:44 : Loading partition
testacadprogoffer_cl0_Part2
built on <unknown>.
Attached to manager for node admin2.
aud Tue Dec 2 10:00:11 : Shutting down partition as requested.
aud Tue Dec 2 10:00:12 : Unloaded partition
testacadprogoffer_cl0_Part2.
aud Tue Dec 2 10:18:34 : Loading partition
testacadprogoffer_cl0_Part3
built on <unknown>.
Attached to manager for node admin2.
aud Tue Dec 2 10:27:00 : Shutting down partition as requested.
aud Tue Dec 2 10:27:00 : Unloaded partition
testacadprogoffer_cl0_Part3.
aud Tue Dec 2 10:47:03 : Loading partition
EvaluateApplRequirementsBO_CL0_Part1 built on <unknown>.
Attached to manager for node admin2.
aud Tue Dec 2 11:09:26 : Shutting down partition due to failure of
agent
owner's partition.
aud Tue Dec 2 11:09:26 : Shutting down partition as requested.
aud Tue Dec 2 11:09:26 : Unloaded partition
EvaluateApplRequirementsBO_CL0_Part1.
aud Tue Dec 2 12:36:14 : Loading partition
testacadprogoffer_CL0_Part1
built on <unknown>.
Attached to manager for node admin2.
aud Tue Dec 2 12:45:17 : Shutting down partition as requested.
aud Tue Dec 2 12:45:17 : Unloaded partition
testacadprogoffer_CL0_Part1.
FATAL ERROR: Out of Memory (reason = qqOS_MM_EX_OUT_OF_MEMORY)
FATAL ERROR: Out of Memory (reason = qqOS_MM_EX_OUT_OF_MEMORY)
Task 11: qqcm_HoseRecvServiceTask::Run: Caught unexpected exception
FATAL ERROR: ************* Out of Memory, requested (1K) available
(0K)
Class: qqsp_ResourceException with ReasonCode: SP_ER_OUTOFMEMORY
Detected at: qqos_MemoryManager
Error Time: Tue Dec 2 12:49:01
Exception occurred (locally) on partition "Forte_Executor",
(partitionId = F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10f3, t
askId = [F88CCF80-FA5D-11D0-A2F1-DA164885AA77:0x10f3.11]) in
application
"Forte Runtime", pid 14020 on node admin2 in environ
ment CentralEnv.
FATAL ERROR: ************* Out of Memory, requested (1K) available
(0K)
Class: qqsp_ResourceException with ReasonCode:
SP_ER_OUTOFMEMORY
Detected at: qqos_MemoryManager
Error Time: Tue Dec 2 12:48:57
FATAL ERROR: Out of Memory (reason = qqOS_MM_EX_OUT_OF_MEMORY)
FATAL ERROR: Out of Memory (reason = qqOS_MM_EX_OUT_OF_MEMORY)
ERROR: TMgr.RunThread: task cm.Recv failed terminating.
Probably caused by a FATAL exception.
David Wilbur email: [email protected]
University of Windsor phone: 519-253-3000 ext. 2779
Windsor, Ontario Canada -
How to start the server in debug mode
HI
Im working on weblogic server 8.1 sp. My requirement is to run the application in hosted on weblogic server with out restaring the server i.e dynamiically turn to debug mode with out stopping. IM using Log4j method for logging. please let me know how to do it... if any one have sample java code
Thanks & regards
shivaI am not sure, how can you do it on the fly, but if you want to restart the server here are the parameters you need to add to the java arguments
-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=$Port
(where Port will be any port you want to connect to).
Thanks
Togotutor
<b><a class="jive-link-external" href="http://www.togotutor.com">http://www.togotutor.com</a> (Learn Programming and Administration for Free)</b>
Edited by: togotutor on Aug 12, 2010 3:44 PM -
Edit code while in debug mode in CC
Hi,
I have just upgraded to Flash CC, and can no longer edit code while in debug mode. It appears the code window becomes read only while debugging. This is problematic because I often find it very useful to copy in variable names from data visible in the variables display portion of the call stack. This is very helpful if I have made a typo in my variable names, or if I am reading out data from a network request and I don't know the variable names ahead of time. Is there a way to unlock the code window so it does not become read only during debugging?
