Embedded Java in BPEL and exception handling

Hello everybody,
i want to use some embedded java code in my BPEL process (bpelx:exec). This code would sometimes throw exceptions. How can i deal with these exceptions to control my BPEL process? I would like, in a sense, to do some catching of java exceptions but at the BPEL level... for example, my java code would throw an exception, that my BPEL process would "catch" and react the way i want. Is it possible to do that?
Thanks for your help!
Nicolas

you need to throw a com.oracle.bpel.client.BPELFault ..
from the code
* This class represents a standard fault that may be thrown by the server
* during run-time. A BPEL fault has defined, minimally, a QName that
* corresponds to the fault name (there are several standard faults that
* are supported, please refer to Appendix A - Standard Faults in the BPEL
* 1.1 specification for a complete list).
* <p>
* This class can only be used from within a <code>bpelx:exec</code> activity;
* the <code>throw</code> activity can be used from BPEL code.
* <p>
* Additional information (such as a fault variable) can be passed through
* as a part. Currently, internal system errors populate error codes and
* summary messages via parts.
hth clemens

Similar Messages

Using embedded Java in BPEL 2.0

I have found a lot of write ups but am having difficulty.
My problem is a failure to deploy by composite. I get the message below:
Redeploying on /Farm_soadev_domain/soadev_domain/AdminServer ...
Redeploying on "/Farm_soadev_domain/soadev_domain/AdminServer" failed!
There was an error deploying/undeploying composite on AdminServer: Error occurred during deployment of component: formatDate to service engine: implementation.bpel for composite: formatData: ORABPEL-05250
Error deploying BPEL suitcase.
error while attempting to deploy the BPEL component file "E:\Oracle\Middleware\user_projects\domains\soadev_domain\servers\AdminServer\dc\soa_c8abc64b-8475-4479-b54b-b36e4f44c37a"; the exception reported is: java.lang.RuntimeException: failed to compile execlets of formatDate
This error contained an exception thrown by the underlying deployment module.
Verify the exception trace in the log (with logging level set to debug mode).
To simplify the issue I have reduced my code snippet to:
/*Write your java code below e.g.
System.out.println("Hello, World");
String testOne = "Hi Mom";
The embedded section looks like:
    <extensionActivity>
      <bpelx:exec name="decodeBinary" language="java">
        <![CDATA[
/*Write your java code below e.g.
System.out.println("Hello, World");
String testOne = "Hi Mom";]]>
      </bpelx:exec>
    </extensionActivity>

I read the blog post here
Embedding Java in BPEL process
Based on that I created this test class to help write code:
The bolded code is the snippet I actually want to implement when I can solve the problem above.
package com.f17.customfunction;
import com.collaxa.cube.engine.ext.bpel.v1.nodes.BPELXExecLet;
public class codeTyper extends BPELXExecLet {
    public codeTyper() {
        super();
    public void exec(){
     // below code gets pasted in here
String input = (String)getVariableData("testfile");
oracle.soa.common.util.Base64Decoder Decoder = new oracle.soa.common.util.Base64Decoder();
try {
byte[] decodedByteArray = oracle.soa.common.util.Base64Decoder.decode(input.getBytes());
setVariableData("compANDstore_merge_InputVariable.AusCreditCollection/ns2:AusCredit/ns2:fileData,decodedByteArray",decodedByteArray);
} catch(Exception e) {
e.printStackTrace();

