Parameters/exceptions of inherited methods or events cannot be changed

Hi All, I want to add parameter in method BBP_MAP_AFTER_BAPI.
but i got message "Parameters/exceptions of inherited methods or events cannot be changed".
Could any one help me with this problem ?
Thanks.
Budituta

You have to change method signatures at the highest superclass level.
I.e. if A is the superclass and B is the subclass of A, then if you want to change the signature of a method in B that is inherited from A, you have to change B.
matt

Similar Messages

Private methods Importing parameter cannot be changed error

Hi Guys,
I have this scenario where I have a private method inside a class which is having an error "Field SAPMF02K cannot be changed".
here is the code for the private method call.
    call method create_bdc_dynpro
         importing IM_PROGRAM = 'SAPMF02K'
                    IM_DYNPRO = '0100'.
code of the method
data: wa_bdcdata type bdcdata.
CLEAR wa_bdcdata.
wa_bdcdata-program = im_program.
wa_bdcdata-dynpro = im_dynpro.
wa_bdcdata-dynbegin = at_true.
APPEND wa_bdcdata to at_bdcdata.
Hope you can help
Thanks!

Howdy,
I think you have your importing/exporting the wrong way round.
The method call should be:
call method create_bdc_dynpro
exporting IM_PROGRAM = 'SAPMF02K'
IM_DYNPRO = '0100'.
And of course in the method definition they should be importing parameters.
Cheers
Alex

Events cannot have multiple exceptions for the same date

I just starting getting this message and could not sync to one of my Google calendars. I'm posting this for others who might get the same problem.
I didn't find the answer on these forums but did find it on this thread on Google:
http://www.google.com/support/forum/p/Calendar/thread?tid=241155f758d9e2a4&hl=en
Here's the important excerpt:
"I had a client, who just had this same issue, nothing to do with Google cals.
It was apparently, in my best guess, a corruption of the subscribed cal.
*I did a get info on the cal, copied the URL, deleted the cal, then re-subscribed to it by pasting in the URL, and now it's working fine*."

I've been having the same problem with my iCal calendars and the "Events cannot have multiple exceptions for the same date" error. Once it gets going, it uses up a lot of the CPU and resources. After reinstalling iCal, all my calendars were missing and I could not even resubscribe to them.
I took my MacBook Pro to the Apple Store, and they were able to solve the problem by moving some of the iCal files from their existing folders out to the desktop, and reopening the program. That got it working, however, now I'm having the same problem again. So back to square one. Anyone else having this issue and know the cause?
My setup is my MacBook Pro uses Entourage, use that calendar in my iCal. And I subscribe to two calendars my wife publishes on her Macbook. We're both using Snow Leopard.

What are the parameters in Call transaction method?

Hi ABAPER'S,
Please give me what are the parameters in call transaction method?
Thanks,
Prakash

