How to throw 2 Exceptions,

Hello,
I have a problem with a method. I would like to do something like:
boolean thisIsATest ( ) throws PepeException,PacoException {
Is it possible ? I already hava thought in wrapping then into a general exception, but I would like to find out if this is possible.
Thanks in advace for your help,
Sitomania

boolean thisIsATest ( ) throws
PepeException,PacoException {The "throws" clause simply states what exceptions the method can throw. You can list as many as you want, separated by commas.
However, you can't actually throw multiple exceptions at once. This is reasonable: there should be a single definable condition that prevents your code from continuing.

Similar Messages

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.

How to throw Exception in Thread.run() method

I want to throw exception in Thread.run() method. How can I do that ?
If I try to compile the Code given below, it does not allow me to compile :
public class ThreadTest {
     public static void main(String[] args) {
     ThreadTest.DyingThread t = new DyingThread();
     t.start();
     static class DyingThread extends Thread {
     public void run() {
     try {
               //some code that may throw some exception here
          } catch (Exception e) {
          throw e;//Want to throw(pass) exception to caller
}

(a) in JDK 1.4+, wrap your exception in RuntimeException:
catch (Exception e)
throw new RuntimeException(e);
[this exception will be caught by ThreadGroup.uncaughtException() of this thread's parent thread group]
In earlier JDKs, use your own wrapping unchecked exception class.
(b) if you know what you are doing, you can make any Java method throw any exception using Thread.stop(Throwable) regardless of what it declares in its "throws" declaration.

How to throw exception..?

class A
void execute() throws Exception
int i=10/0;
public static void main(String args[])
try
new A().execute();
catch(Exception e)
System.out.println(e);
(or)
class A
void execute() throws Exception
try
int i=10/0;
catch(Exception e)
throw e;
public static void main(String args[])
try
new A().execute();
catch(Exception e)
System.out.println(e);
}hi i want to knw which form of throwing of exception is best from the above two program... and also tell me the reason pls... can anyone give the solution.....

There are two general classes of exceptions in java, often called checked and unchecked.
The exception thrown by zero divide, in your example, is a RuntimeException and doesn't require a throws clause.
Most exceptions are throw with a throw statement, but a few kinds are throw directly by the JVM, zero divide or NullPointerExceptions being examples.
If you need to throw an exception you typically create an exception class of your own, by extending the Exception class. That way you can have a catch clause that catches just that one kind of exception and your program can act accordingly.

How to throws exception from subprocess?

Hi,
I use subprocess in my process and I need throws exception from subprocess to my main process.
Thanks for help.
Jakub

The only to throw an exception from a sub process is by leveraging the Exception event (from the event view).
You need to throw the exception, by dragging the Exception event and choose Throw into your subprocess. Then you need to add an exception "catcher" in the parent process to catch the Exception.
Jasmin

How to throw exception from Listener's Event Methods

Hi,
We are using Jdev 10.1.3 and I'm implementing a class that implements EntityListener and RowSetListener interfaces.
The problem that i'm facing is when I override the event methods of the interface (Which don,t throw any exception) , I'm not able to throw any exceptions in overridden methods also. Kidnly guide me on how to achieve this...
Sample Code :
public class GenericHistoryViewObjectImpl extends ViewObjectImpl implements RowSetListener
// this event is fired when a row is deleted from rowset and it registers data in history
public void rowDeleted(DeleteEvent event)
latestEvent = "DEL";
try
GenericHistoryManager.registerDataInHistory(this);
wasLastEventExecutedSuccessfully = 1;
catch (Exception e)
e.printStackTrace();
wasLastEventExecutedSuccessfully = 0;
genericHistViewException = e;
from The mothod public void rowDeleted(DeleteEvent event) of RowSetListener i want to throw an exception ...