-DavidHi Amy,
I appreciate that you are trying to help, and from a purely coding standpoint see the advantages to Flash Builder IDE over the Flash Professional IDE. Although personally I am a Visual Studio kinda guy... However I am working with a fairly large code base, (we are a small game studio that has been working with flash cs4, 5, and 5.5 for the past 5 years) and while nobody that works for me is crazy enough to put code on the timeline, we do have a significant amount of UI elements, dialogs, and layouts that are designed in the Flash editor with logic in classes that extend those elements. Now correct me if I am wrong, but it is my understanding that you cannot build FLA files from flash builder let alone have them link with the classes that are set to extend them in Flash Professional. The move to CC actually gives us access to Flash Builder - something that previously was an additional $500 a seat. While it may make sense for us to use in the future, for now I am faced with the issue of the new Flash CC has removed the ability to edit the code while debugging. I was hoping there was a setting or a hidden option to turn this very unnecessary change off, I wasn't really asking for a critique of my IDE choice.
-David -
JNI_CreateJavaVM in debug mode
Hi,
on W2K using JDK1.3.1...
I tried, from my own executable, to launch a JVM in remote debug mode. My IDE for Java is Idea, so it provides me the arguments to provide to that function :
-Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5000
the other JVM args are "-Xms150m","-Xmx150m", and the classpath to my jar (given as -Djava.class.path)
Note that I load the jvm.dll dynamically (using LoadLibrary()). I don't do any static linking...
The question is :
If I don't explicitly load the dt_socket.dll using LoadLibrary()
the JVM refuses to load, with the following message :
Transport dt_socket failed to initialize, rc = 509.
FATAL ERROR in native method: No transports initialized
if I use shared meme instead of tcp, I have a similar message :
Transport dt_shmem failed to initialize, rc = 509.
FATAL ERROR in native method: No transports initialized
Is there any additional args to provide to the JVM so that I don't have to explicitly load the dlls it requires ?
My goal is to be the as little dependant as possible from the brand/version/installation/Operating System of the JVM...
Thanks in advance.
C.DoreWell, as a second view, I don't beleive that the dlls that are missing are statically likned. Because the error message is not a Windows message :
Transport dt_socket failed to initialize, rc = 509.
FATAL ERROR in native method: No transports initialized
Thus, the required dlls should be search relatively to the path of the jvm.dll, or the the path of jdwp.dll
I consider this as a bug. -
Hi All,
If I run my OAF page in debug mode and keep pressing F8, the control tends to reach classes like OAWebBeanHelper etc.
Are we suppose to look into the code for these classes for debugging ?
How do I skip these seeded classes code when I am in debug mode ?
I want to see, where the control is going from the end of my current method..
-AmitWhat exactly are you trying to debug. At the end of your method it will go back to the next line on the calling method. You can check that in the stack window(next tab to the structure pane) where you will find the entire stack of flow. You can also use Step out of the current method in to the calling method.
-
WaitFor() works only when in debugging mode!
Hi, im having a problem with making my function waits for a process to end while in run mode!
The function always run and exists while the process is still running...
I checked it in debugging mode and it worked just fine, but i cant seem to be able to make it work in the run mode!
Any hints???
Here is my code:
public void executeBatch (){
try{
Runtime runtime = Runtime.getRuntime();
Process batchProcess = runtime.exec(new String[] {"cmd.exe", "/c", "FetchFiles.bat"}, null, new File(BATCH_FILES_PATH));
BufferedReader b = new BufferedReader(new InputStreamReader(batchProcess.getErrorStream()));
if (b.ready()){
String line=null;
while ( (line = b.readLine()) != null) {
System.out.println(line);
line = b.readLine();
int exitVal = batchProcess.waitFor();
System.out.println("Exit Value = " + exitVal);
} else {
b = new BufferedReader(new InputStreamReader(batchProcess.getInputStream()));
if (b.ready()){
String line=null;
while ( (line = b.readLine()) != null) {
System.out.println(line);
line = b.readLine();
int exitVal = batchProcess.waitFor();
System.out.println("Exit Value = " + exitVal);
} catch ( Exception ex ){
System.out.println("executeBatch : " + ex.getMessage());
btw, the process is a batch that connects to a linux server and "mget" files from some directories in the server...what the ....???
the "BadExecWinDir.java" bad approach is all about
not using an executable command like "dir"... which
im not using at all...More than that but secondary.
>
and for the "GoodWindowsExec.java" concept
demonstrates that you should handle the standard
error and standard input streams and emptying them
both together, which what i exactly did. i USED the
concept...
My piece of code is the same as the
"GoodWindowsExec.java" code except that i made the
code of the StreamGobbler class comes inside the
function directly, and that i didn't use a checkup on
the operating system to decide wither it's a Windows
NT or Windows 95 to decide the command prompt
executable name...StreamGobbler runs as a thread so both streams are emptied in parallel. In your code
String line=null;
while ( (line = brError.readLine()) != null)
System.out.println(line);this will only terminate when the process terminates and closes stderr. This means that the following code
while ( (line = brInput.readLine()) != null)
System.out.println(line);
only starts to run once the process terminates.