Processing batch input data with CALL TRANSACTION USING is the faster of the two recommended data transfer methods. In this method, legacy data is processed inline in your data transfer program.
Syntax:
CALL TRANSACTION <tcode>
USING <bdc_tab>
MODE <mode>
UPDATE <update>
<tcode> : Transaction code
<bdc_tab> : Internal table of structure BDCDATA.
<mode> : Display mode:
A
Display all
E
Display errors only
N
No display
<update> : Update mode:
S
Synchronous
A
Asynchronous
L
Local update
A program that uses CALL TRANSACTION USING to process legacy data should execute the following steps:
Prepare a BDCDATA structure for the transaction that you wish to run.
With a CALL TRANSACTION USING statement, call the transaction and prepare the BDCDATA structure. For example:
CALL TRANSACTION 'TFCA' USING BDCDATA
MODE 'A'
UPDATE 'S'.
MESSAGES INTO MESSTAB.
IF SY-SUBRC <> 0.
<Error_handling>.
ENDIF.
The MODE Parameter
You can use the MODE parameter to specify whether data transfer processing should be displayed as it happens. You can choose between three modes:
A Display all. All screens and the data that goes in them appear when you run your program.
N No display. All screens are processed invisibly, regardless of whether there are errors or not. Control returns to your program as soon as transaction processing is finished.
E Display errors only. The transaction goes into display mode as soon as an error in one of the screens is detected. You can then correct the error.
The display modes are the same as those that are available for processing batch input sessions.
The UPDATE Parameter
You use the UPDATE parameter to specify how updates produced by a transaction should be processed. You can select between these modes:
A Asynchronous updating. In this mode, the called transaction does not wait for any updates it produces to be completed. It simply passes the updates to the SAP update service. Asynchronous processing therefore usually results in faster execution of your data transfer program.
Asynchronous processing is NOT recommended for processing any larger amount of data. This is because the called transaction receives no completion message from the update module in asynchronous updating. The calling data transfer program, in turn, cannot determine whether a called transaction ended with a successful update of the database or not.
If you use asynchronous updating, then you will need to use the update management facility (Transaction SM12) to check whether updates have been terminated abnormally during session processing. Error analysis and recovery is less convenient than with synchronous updating.
S Synchronous updating. In this mode, the called transaction waits for any updates that it produces to be completed. Execution is slower than with asynchronous updating because called transactions wait for updating to be completed. However, the called transaction is able to return any update error message that occurs to your program. It is much easier for you to analyze and recover from errors.
L Local updating. If you update data locally, the update of the database will not be processed in a separate process, but in the process of the calling program. (See the ABAP keyword documentation on SET UPDATE TASK LOCAL for more information.)
The MESSAGES Parameter
The MESSAGES specification indicates that all system messages issued during a CALL TRANSACTION USING are written into the internal table <MESSTAB> . The internal table must have the structure BDCMSGCOLL .
You can record the messages issued by Transaction TFCA in table MESSTAB with the following coding:
(This example uses a flight connection that does not exist to trigger an error in the transaction.)
DATA: BEGIN OF BDCDATA OCCURS 100.
INCLUDE STRUCTURE BDCDATA.
DATA: END OF BDCDATA.
DATA: BEGIN OF MESSTAB OCCURS 10.
INCLUDE STRUCTURE BDCMSGCOLL.
DATA: END OF MESSTAB.
BDCDATA-PROGRAM = 'SAPMTFCA'.
BDCDATA-DYNPRO = '0100'.
BDCDATA-DYNBEGIN = 'X'.
APPEND BDCDATA.
CLEAR BDCDATA.
BDCDATA-FNAM = 'SFLIGHT-CARRID'.
BDCDATA-FVAL = 'XX'.
APPEND BDCDATA.
BDCDATA-FNAM = 'SFLIGHT-CONNID'.
BDCDATA-FVAL = '0400'.
APPEND BDCDATA.
CALL TRANSACTION 'TFCA' USING BDCDATA MODE 'N'
MESSAGES INTO MESSTAB.
LOOP AT MESSTAB.
WRITE: / MESSTAB-TCODE,
MESSTAB-DYNAME,
MESSTAB-DYNUMB,
MESSTAB-MSGTYP,
MESSTAB-MSGSPRA,
MESSTAB-MSGID,
MESSTAB-MSGNR.
ENDLOOP.
The following figures show the return codes from CALL TRANSACTION USING and the system fields that contain message information from the called transaction. As the return code chart shows, return codes above 1000 are reserved for data transfer. If you use the MESSAGES INTO <table> option, then you do not need to query the system fields shown below; their contents are automatically written into the message table. You can loop over the message table to write out any messages that were entered into it.
Return codes:
Value
Explanation
0
Successful
<=1000
Error in dialog program
> 1000
Batch input error
System fields:
Name:
Explanation:
SY-MSGID
Message-ID
SY-MSGTY
Message type (E,I,W,S,A,X)
SY-MSGNO
Message number
SY-MSGV1
Message variable 1
SY-MSGV2
Message variable 2
SY-MSGV3
Message variable 3
SY-MSGV4
Message variable 4
Error Analysis and Restart Capability
Unlike batch input methods using sessions, CALL TRANSACTION USING processing does not provide any special handling for incorrect transactions. There is no restart capability for transactions that contain errors or produce update failures.
You can handle incorrect transactions by using update mode S (synchronous updating) and checking the return code from CALL TRANSACTION USING. If the return code is anything other than 0, then you should do the following:
write out or save the message table
use the BDCDATA table that you generated for the CALL TRANSACTION USING to generate a batch input session for the faulty transaction. You can then analyze the faulty transaction and correct the error using the tools provided in the batch input management facility.