Pls help..Constructor,setter, getter and Exception Handling Problem

halo, im new in java who learning basic thing and java.awt basic...i face some problem about constructor, setter, and getter.
1. I created a constructor, setter and getter in a file, and create another test file which would like to get the value from the constructor file.
The problem is: when i compile the test file, it come out error msg:cannot find symbol.As i know that is because i miss declare something but i dont know what i miss.I post my code here and help me to solve this problem...thanks
my constructor file...i dont know whether is correct, pls tell me if i miss something...
public class Employee{
     private int empNum;
     private String empName;
     private double empSalary;
     Employee(){
          empNum=0;
          empName="";
          empSalary=0;
     public int getEmpNum(){
          return empNum;
     public String getName(){
          return empName;
     public double getSalary(){
          return empSalary;
     public void setEmpNum(int e){
          empNum = e;
     public void setName(String n){
          empName = n;
     public void setSalary(double sal){
          empSalary = sal;
my test file....
public class TestEmployeeClass{
     public static void main(String args[]){
          Employee e = new Employee();
               e.setEmpNum(100);
               e.setName("abc");
               e.setSalary(1000.00);
               System.out.println(e.getEmpNum());
               System.out.println(e.getName());
               System.out.println(e.getSalary());
}**the program is work if i combine this 2 files coding inside one file(something like the last part of my coding of problem 2)...but i would like to separate them....*
2. Another problem is i am writing one simple program which is using java.awt interface....i would like to add a validation for user input (something like show error msg when user input character and negative number) inside public void actionPerformed(ActionEvent e) ...but i dont have any idea to solve this problem.here is my code and pls help me for some suggestion or coding about exception. thank a lots...
import java.awt.*;
import java.awt.event.*;
public class SnailTravel extends Frame implements ActionListener, WindowListener{
   private Frame frame;
   private Label lblDistance, lblSpeed, lblSpeed2, lblTime, lblTime2, lblComment, lblComment2 ;
   private TextField tfDistance;
   private Button btnCalculate, btnClear;
   public void viewInterface(){
      frame = new Frame("Snail Travel");
      lblDistance = new Label("Distance");
      lblSpeed = new Label("Speed");
      lblSpeed2 = new Label("0.0099km/h");
      lblTime = new Label("Time");
      lblTime2 = new Label("");
      lblComment = new Label("Comment");
      lblComment2 = new Label("");
      tfDistance = new TextField(20);
      btnCalculate = new Button("Calculate");
      btnClear = new Button("Clear");
      frame.setLayout(new GridLayout(5,2));
      frame.add(lblDistance);
      frame.add(tfDistance);
      frame.add(lblSpeed);
      frame.add(lblSpeed2);
      frame.add(lblTime);
      frame.add(lblTime2);
      frame.add(lblComment);
      frame.add(lblComment2);
      frame.add(btnCalculate);
      frame.add(btnClear);
      btnCalculate.addActionListener(this);
      btnClear.addActionListener(this);
      frame.addWindowListener(this);
      frame.setSize(100,100);
      frame.setVisible(true);
      frame.pack();
    public static void main(String [] args) {
        SnailTravel st = new SnailTravel();
        st.viewInterface();
    public void actionPerformed(ActionEvent e) {
       if (e.getSource() == btnCalculate){
          SnailData sd = new SnailData();
       double distance = Double.parseDouble(tfDistance.getText());
       sd.setDistance(distance);
              sd.setSpeed(0.0099);
          sd.setTime(distance/sd.getSpeed());
          String answer = Double.toString(sd.getTime());
          lblTime2.setText(answer);
          lblComment2.setText("But No Exception!!!");
       else
       if(e.getSource() == btnClear){
          tfDistance.setText("");
          lblTime2.setText("");
   public void windowClosing(WindowEvent e){
               System.exit(1);
    public void windowClosed (WindowEvent e) { };
    public void windowDeiconified (WindowEvent e) { };
    public void windowIconified (WindowEvent e) { };
    public void windowActivated (WindowEvent e) { };
    public void windowDeactivated (WindowEvent e) { };
    public void windowOpened(WindowEvent e) { };
class SnailData{
   private double distance;
   private double speed;
   private double time;
   public SnailData(){
      distance = 0;
      speed = 0;
      time = 0;
   public double getDistance(){
      return distance;
   public double getSpeed(){
      return speed;
   public double getTime(){
      return time;
   public void setDistance(double d){
      distance = d;
   public void setSpeed(double s){
      speed = s;
   public void setTime(double t){
      time = t;
}Pls and thanks again for helps....