BUT, the stderr stream and stdout streams have a limited buffer and block when this buffer becomes full. So, if the stdout stream produces more than a buffer full then it blocks until more room is avaialable and the process cannot terminate so the error stream cannot be closed so the code to empty stdout cannot run to make room in the buffer to put more output. Phew!
If you change the order of emptying the two streams then you have a simillar effect.
The only way I know of dealing with this is to empty both streams at the same time so you need two threads. You can use the default thread for one but you MUST use another thread for the other. Since I use stdout, stderr and stdin I use 3 threads!
>
thats all...Please read the article again. -
During runtime, it is possible from the program itself to detect if it is being run in the java debug mode? Well the idea is that if it is running in the debug mode or release mode I can dynamically load the corresponding debug or release JNI classes.
Or just change the LD_LIBRARY_PATH (or PATH under Windows) that the debugger passes to java when it is started so that it finds the desired JNI shared library.
-
NoClassDefFoundError: in JDeveloper debug mode
Hi all.
I have a strange problem. Only one JSP in my entire application fails to appear when I debug with local (embeded) OC4J. These are the first lines of the exception message:
Exception:
java.lang.NoClassDefFoundError: _addFile
java.lang.Class java.lang.ClassLoader.defineClass0(java.lang.String, byte[], int, int, java.security.ProtectionDomain)
native code
The class _addFile is generated from addFile.jsp and is available in the output directory. Production application doesn't display the same behavior, this only happens in DEBUG mode in JDeveloper.
OS: win2000
JDK: 1.3.1
JDevaloper is 9.0.2.. something.
Thanks people.A few quick questions:
1. Can you run (not debug) the application?
2. Have you tried specifically compiling the file addfile.jsp in JDeveloper? - This will usually show the error before attempting to
run it.
To do this, select the file in the navigator and do a right-click Rebuild or Make.. -
Hi,
I am able to run my forms in run mode. But, when I try to run my application in debug mode, facing problems. FRM-92101 error is thrown.
Java console shows,
Loading http://157.227.14.178:8889/forms90/java/f90all_jinit.jar from JAR cache
proxyHost=null
proxyPort=0
connectMode=HTTP, native.
Forms Applet version is : 9.0.4.0
oracle.forms.net.ConnectionException: Forms session <3> aborted: unable to communicate with runtime process.
at oracle.forms.net.ConnectionException.createConnectionException(Unknown Source)
at oracle.forms.net.HTTPNStream.getResponse(Unknown Source)
at oracle.forms.net.HTTPNStream.doFlush(Unknown Source)
at oracle.forms.net.HTTPNStream.flush(Unknown Source)
at java.io.DataOutputStream.flush(Unknown Source)
at oracle.forms.net.StreamMessageWriter.run(Unknown Source)
Trace level set to 5: basic, net, security, ext, liveconnect ... completed.
Opening http://157.227.14.178:8889/forms90/java/oracle/ewt/alert/resource/AlertBundle_en_US.class
Connecting http://157.227.14.178:8889/forms90/java/oracle/ewt/alert/resource/AlertBundle_en_US.class with no proxy
Opening http://157.227.14.178:8889/forms90/java/oracle/ewt/alert/resource/AlertBundle_en_US.properties
Connecting http://157.227.14.178:8889/forms90/java/oracle/ewt/alert/resource/AlertBundle_en_US.properties with no proxy
Any idea?
Pl help
PriyaNobody has any suggestions or comments???
Can anyone confirm they have the same issue when running the sample code I provided below?
Can anyone see the contents of a VARCHAR2 index based array when debugging??
Thanks -
How to check whether weblogic server is in DEBUG mode or not
Hi
I want to check in my OSB proxy whether weblogic server is in Debug mode or not?
IF abv thing is not possible ,
I have check whether server is in development mode or production mode from my OSB proxy service?
I m not able to find any doc on this??Please let me know how it can be done?
ThanksThere isnt any other way except for doing a Java Callout. In the callout method you can access the Domain/Server MBean for the information that you seek. Based on the callout result you can go ahead with the logic in your PS..
Here is a sample Java Code to get the Server Log Level and ascertain whether the server is in Production Mode or not.
package com.dell.mbean;
import java.io.IOException;
import java.net.MalformedURLException;
import java.util.Hashtable;
import javax.management.MBeanServerConnection;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServerErrorException;
import javax.management.remote.JMXServiceURL;
import javax.naming.Context;
public class MyConnection {
private static MBeanServerConnection connection;
private static JMXConnector connector;
private static final ObjectName service;
static {
try {
service = new ObjectName("com.bea:Name=DomainRuntimeService,Type=weblogic.management.mbeanservers.domainruntime.DomainRuntimeServiceMBean");
catch (MalformedObjectNameException e) {
throw new AssertionError(e.getMessage());
* Initialize connection to the Domain Runtime MBean Server.