Inherited Method Conflict

An inherited method which is not overridden should behave as if the class had that method itself, but I have found a polymorphism conflict where they act differently.
Here is an example where a subclass provides a special method for the parent interface.
public interface iOne { }
public interface iTwo extends iOne { }
public class Alpha
{     public void a(iTwo i){;}     }
public class Beta extends Alpha
{     public void a(iOne i){;} }
public class Delta implements iTwo { }
public class Run
     public void run()
     { (new Beta()).a(new Delta()); }
}Errors on compile.
Run.java:9: reference to a is ambiguous, both method a(iTwo) in Alpha and method a(iOne) in Beta match
          b.a(d);
but if the two methods are moved into the same class
public class Alpha { }
public class Beta extends Alpha
     public void a(iOne i){;}
     public void a(iTwo i){;}
}It compiles and runs fine.
Does anyone have any idea why this happens? I would prefer to keep the appropriate methods in the parent so they are re-useable.

Let me see if I've got it by paraphrasing the section of the JLS that schapel pointed out:
Let 'a' be a method name having 1 parameter 'i'
- one declaration appears within a class Beta and the type of the parameter is iOne
- the other declaration appears within a class Alpha and the type of the parameter is iTwo ...
Then the method 'a' declared in Beta is more specific than the method declared in Alpha if and only if both of the following are true:
1) Beta can be converted to Alpha by method invocation conversion. (personally I don't understand this line, how can you convert a class by 'method invocation conversion' ? shouldn't they have said 'convert..by casting'? If they essentially mean casting, then you can convert a Beta to an Alpha).
2) 'i' (of type iOne) can be converted to iTwo by method invocation conversion. (you cannot convert an iOne to an iTwo).
Note that if you reverse them and say:
Then the method 'a' declared in Alpha is more specific than the method declared in Beta if and only if both of the following are true:
1) Alpha can be converted to Beta by method invocation conversion. (an Alpha cannot be converted to a Beta)
2) 'i' (of type iTwo) can be converted to iOne by method invocation conversion. (you can convert a iTwo to an iOne).
Either way you look at it, both statements cannot be true, thus, there is no 'a' method that is more specific.

Redefinition / Overwriting of inherited method using class-builder

Hi,
I have a class which inherits some methods from it's baseclass. I want so overwrite ( re-define ) some of the methods from the baseclass using se80 / se24.
How can this be done ?
Best Regards,
Frank

Hi,
go se80 1) enter the class name which u have inherited from the base class
2) in the herarchy ...methods---->Inherited Methods
3) right click on the method which u have to redifine.
4) select redifine option.
5) ur method will be placed under redifination list.
6) go write the code
note :- U cannot redifine final Method...Appropriate message will be shown
save and activate.
Mark Helpful answers
Message was edited by: Manoj Gupta

Overriding Inherited methods

why cant we override the inherited methods with more secure access modifier (private)..... while if we do the apposite ie override with more non secure access modifiers , java is able to distinguish them and call the appropriate method or pop up the syntax error.. i am not able to understand the concept ... if any one could give a practical example it would helpful to me to understand...