JSalonen is totally correct. I would only add that this topic, generally, exposes the differences between checked and unchecked exceptions. Unchecked exceptions extend RuntimeException or Error. Checked exceptions extend Throwable or Exception. There are important differences.
Checked exceptions must specifically be caught or declared in a throws clause of a caller. Unchecked exceptions do not have this restriction. This means you can always 'wrap' (or throw without wrapping) an unchecked exception. Unchecked exceptions are very useful. You can use an existing unchecked exception, or create your own by extending RuntimeException or Error.
To illustrate the difference, let's say we are creating a new user account and storing it in the database. For a checked exception, I might define DuplicateUserRegistration in case a user registers with an existing user name (a non-fatal error case that can be anticipated in system design). However, if the database was down, I would not throw SQLException (which is checked) but rather something like ResourceUnavailableError. This would be unchecked. A calling class (normally) will not be able to realistically handle a situation where the database is down, so why force that caller to either declare throws SQLException or catch SQLException for this instance?
- Saish

Throws Exception

Dear Expert,
May I know how to throw Exception from a thread back to calling program ?
As I always get the following message when compiling the code
cannot override run() in java.lang.Thread; overridden method does not throw java.lang.Exception public void run() throws Exception
Thanks!
w

From what I can see in the javadoc, you can create a subclass of ThreadGroup and override its uncaughtException method, then you'd have to create a Thread that belongs to an instance of your ThreadGroup subclass and have its overridden method set some variable in your main thread. However you should recognize that whatever started your thread may not even exist when it throws that exception, and it may not be sitting around waiting for your thread to throw an exception. You should reconsider that requirement carefully before actually trying to implement it.

How to Throw/Catch Exceptions in BPM

Hi All,
I've seen a couple articles that talk about how to Throw/Catch an execption in a BPM. My question has two parts:
1) RFC Call: I was able to catch an Fault Message in an exception step when calling an RFC (Synchronous Interface). What I wanted to do is use the fault message (exception) and store it in a DB for later review.
2) IDOC: I'm sending an IDOC to R3 from a BPM. The send step is enclosed in a block w/ an exception. The send step is throwing an error (IDOC adpater system error), but the exception is never thrown. My question is: when the error occurrs at the adapter level does it still throw an exception in a BPM?
Thanks for any tip/advice/anything!
Fernando.

Hi Fernando,
1) Define a send step in the exception branch.
2) If u send a IDoc from R/3 to XI and the IDoc adapter is running to an error of course there cant be an exception in ur business process. Usually the IDoc adapter sends back status back up via ALEAUD. In case of success IDoc should have then '03', if the adapter cannot send anything the IDoc should remain at '39'. U should send a ALEAUD in case of exception of BPM switching to status '40', in case of success to '41'.
Regards, Udo

How does it work : String MethdName (argument) throws Exception {}

HI,
I am very new to Java. I was looking through some code written by some other developer.
the code looks like
String MethdName (argument) throws Exception {
// some code here
What it exactly means? Are we forcing this method to always throw an exception? or only if some exception occurs then it will throw the exception?
Regards,
Lucky

It doesnt throw exceptions always.
What this means is that if you code inside the method does use some API or function that throws exceptions when a particular condition is not met, you method would throw the same exception to it's caller. If you didn't add the throw exception clause in your method, you would have to try/catch the exception that would be thrown in your code.
Or else, your code won't compile.
Summary:
A method that throws an uncaught, checked exception must include a throws clause in its declaration.
Read this for some additional info:
[Java Exception Handling|http://ajaxweb.wikidot.com/java-exception-handling]
[Sun Java Tutorial - Exceptions|http://java.sun.com/docs/books/tutorial/essential/exceptions/index.html]

How close server socket without throwing exception to accepted socket

Hi,
In my project, we are closing the server by running a program which connects to server through socket.
Through socket, it asks server to destroy all the process and atlast server exist it connection by
System.exit(0);
Because of this, accepted socket throws a socket exception which clients don't want to see in their log file.
Is there any way to close the server in the accepted socket or to close without throwing exception.
Thanks & Regards,
Nasrin.N

All you have to do is close the ServerSocket then wait for all currently executing accepted-socket threads to exit. Closing the ServerSocket won't do anything to accepted sockets, but terminating the process early via System.exit() will, and this is what you want to avoid.

How to catch exception from shared library on Linux?