@SuppressWarnings("unchecked")
public static void initConnection(String hostname, String portString,
String username, String password) throws IOException,
MalformedURLException {
String protocol = "t3";
Integer portInteger = Integer.valueOf(portString);
int port = portInteger.intValue();
String jndiroot = "/jndi/";
String mserver = "weblogic.management.mbeanservers.domainruntime";
JMXServiceURL serviceURL = new JMXServiceURL(protocol, hostname, port,
jndiroot + mserver);
Hashtable h = new Hashtable();
h.put(Context.SECURITY_PRINCIPAL, username);
h.put(Context.SECURITY_CREDENTIALS, password);
h.put(JMXConnectorFactory.PROTOCOL_PROVIDER_PACKAGES,"weblogic.management.remote");
h.put("jmx.remote.x.request.waiting.timeout", new Long(10000));
try {
connector = JMXConnectorFactory.connect(serviceURL, h);
connection = connector.getMBeanServerConnection();
} catch(JMXServerErrorException jmxSE)
jmxSE.printStackTrace();
catch(Exception ex)
ex.printStackTrace();
public static String getLogSeverity(String hostName, String portName, String userName, String password) throws Exception {
initConnection(hostName, portName, userName,password);
connector.close();
ObjectName domainConfig = (ObjectName) connection.getAttribute(service,
"DomainConfiguration");
ObjectName logMbean =(ObjectName) connection.getAttribute(domainConfig, "Log");
String logFileFilter = (String) connection.getAttribute(logMbean, "LogFileSeverity");
System.out.println("Log File Filter= "+ logFileFilter.toString());
return logFileFilter;
public static boolean isProductionModeEnabled(String hostName, String portName, String userName, String password) throws Exception {
initConnection(hostName, portName, userName,password);
connector.close();
ObjectName domainConfig = (ObjectName) connection.getAttribute(service,
"DomainConfiguration");
boolean prodEnabled= (Boolean) connection.getAttribute(domainConfig, "ProductionModeEnabled");
System.out.println("Is Production Mode Enabled=" +prodEnabled);
return prodEnabled;
Make sure you have wlclient.jar and wljmxclient.jar as your dependent libraries. -
OracleJSP exception in JDeveloper debug mode
Hi all.
I have a strange problem. Only one JSP in my entire application fails to appear when I debug with local (embeded) OC4J. These are the first lines of the exception message:
Exception:
java.lang.NoClassDefFoundError: _addFile
java.lang.Class java.lang.ClassLoader.defineClass0(java.lang.String, byte[], int, int, java.security.ProtectionDomain)
native code
The class _addFile is generated from addFile.jsp and is available in the output directory. Production application doesn't display the same behavior, this only happens in DEBUG mode in JDeveloper.
OS: win2000
JDK: 1.3.1
JDevaloper is 9.0.2.. something.
Struts
Thanks people.A few quick questions:
1. Can you run (not debug) the application?
2. Have you tried specifically compiling the file addfile.jsp in JDeveloper? - This will usually show the error before attempting to
run it.
To do this, select the file in the navigator and do a right-click Rebuild or Make.. -
Hi,
then i try start the server with the debug mode i get the following
exception:
Starting WebLogic Server ....
<Tue Oct 24 17:45:33 GMT+02:00 2000> <Info> <Management> <Loading
configuration file .\config\virtHoDomain\config.xml...>
Unable to dump log: Fatal initialization exception
Throwable: java.lang.StackOverflowError
java.lang.StackOverflowError
at java.util.Collections$SynchronizedMap.get(Collections.java:1433)
at
weblogic.kernel.ResettableThreadLocal.currentStorage(ResettableThreadLocal.j
ava:100)
at
weblogic.kernel.ResettableThreadLocal.get(ResettableThreadLocal.java:35)
at
weblogic.transaction.internal.TransactionManagerImpl.getOrCreateThreadProp(T
ransactionManagerImpl.java:844)
at
weblogic.transaction.internal.TransactionManagerImpl.getTransaction(Transact
ionManagerImpl.java:359)
at weblogic.transaction.TxHelper.getTransaction(TxHelper.java:34)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:156)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:145)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:138)
at weblogic.logging.LogManager.log(LogManager.java:93)
at weblogic.logging.LogOutputStream.debug(LogOutputStream.java:80)
at weblogic.security.acl.CachingRealm.getUser(CachingRealm.java:775)
at weblogic.security.acl.Security.getCurrentUser(Security.java:238)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:161)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:145)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:138)
at weblogic.logging.LogManager.log(LogManager.java:93)
at weblogic.logging.LogOutputStream.debug(LogOutputStream.java:80)
at weblogic.security.acl.CachingRealm.getUser(CachingRealm.java:775)
at weblogic.security.acl.Security.getCurrentUser(Security.java:238)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:161)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:145)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:138)
at weblogic.logging.LogManager.log(LogManager.java:93)
I even get that exeception if try to initialize the
weblogic.logging.LogManager in a commun class.