rajeshrocks25 wrote:
Hey, correct me i am wrong.
When we inherit Java loads all the members of the super class and we override or hide them then it simply ignores the superclass members ri8???
thats what happening in the above code?I strongly suggest rereading the tutorial for Polymorphism or searching Google for alternative explanations for "Java Polymorphism", it doesn't sound like the concept has fully sunk in yet. As for a direct answer, at the bottom of the polymorphism tutorial I linked earlier they mention:
The Java virtual machine (JVM) calls the appropriate method for the object that is referred to in each variable. It does not call the method that is defined by the variable's type. This behavior is referred to as virtual method invocation and demonstrates an aspect of the important polymorphism features in the Java language.To add, if the object being referred to does not contain the appropriate method, then the JVM will look for an appropriate method in the superclass, and the superclass of the superclass until the appropriate method is found.
Also to clarify your confusion earlier, if a subclass A extends a class B, then A is considered a B so there is no use in casting A to B. In a more practical sense, imagine a [Boy] extending a [Man]. The [Boy] is of course a [Boy] because that is what we have defined him as. But the [Boy] is also a [Man] because he extends the [Man]. Therefore casting a [Boy] into a [Man] is pointless, because he already is indeed a [Man], just a subclass in the form of a [Boy].
Furthermore if we declare a [Man] and instantiate him with a [Boy] then invoking a method talk(), [Boy] is inspected for the appropriate method talk(), if it has not been overridden then the JVM will look in [Man] and calls the appropriate method. Alternatively if we declare a [Man] and instantiate him as a [Man] then invoking the method talk(), [Man] is inspected for the appropriate method. It might also be of worth to note the instantiated [Man] cannot be cast into a [Boy], because a [Boy] is a subclass of [Man] and may contain properties or methods undefined by [Man].
Mel

Error on /SafeMode: error while trying to run project uncaught exception thrown by method called

i try run VS 2012 with /SafeMode. I create new empty Winform. When I start debug, I got:
"error while trying to run project uncaught exception thrown by method called through reflection"

Hi Matanya Zac，
Did you restart your machine? How about installing the VS2012 update 4?
>>error while trying to run project uncaught exception thrown by method
Did you install the VS update in your VS IDE? I met this issue before which was related to the VS update:
https://social.msdn.microsoft.com/Forums/vstudio/en-US/5ead8ee9-ea09-4060-88b0-ee2e2044ff82/error-while-trying-to-run-a-project-uncaught-exception-thrown-by-method-called-through-reflection?forum=vsdebug
If still no help, I suggest you repair your VS, and then restart your machine, test the result.
Best Regards,
Jack
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How to throw exception in run() method of Runnable?

Hi, everyone:
I want to know how to throw exception in run() method of interface Runnable. Since there is no throwable exception declared in run() method of interface Runnable in Java API specification.
Thanks in advance,
George

Thanks, jfbriere.
I must add though that if your run() methodis
executed after a call to Thread.start(), then
it is not a good choice to throw anyRuntimeException
from the run() method.
The reason is that the thrown exception won't be
handled appropriately by a try-catch block.Why do you say that "the thrown exception won't be
handled appropriately by a try-catch block"? Can you
explain it in more detail?
regards,
George
Because the other thread runs concurrently with and independently of the parent thread, there's no way you can write a try/catch that will handle the new thread's exception: try {
myThread.start();
catch (TheExceptionYouWantToThrowFromRun exc) {
handle it
do the next thing This won't work because the parent thread just continues on after myThread.start(). Start() doesn't throw the exception--run() does. And our parent thread here has lost touch with the child thread--it just moves on to "do the next thing."
Now, you can do some exception handling with ThreadGroup and uncaughtException(), but make sure you understand why the above won't work, in case that was what you were planning to do.