What i actually want to do is SnailTravel, but i facing some problems, which is the
- Constructor,setter, getter, and
- Exception Handling.
So i create another simple contructor files which name Employee and TestEmployeeClass, to try find out the problem but i failed, it come out error msg "cannot find symbol".
What i want to say that is if i cut below code (SnailTravel) to its own file(SnailData), SnailTravel come out error msg "cannot find symbol".So i force to put them in a same file(SnailTravel) to run properly.
I need help to separate them. (I think i miss some syntax but i dont know what)
And can somebody help me about Exception handling too pls.
class SnailData{
   private double distance;
   private double speed;
   private double time;
   public SnailData(){
      distance = 0;
      speed = 0;
      time = 0;
   public double getDistance(){
      return distance;
   public double getSpeed(){
      return speed;
   public double getTime(){
      return time;
   public void setDistance(double d){
      distance = d;
   public void setSpeed(double s){
      speed = s;
   public void setTime(double t){
      time = t;
}

Error while embedding java into BPEL

Hi Guys,
I am getting the following error while embedding Java into BPEL.
Error: C:\unzipjdev\jdev\system\oracle.j2ee.10.1.3.41.57\embedded-oc4j\.client (The system cannot find the file specified)
i checked for .client content , it is not available in the directory.
Does anybody know about this?

could you please provide the java exec code snippet that you use in bpel? there is a sample under samples/references/JavaExec

How to debug embedded Java in BPEL

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JDev 11.1.1.4

What's not working??

C call-out and exception handling on HP_UX

Does anyone have experiencing calling out to C++ code which uses exception
handling on HP_UX? I'm having trouble getting this to work - details
below.
I'm trying to call out of Forte to some C++ code. The exposed functions
have been specified extern "C". This C++ code makes calls to the Lotus
Notes' C++ API. This API uses exception handling, as does our C++ code.
This all works great on Window NT. It's pretty cool, in fact.
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under HP_UX you have to compile and link using the +eh option in order to
use exception handling. So I did this. My test driver (which calls out to
my user object module) works fine.
So I fired up fcompile, passing in the +eh arguments, and the location of
one of Lotus Notes' shared libraries:
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It works, giving me no errors.
Then I try to call the functions from inside Forte. It gives me the "Not
enough space loading library blah-blah-blah" error message. In my
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going on. So I looked at the log file for the node manager. I saw these
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/usr/lib/dld.sl: Unresolved symbol: __eh_reset_dt_count (data) from
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/usr/lib/dld.sl: Unresolved symbol: __eh_Cqqlo_Object (data) from
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/usr/lib/dld.sl: Unresolved symbol: dealloc_object__18__eh_thrown_objectFi
(code) from /tools/forte/EdgeNotes/userapp/conplus_/cl0/lnapifor.sl
I don't know what this all means. In an attempt to replicate the situation
as closely as possible, I tried linking in the shared library (created by
Forte) to my driver program, and ran my driver program. It worked,
although it gave me the following warnings:
__link_incompatibility: Warning: Shared library
/tools/forte/EdgeNotes/install/lib/libqqfo.sl was not compiled with +eh.
__link_incompatibility: Warning: Shared library
/tools/forte/EdgeNotes/install/lib/libqqrpgs.sl was not compiled with +eh.
__link_incompatibility: Warning: Shared library
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__link_incompatibility: Warning: Shared library
/tools/forte/EdgeNotes/install/lib/libqqknpthrd.sl was not compiled with
+eh.
Hmmm .... After further investigation, I found that the
"__eh_Cqqsh_DynScope", "__eh_dt_count", and
"dealloc_object__18__eh_thrown_objectFi" symbols are referenced from my
user object module, and not from any of Forte's libraries (via the nm
command).
My guess is that there's an incompatibility between the forte run-time, and
my code, and I'm further guessing that this incompatibility is related to
the fact that my code is using exception handing.
I'm in contact with Forte Tech Support, but I wanted to see if anyone on
this list has ever run across this.
Thanks,
Dan
[email protected]

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But when opening Access2003 and linking tables, the ODBC call always fails
BR,
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What is the idea behind Render Response and Exception Handling in TF?