I think this is a bug.Hi Lars Klippert
Sorry for the late reply. First of all, thank you for uncovering an untested part of ServerDebug MBean. The Debug Mode for Security Realms currently works for fileRealm but doesnot work for alternate realms(e.g., LDAP realm). We're in the process of fixing this in the future releases(may not be Beta Refresh but will definitely be fixed in GA). I'm attaching a working config.xml(with fileRealm) and the only change you've to make to your config.xml is
<Server
<ServerDebug
DebugSecurityRealm="true"
Name="myserver"
/>
</Server>
If you're debugging a fileRealm then I belive, this serves your purpose. But if you're debugging a Security Realm other than fileRealm and this is blocking you, plz let us know so that this will be fixed with a higer priority. Thanks again for uncovering this. We will let you know as soon as this is fixed.
regards
"Lars Klippert" <[email protected]> wrote:
Hi,
Part from config.xml:
<Server ...>
<ServerDebug Name="virtHoServer" DebugSecurityRealm="false"/>
</Server>
Part from my start-script:
%JAVA_HOME%\bin\java.exe -ms16m -mx64m -classpath
%CLASSPATH% -Dweblogic.Domain=virtHoDomain -Dweblogic.Name=virtHoServer -Dja
va.security.policy==.\lib\weblogic.policy weblogic.Server
As you can see i enable the debug-mode in the config.xml.
I also get the exception then i disable the debug-modus and
initialize the weblogic.logging.LogOutputStream by hand.
For our EntityBeans we have developed a custom error logger
that uses the weblogic.logging.LogOutputStream and it works
fine. Maybe the error only acccours if two or more
weblogic.logging.LogOutputStreams are active...
With the 5.1.0 version of the server everything works fine.
Thanks
"Paul Ferwerda" <[email protected]> schrieb im Newsbeitrag
news:[email protected]...
How exactly are you starting "the server with debug mode"?
Thanks,
Paul
Lars Klippert wrote:
Hi,
then i try start the server with the debug mode i get the following
exception:
Starting WebLogic Server ....
<Tue Oct 24 17:45:33 GMT+02:00 2000> <Info> <Management> <Loading
configuration file .\config\virtHoDomain\config.xml...>
Unable to dump log: Fatal initialization exception
Throwable: java.lang.StackOverflowError
java.lang.StackOverflowError
at
java.util.Collections$SynchronizedMap.get(Collections.java:1433)
at
weblogic.kernel.ResettableThreadLocal.currentStorage(ResettableThreadLocal.j
ava:100)
at
weblogic.kernel.ResettableThreadLocal.get(ResettableThreadLocal.java:35)
at
weblogic.transaction.internal.TransactionManagerImpl.getOrCreateThreadProp(T
ransactionManagerImpl.java:844)
at
weblogic.transaction.internal.TransactionManagerImpl.getTransaction(Transact
ionManagerImpl.java:359)
atweblogic.transaction.TxHelper.getTransaction(TxHelper.java:34)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:156)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:145)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:138)
at weblogic.logging.LogManager.log(LogManager.java:93)
atweblogic.logging.LogOutputStream.debug(LogOutputStream.java:80)
atweblogic.security.acl.CachingRealm.getUser(CachingRealm.java:775)
atweblogic.security.acl.Security.getCurrentUser(Security.java:238)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:161)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:145)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:138)
at weblogic.logging.LogManager.log(LogManager.java:93)
atweblogic.logging.LogOutputStream.debug(LogOutputStream.java:80)
atweblogic.security.acl.CachingRealm.getUser(CachingRealm.java:775)
atweblogic.security.acl.Security.getCurrentUser(Security.java:238)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:161)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:145)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:138)
at weblogic.logging.LogManager.log(LogManager.java:93)
I even get that exeception if try to initialize the
weblogic.logging.LogManager in a commun class.
I think this is a bug.
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