Error in Raising exceptions in a method and handling the same in the WF

Hi All
I tried to implement Raising exceptions in a method and handling the same in the workflow
in the same way given in SAPtechnical site .
1.by adding a error msg in exception parameter .
2. if the select query fails, to fetch the agent then :exit_return 9001 'ztable name' space space space.
3.in the Background activity in which this method is called there automatically one outcome appears ,and I hav acitvated that outcome and in that done what need to be done for that error handling - just send a mail to concern person .
4. in the normal outcome of the activity , the step to be executed are there .
but its not working , if exception come then the WF stuck there only . it do not follow the exception outcome .
Kindly help me , How can I do the exception handly in WF.
thanks & Regards
Kakoli

> That is usually the case - you catch an error in the underlying program and pass that back so the workflow can go into error.
> You're doing it correctly.
I don't think that's quite right.
If you define an error/exception in a method, it is automatically mapped to an outcome of the step/task.
If you activate that outcome, then you can handle the exception in a branch of the workflow.
For example: 'Remote connection is down, please contact Basis'
The step should only go into error if an outcome occurs that you have NOT activated.
So the original question is valid. Please give some more information on what the error message is..
chrs
Paul

Exception Handling Within Methods

I'm currently looking over exception handling within Java and have what whats probably a very simple question to answer!
If within a method I have a try and catch block to handle all exceptions that the specific method may throw, do I then also need to specify the exceptions that the method will throw within its signature? (As I have already handled them).

After a bit more reading I think i've found my answer.
You only declare a method throws an exception if you wish to deal with it further up the method call stack. This raises another question though. If I did handle the exceptions that my method could throw within the method itself as well as declaring the method to throw the exceptions within its signature. What would happen?

Communcation Channel Type E-Mail Receiver Exception thrown in method proces

Hi,
I use a scenario R/3 IDOC -> XI -> Email. It is working, however the email is send 4 times.
I have an error within a communication channel.
Adaptertype E-Mail Direction Receiver
The communcation channel message log show the following entry:
2008-08-14 12:47:09 Erfolgreich Message wurde erfolgreich vom Messaging-System empfangen. Profil: XI URL: http://host:port/MessagingSystem/receive/AFW/XI Credential (User): PIISUSER
2008-08-14 12:47:09 Erfolgreich Mit der Verbindung Mail_http://sap.com/xi/XI/System. Versuch die Message in die Empfangs-Queue zu stellen
2008-08-14 12:47:09 Erfolgreich Message erfolgreich in Queue gestellt
2008-08-14 12:47:09 Erfolgreich Die Message wurde erfolgreich aus der Empfangs-Queue abgerufen
2008-08-14 12:47:09 Erfolgreich Der Status der Message wurde auf DLNG gesetzt
2008-08-14 12:47:09 Erfolgreich Liefert an Kanal: CC_Application_Mail_RCV
2008-08-14 12:47:09 Erfolgreich MP: Tritt in den Modulprozessor ein
2008-08-14 12:47:09 Erfolgreich MP: Lokales Modul localejbs/sap.com/com.sap.aii.adapter.mail.app/XIMailAdapterBean wird verarbeitet
2008-08-14 12:47:09 Erfolgreich Mail: message entering the adapter
2008-08-14 12:47:09 Erfolgreich Mail: Receiver adapter entered with qos ExactlyOnce
2008-08-14 12:47:09 Erfolgreich Mail: calling the adpter for processing
2008-08-14 12:47:09 Erfolgreich Mail: call completed
2008-08-14 12:47:09 Erfolgreich Mail: continuing to response message 58650010-69ee-11dd-bc24-0018fe76622e
2008-08-14 12:47:09 Erfolgreich Mail: sending a delivery ack ...
2008-08-14 12:47:09 Erfolgreich Mail: sent a delivery ack
2008-08-14 12:47:09 Erfolgreich MP: Lokales Modul localejbs/AF_Modules/MessageTransformBean wird verarbeitet
2008-08-14 12:47:09 Fehler MP: Ausnahme aufgetreten mit Grund com.sap.engine.services.ejb.exceptions.BaseTransactionRolledbackLocalException: Exception thrown in method process. The transaction is marked for rollback.
2008-08-14 12:47:09 Fehler Ausnahme aufgetreten beim Adapter-Framework: Exception thrown in method process. The transaction is marked for rollback.
2008-08-14 12:47:09 Fehler Zustellung der Message an die Anwendung über Mail_http://sap.com/xi/XI/System ist fehlgeschlagen weil: com.sap.aii.af.ra.ms.api.RecoverableException: Exception thrown in method process. The transaction is marked for rollback.: com.sap.engine.services.ejb.exceptions.BaseTransactionRolledbackLocalException: Exception thrown in method process. The transaction is marked for rollback.
2008-08-14 12:47:09 Erfolgreich Der Status der Message wurde auf WAIT gesetzt
2008-08-14 12:47:09 Erfolgreich Die Zustellung der asynchronen Message um Thu Aug 14 12:52:09 CEST 2008 wurde erfolgreich eingeplant.
Does anybody know what do to?
Best regards,
Nils Kloth