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While searching for answer for my question, I find it hard to decipher this line.
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https://blogs.oracle.com/jdevotnharvest/entry/extending_the_adf_controller_exception_handler
However, better practice is to use try/catch blocks surrounding e.g. calls in a managed bean that could cause exceptions
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MC.9 and MCY1 and Exception Handling in (Logistics Inf. Sys)LIS

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Exception Handling In BPEL By using Catch Blocks or Fault Policies Or Both

I have a confusion regarding
Exception handling :
When Should i go for 1)Catch Block (Remote , or binding ) in bpel for exception handling .
2)Fault Policy , Fault binding.xml
Currently iam using catch blocks , but even fault policy is good , but can i use both...
Currently in My bpel ,when any error occurs i have to send a error notification by Email .
Currently i have exposed the email service which shuts emails and write a file with errored Message.
Hence if any error i will catch i in a parent BPEL, i will just invoke the above email, service .
So anybody can help me by giving the suggestion how to go for the best approach
Edited by: anantwag on Mar 23, 2011 6:31 AM

Currently in My bpel ,when any error occurs i have to send a error notification by Email .
Currently i have exposed the email service which shuts emails and write a file with errored Message.Seeing your use case I will suggest you to use fault handling framework (fault policy). Fault handling framework should be used where you need generic error handling framework which handles all the faults occured in any composite component. Generally BPEL catch block should be used to propagate error info/fault back to the client/to fault handling framework or to consume an error
Regards,
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Exception Handling in Message Mapping and Alert

Hello,
1. Pls let me know the concept of Exception Handling and Alerts.
2. Pls provide some blogs for Exception Handling in Message Mapping.
3.What are Alerts and how it help us in XI. Pls provide some blogs for Alert
4.How are Alerts and Exception Handling can be related say for some scenario
Regards

Hi,
Plz check out these blogs of Sravya on Error Handling:
/people/sravya.talanki2/blog/2006/11/22/error-handling-framework-xiout-of-the-box-episode-1
/people/sravya.talanki2/blog/2006/11/23/error-handling-framework-xiout-of-the-box-episode-2
Also check this SAP Presentation:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/9418d690-0201-0010-85bb-e9b2c1af895b
/people/alessandro.guarneri/blog/2006/01/26/throwing-smart-exceptions-in-xi-graphical-mapping
Error Handling :
http://help.sap.com/saphelp_nw04/helpdata/en/56/b46c3c8bb3d73ee10000000a114084/frameset.htm
Alerts:
/people/michal.krawczyk2/blog/2005/09/09/xi-alerts--troubleshooting-guide
/people/michal.krawczyk2/blog/2005/09/09/xi-alerts--step-by-step
http://help.sap.com/saphelp_nw04/helpdata/en/56/d5b54020c6792ae10000000a155106/content.htm
BPM:
/people/arpit.seth/blog/2005/06/27/rfc-scenario-using-bpm--starter-kit
Working with acknowledgements
regards

Exception handling in ucm

hi,
I have created a custom component that has a service which invokes my custom java methods. I would like to redirect to two error pages depending on the exception thrown by the java method? How exception handling is done in UCM. I see a text box called error messages while creating the service and service actions. But that message is not printed when my java method throws application specific exceptions.
Is there a way to handle the exception at Service configuraration / UI side and redirect to two different meaningful error pages dependinf upon the thye of exception
Thanks,
Siva

Hi Jayakrishna,
In General , there are non execptions in BAPIs, because of the reason, that the exception raised in a SAP envoronment may not mean anything for a non SAP initiator. All the exception situations would only fill the return table(TYpe BAPIRET2 or something like that). If you read that table after the call to the bapi, you can understand what has gone wrong.
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What King of exception handling is done in OA framework code?

