Is it possible to dump local variables value in VEH or SEH exception handler?
In the exception context, we can get the registers SS,SP,BP... Can I get the local vairable value by these registers? and how?
If we return EXCEPTION_CONTINUE_EXECUTION in the exception handler, the function will continue execution, the local variables still in memory(stack) when the exception handler running? Can I retrieve the local variables by ReadProcessMemory() in the exception handler?
Update:
Can I get full dump in the exception handler and search the local variable value in the dump file? I can know part of the variable value.
Related
I know that registers r0~r3,r12,PSR,LR are saved when an exception call occurs in cortex-m.
But I'm confused that exception call in cortex-A
Q1. When a exception call occurs in cortex-A, it only saved LR and CPSR register?
Q2. If I want to save the context to the stack, do I have to add the code myself?
Currently I have a use case where I need to invoke a Mysql Procedure thorough Oracle BPEL. The adapter configuration is fine and shows me the available In/Out parameters during the configuration and the composite is deployed successfully. However the invocation is failed during the webs service call.
Any idea about the issue particularly in SOA. The weblogic version is 12c & I am using jDev 11g for the composite development.
Below is the error message received during the web service call-
The selected operation process could not be invoked.
A fault occurred while invoking the webservice operation. The fault is : <env:Fault xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
<faultcode>env:Server</faultcode>
<faultstring>Exception occurred when binding was invoked.
Exception occurred during invocation of JCA binding: "JCA Binding execute of Reference operation 'getUserFirstName' failed due to: Register out parameter error.
Error registering parameter First_Name as an out parameter.
An error occurred when registering parameter First_Name as an out parameter of the getUserName API. Cause: java.sql.SQLException: Parameter number 2 is not an OUT parameter
Check to ensure that the parameter is a valid IN/OUT or OUT parameter of the API. This exception is considered retriable, likely due to a communication failure. To classify it as non-retriable instead add property nonRetriableErrorCodes with value "0" to your deployment descriptor (i.e. weblogic-ra.xml). To auto retry a retriable fault set these composite.xml properties for this invoke: jca.retry.interval, jca.retry.count, and jca.retry.backoff. All properties are integers.
".
The invoked JCA adapter raised a resource exception.
Please examine the above error message carefully to determine a resolution.
</faultstring>
<faultactor/>
<detail>
<exception>Parameter number 2 is not an OUT parameter</exception>
</detail>
</env:Fault>
oracle.sysman.emInternalSDK.webservices.util.SoapTestException: Client received SOAP Fault from server : Exception occurred when binding was invoked.
Exception occurred during invocation of JCA binding: "JCA Binding execute of Reference operation 'getUserFirstName' failed due to: Register out parameter error.
Error registering parameter First_Name as an out parameter.
An error occurred when registering parameter First_Name as an out parameter of the getUserName API. Cause: java.sql.SQLException: Parameter number 2 is not an OUT parameter
Check to ensure that the parameter is a valid IN/OUT or OUT parameter of the API. This exception is considered retriable, likely due to a communication failure. To classify it as non-retriable instead add property nonRetriableErrorCodes with value "0" to your deployment descriptor (i.e. weblogic-ra.xml). To auto retry a retriable fault set these composite.xml properties for this invoke: jca.retry.interval, jca.retry.count, and jca.retry.backoff. All properties are integers.
".
The invoked JCA adapter raised a resource exception.
Please examine the above error message carefully to determine a resolution.
Step wise DB Adapter configuration is here-
https://drive.google.com/open?id=1cei0OFje1dmefDn7PfBIjxW4vb81Ngez
I think you made a mistake while you are selecting in and out parameters, probably you have added more variable than your database are expecting. Please look at the following and if possible send more details like screenshots of your db adapter configurations and db table
java.sql.SQLException: Parameter number 2 is not an OUT parameter
I have created a SSIS package for migrating data from one sql server database to another. The tasks are created in a sequence container.
I have created events in the event handler and added the send mail task for sending email and getting the following error. I get this error even when I try to evaluate the expression in the expression builder. Please note that I am getting the error on the onTaskFailed event handler. I think the system error variables are not accessible in that event. Do I really need that event handler
I can see the variable in the collection. Not sure of how the scope affects it.
This is definitely a scoping issue. The system variable 'ErrorDescription' is only avialable at 'OnError' event handler and can't be used in 'TaskFailed' event handler. As to the question of if you need it or not, that is something your business logic should dictate. I would suggest to move your code to 'OnError' event handler.
I have an Apache Camel route which handles messages from a queue. To better understand what is happening at runtime I also keep the execution state in a database (number of retries, last execution state,...). I would like to use the redelivery mechanism from the exception handler but which performs some processing on every failure to update my database record.
from("jms:myinputqueue")
.onException(RetriableException.class)
.maximumRedeliveries(5)
.maximumRedeliveryDelay(10000)
.useOriginalMessage()
.to("log:store error information in database about each attempt") // (1)
.end() // onException
.to("log:apply business logic here which can throw exceptions")
;
The part (1) is only executed after all retries are exhausted, so only once.
I've read Apache Camel- Message Redelivery happens before onexception block executes but the suggested solution ''onRedelivery'' is executed before the beginning of a new retry. I need to store the result on each failure so I can save the last state (error message) in the database.
Any suggestions ?
There is an onExceptionOccurred processor you can use that is called when the exception happened.
Its included in Camel 2.17 onwards: https://issues.apache.org/jira/browse/CAMEL-9069
I'm working on a mobile flex application and I was wondering if there is a possibility to get the result of the trace function inside the application and not in the console to display it while running and without PC.
The trace command is usable only in debug mode and it display the text/value only in console...
trace(...parameters):void
Displays expressions, or writes to log files, while debugging. A single trace statement can support multiple arguments. If any argument in a trace statement includes a data type other than a String, the trace function invokes the associated toString() method for that data type. For example, if the argument is a Boolean value the trace function invokes Boolean.toString() and displays the return value.
If you need a different log system you can implement one...
ie.
You can create a class called Logger that takes a parameter and print to a label or directly to a file...