Hi,
it seems that the module processing is not working, if the flag keep attachments is not checked.
Best regards,
Nils Kloth

How can I access the protected inherited method

Hi guys:
I know I can use getDeclaredMethod to get some methods,but my question how can I get a protected inherited method? for example
class A{
protected void test(){}
class B extends A{
public String getValue(){}
class C{
public static void main(Strin[] args){
//at here I want to access "test" method by reflection,but I dont know how?
thanks advance!

Indeed it does. If you want to find the declared methods of the superclass then you should be able to figure out how to do that: find the superclass, find its declared methods.

Pass 2 different parameters from 2 different methods to 1 method

Hi all,
To the method "renameFile" my parameter is "File dst" and
to the method "renameCode" my parameter is "String name".
But I need to get both the parameters "File dst" and "String name" into a single method. Could anyone please help me with this. My code is:
public static void renameFile(File dst) throws IOException
public static void renameCode(String name) throws IOException
But I need both the parameters into the following method as:
public static void filename(File dst, String name) throws IOException
}

The following is my entire class code:
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
public class filesMove
/** Creates a new instance of filesMove */
public filesMove()
public void copyDirectory(File srcDir, File dstDir) throws IOException
copyFile(srcDir, dstDir);
public static void copyFile(File src, File dst) throws IOException
InputStream in = new FileInputStream(src);
OutputStream out = new FileOutputStream(dst);
byte[] buf = new byte[1024];
int len;
while((len = in.read(buf)) > 0)
out.write(buf, 0, len);
in.close();
out.close();
renameFile(dst);
public static void renameFile(File dst) throws IOException
combined(code);
public static void renameCode(String name) throws IOException
combined(code);
public static void combined(File dst, String name) throws IOException
//Please tell me how do I get both the parameters "File dst, String name" from the above two methods. Presently its throwing an error
}

Exception while proccessing method SMARTSYNC

Hi,
Sometimes I get the following exception when synchronizing MAM 2.5 with the Middleware:
- Exception while proccessing method SMARTSYNC : com.sap.ip.me.smartsync.sync.InboundTransformException: java.lang.NullPointerException : java.lang.NullPointerException
In the middleware logs I get the following messages:
- Container with unknown conversation id 1F2CF32B02C80D4582A950480C3CAFAF for method SMARTSYNC received
- inbound processing for conversation id 1F2CF32B02C80D4582A950480C3CAFAF / 1F2CF32B02C80D4582A950480C3CAFAF stopped, because some containers could not be processed
- Exception while proccessing method SMARTSYNC (root cause: java.lang.NullPointerException [com.sap.ip.me.smartsync.sync.InboundTransformException])
But it the next synch it works properly and without any problem. Does anyone had seen this? Any idea why this exception is shown? Thanks in advance.

The current level for middleware is WEB AS 6.40 SP13, SAP BASIS 6.40 SP13, SAP ABA 6.40 SP13, SAP BW 3.50 SP 13, PI BASIS 2004 1 640 SP10. I think these are the latest one.
I check the SAP Note 774061 and the modifications are in place. Later on I will check the Composite Note for this SP level.
Thanks.

Parameters/exceptions of inherited methods or events cannot be changed

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