Hi All,
I am not a core java person but have to do some OA framework code changes.Wanted to know what kind of exception handling is done in OAF codes?
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OAF java based framework, hence exception handling is similar to how its done in core java. I would advuce to better go through exception handling concepts of core java.
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BPM Exception Handling

I am trying to test my Deadline and Exception handling.But it is not at all working. I will explain what I have done, please guide me where I am going wrong.
1) Block Step. Properties --- Exception == ERROR1
2)Switch Step . Success Branch . Send Step. with a Transport Response. And I am sending to the Mail adapter. And in directory I have provided the WRONG URL FOR THIS Mail.
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3)Dead Lock Branch : Having a Control Step.
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4) Exception Branch.
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Result
I am Seeing a Clock in my SXMB_MONI OUTBOUND_Status column, because I am expecting a TRANSPOT Response, and this going to never happen, so I thought the Deadline monitor will wakeup after 1 minute interval and my Exception branch has to Trigger, but it has never triggered my Deadline branch aswell as my Exception Branch.
WE are in XI SP 12. We dont have CCMS installed yet, even ALERT management is not installed.
Please guide me.
Thanks.

Hi Anand,
I looked into the Transaction SWI2_DEAD and I dont see any listings there.
I am executing 1 Minute deadline Monitoring and from here firing an exception Branch, for my Asynchronous Scenario.
So definitely after a minute , the DeadLine Branch should have been fired. But it didnot take place.
In the mean time I have located an OSS notes OSS note 829921 And I am awaiting my Basis team to apply this note.
symptom
If the execution of an asynchronous method ends with a "system error" or "application error", the work item is not set to the 'ERROR' status.
Other terms
Reason and Prerequisites
This problem is caused by a program error.
Solution
Implement the correction instructions.
Note the following manual changes that must be implemented BEFORE you use SNOTE to implement the corrections:
1. Make sure that the SET_EXECUTION_INTERRUPTED method of the CL_SWF_RUN_RESULT class has the following parameters:
a) IM_CODE, Importing, Optional, Type SWO_RETURN, default Value 0000
b) IM_ERRORTYPE, Importing, Optional, Type SWO_ERRTYP, Default Value 0
Note the following manual changes, which you must carry out AFTER you have implemented the corrections:
1. The M_EXECUTION_INTERRUPTED attribute type of the CL_SWF_RUN_RESULT class must be changed to EXECUTION_INTERRUPTED.

UTL file exception handling oracle 11g

We use oracle 11g
We use UTL file and exception handling in many place. Thanks in advance.
We have many utl program and we are writing same exception handling code ,copy and paste .
It is possible to create new UTL exception procedure and call it.
I am not sure how to write generic UTL exception procedure and reuse the same.
I am learning oracle etl files method.
Please advise.
sample program 1 :
DECLARE
fileHandler UTL_FILE.FILE_TYPE;
BEGIN
fileHandler := UTL_FILE.FOPEN('test_dir', 'test_file.txt', 'W');
UTL_FILE.PUTF(fileHandler, 'Writing TO a file\n');
UTL_FILE.FCLOSE(fileHandler);
EXCEPTION
when utl_file.invalid_path then
raise_application_error(-20001,
'INVALID_PATH: File location or filename was invalid.');
when utl_file.invalid_mode then
raise_application_error(-20002,
'INVALID_MODE: The open_mode parameter in FOPEN was invalid.');
when utl_file.invalid_filehandle then
raise_application_error(-20002,
'INVALID_FILEHANDLE: The file handle was invalid.');
when utl_file.invalid_operation then
raise_application_error(-20003,
'INVALID_OPERATION: The file could not be opened or operated on as requested.');
when utl_file.read_error then
raise_application_error(-20004,
'READ_ERROR: An operating system error occurred during the read operation.');
when utl_file.write_error then
raise_application_error(-20005,
'WRITE_ERROR: An operating system error occurred during the write operation.');
when utl_file.internal_error then
raise_application_error(-20006,
'INTERNAL_ERROR: An unspecified error in PL/SQL.');
when utl_file.invalid_filename then
raise_application_error(-20010, 'The filename parameter is invalid.');
WHEN OTHERS THEN
IF UTL_FILE.IS_OPEN(fileHandler ) THEN
UTL_FILE.FCLOSE (fileHandler );
END IF;
RAISE;
END;
How to write generic procedure of utl exception handling ?
please advise.
create or replace procedure sp_utl_exception
begin
when utl_file.invalid_path then
raise_application_error(-20001,
'INVALID_PATH: File location or filename was invalid.');
when utl_file.invalid_mode then
raise_application_error(-20002,
'INVALID_MODE: The open_mode parameter in FOPEN was invalid.');
when utl_file.invalid_filehandle then
raise_application_error(-20002,
'INVALID_FILEHANDLE: The file handle was invalid.');
when utl_file.invalid_operation then
raise_application_error(-20003,
'INVALID_OPERATION: The file could not be opened or operated on as requested.');
when utl_file.read_error then
raise_application_error(-20004,
'READ_ERROR: An operating system error occurred during the read operation.');
when utl_file.write_error then
raise_application_error(-20005,
'WRITE_ERROR: An operating system error occurred during the write operation.');
when utl_file.internal_error then
raise_application_error(-20006,
'INTERNAL_ERROR: An unspecified error in PL/SQL.');
when utl_file.invalid_filename then
raise_application_error(-20010, 'The filename parameter is invalid.');
WHEN OTHERS THEN
IF UTL_FILE.IS_OPEN(fileHandler ) THEN
UTL_FILE.FCLOSE (fileHandler );
END IF;
RAISE;
end;

Mahesh Kaila wrote:
Hello,
Common procedure to log exception in log file
create or replace procedure sp_utl_exception (log_dir varchar2, log_file varchar2, exception_msg varchar2)
is
hnd_file UTL_FILE.file_type;
begin
hnd_file := UTL_FILE.fopen (log_dir, log_file, 'A');
UTL_FILE.put_line (hnd_file, exception_msg);
UTL_FILE.fclose (hnd_file);
exception
when others
then
raise;
end;
Very poor implementation.
a) Absolutely no need for that exception handler in there. It should be removed.
b) As it's a procedure for logging exceptions relating to UTL_FILE, it would seem error prone to be logging the errors with UTL_FILE. For example, what is it supposed to do if the exception is raised because of lack of disk space in those file locations? How is it going to write out the exception with the disk full? Also, if the exception handler is used by multiple processes, then only 1 process at a time can access the log file to write it's exceptions, so it doesn't scale well. Better logging is done by having an autonomous transaction procedure that writes log/trace messages to dedicated table(s). That also means that the logs etc. can be viewed, as appropriate, from any client using SQL (either manually or through a application written to view logs etc.), rather than requiring physical/remote access to the server o/s to go and view the contents of the file, which in itself could lock the file and prevent any process from writing further logs whilst it's being used.

Oracle exception handling

is this right way do to coding and exception handling
2 cases
if we get overwrite = 1 then update else insert.
I am not sure i have handled proper user defined exception.
Please advise.
create or replace procedure get_rc1(in_file_name in VARCHAR2, overwrite number) is
o_error_number number;
err_exception EXCEPTION;
begin
IF overwrite = 1 THEN
UPDATE store
SET uploaded_by = 'ram'
WHERE file_name = in_file_name;
dbms_output.put_line ('update');
IF (SQL%ROWCOUNT > 0)
THEN
history_log(p_key_id => '123',
desc => 'v_his_desc',
key_word => 'p1' ,
ser_id => 'ram',
status => NULL,
p_error_number => o_error_number);
IF o_error_number <> 0
THEN
RAISE err_exception;
END IF;
END IF;
ELSE
dbms_output.put_line ('insert');
INSERT
INTO store
ID
,FILE_LENGTH
,FILE_NAME
,DOCUMENT_IMAGE
,UPLOADED_DATE
,UPLOADED_BY
,MIME_TYPE
VALUES
1234,
12345,
'123',
NULL ,
sysdate,
'[email protected]',
'balaji'
IF (SQL%ROWCOUNT > 0)
THEN
history_log(p_key_id => '123',
desc => 'v_his_desc',
key_word => 'p2' ,
ser_id => 'ram',
status => NULL,
p_error_number => o_error_number);
IF o_error_number <> 0
THEN
RAISE err_exception;
END IF;
END IF;
END IF;
-- maintaining the history and setting the message
commit;
exception
when others then
dbms_output.put_line ( sqlerrm);
END;

Hi,
user4485803 wrote:
is this right way do to coding and exception handling
2 cases
if we get overwrite = 1 then update else insert.
I am not sure i have handled proper user defined exception.
Please advise.When posting formatted text on this site, type these 6 characters:
\(small letters only, inside curly brackets) before and after each section of formatted text, to preserve spacing.
create or replace procedure get_rc1(in_file_name in VARCHAR2, overwrite number) is
o_error_number number;
err_exception EXCEPTION;
begin
IF overwrite = 1 THEN
UPDATE store
SET uploaded_by = 'ram'
WHERE file_name = in_file_name;
dbms_output.put_line ('update');
IF (SQL%ROWCOUNT > 0)
THEN
history_log(p_key_id => '123',
desc => 'v_his_desc',
key_word => 'p1' ,
ser_id => 'ram',
status => NULL,
p_error_number => o_error_number);
IF o_error_number <> 0Did you mean IF o_error_number 1= 0
? This site doesn't like to display the <> inequality operator. Use the equivalent != operator when posting here.
THEN
RAISE err_exception;
END IF;
END IF;
ELSE
dbms_output.put_line ('insert');
INSERT
INTO store
ID
,FILE_LENGTH
,FILE_NAME
,DOCUMENT_IMAGE
,UPLOADED_DATE
,UPLOADED_BY
,MIME_TYPE
VALUES
1234,
12345,
'123',
NULL ,
sysdate,
'[email protected]',
'balaji'
IF (SQL%ROWCOUNT > 0)
THEN
history_log(p_key_id => '123',
desc => 'v_his_desc',
key_word => 'p2' ,
ser_id => 'ram',
status => NULL,
p_error_number => o_error_number);
IF o_error_number <> 0
THEN
RAISE err_exception;
END IF;
END IF;
END IF;
-- maintaining the history and setting the message
commit;
exception
when others then
dbms_output.put_line ( sqlerrm);
END;That looks like the correct way to raise an error.
If you don't have an EXCEPTION section, then PL/SQL will display an error message, including the line number where the error was detected. If the error occurred deep in a series of called procedures, the error message will include information about what procedures were called, and where. All of that is potentially very important information, and all of that is lost if you have your own EXCEPTION handler, like the one above. Acutally, it would be better to call the code above a exception *hider* , not a handler, because all it's really doing is hiding details about any error.
Use an EXCEPTION sedction only when you can improve on the default exception handling. Even then, you rarely want to use WHEN *OTHERS* ; you want to check for specific errors. For example...
EXCEPTION
WHEN err_exception
THEN
END;
If any exception other than err_exception occurs, this will not hide it.

Embedded Java in BPEL and exception handling

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