Description:
JNI dynamically loads shared library. Shared library throws exception (class CTestException). JNI can not catch it by CTestException name, only (...) works.
My config:
Linux RH AS 4 (x86 64)
gcc: 3.4.5
glib: 2.2.5
Java 1.5.0_06
g++ compiler options for JNI and shared libraries:
g++ -Wl,-E -fPIC -shared ...
There are multiple bugs on Java bugs database regarding C++ ABI incompatibility between Java binaries and stdc++ libraries linked with native code. But I could not find any conclusions on these bugs. Only plans/suggestions to recompile Java on new gcc. These bugs were quite old (regarding Java 1.3, 1.4). Now 1.6 is available but still there is same incompatibility. Maybe I am missing something and there is a way to fix this problem? Like to use specific gcc/glib versions for compilation? How people solve such problems? Any help is appreciated.

It isn't any different; the commands are the same. You can find the exp executable in tehe $ORACLE_HOME/bin directory.

Using sql bulk copy throwing exception -The given value of type String from the data source cannot be converted to type int of the specified target column

Hi All,
I am reading notepads files and inserting data in sql tables from the notepad-
while performing sql bulk copy on this line it throws exception - "bulkcopy.WriteToServer(dt); -"data type related(mentioned in subject )".
Please go through my logic and tell me what to change to avoid this error -
public void Main()
Dts.TaskResult = (int)ScriptResults.Success;
string[] filePaths = Directory.GetFiles(@"C:\Users\jainruc\Desktop\Sudhanshu\master_db\Archive\test\content_insert\");
for (int k = 0; k < filePaths.Length; k++)
string[] lines = System.IO.File.ReadAllLines(filePaths[k]);
//table name needs to extract after = sign
string[] pathArr = filePaths[0].Split('\\');
string tablename = pathArr[9].Split('.')[0];
DataTable dt = new DataTable(tablename);
|
string[] arrColumns = lines[1].Split(new char[] { '|' });
foreach (string col in arrColumns)
dt.Columns.Add(col);
for (int i = 2; i < lines.Length; i++)
string[] columnsvals = lines[i].Split(new char[] { '|' });
DataRow dr = dt.NewRow();
for (int j = 0; j < columnsvals.Length; j++)
//Console.Write(columnsvals[j]);
if (string.IsNullOrEmpty(columnsvals[j]))
dr[j] = DBNull.Value;
else
dr[j] = columnsvals[j];
dt.Rows.Add(dr);
SqlConnection conn = new SqlConnection();
conn.ConnectionString = "Data Source=UI3DATS009X;" + "Initial Catalog=BHI_CSP_DB;" + "User Id=sa;" + "Password=3pp$erv1ce$4";
conn.Open();
SqlBulkCopy bulkcopy = new SqlBulkCopy(conn);
bulkcopy.DestinationTableName = dt.TableName;
bulkcopy.WriteToServer(dt);
conn.Close();
Issue 1:-
I am reading notepad: getting all column and values in my data table now while inserting for date and time or integer field i need to do explicit conversion how to write for specific column before bulkcopy.WriteToServer(dt);
Issue 2:- Notepad does not contains all columns nor in specific sequence in that case i can add few column ehich i am doing now but the issue is now data table will add my columns + notepad columns and while inserting how to assign in perticular colums?
sudhanshu sharma Do good and cast it into river :)

Hi,
I think you'll have to do an explicit column mapping if they are not in exact sequence in both source and destination.
Have a look at this link:
https://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlbulkcopycolumnmapping(v=vs.110).aspx
Good Luck!
Kaur.
Please mark as answer if this resolves your issue.

How to capture Exception error message in Odata ?

Hi,
I am new to sap gateway. Currently i am creating a Odata Service through the transaction SEGW. In the query i have mapped a RFC. When i execute the service sometimes the RFC throws exception like 'No data Found'. But i dont know how to capture the exception returned from the RFC.
I read some threads which says use
RAISE EXCEPTION TYPE /IWBEP/CX_MGW_BUSI_EXCEPTION
      EXPORTING
        textid            = /iwbep/cx_mgw_busi_exception=>business_error
        message       = lv_text
        message_container = io_message_container.
My doubt is since i have not done any code in the DPC method. As said in many threads should i go to DPC_EXT method and redefine the method or how to capture the exception.
Kindly advise. Thanks in advance

Hello Velsankar,
You need not to capture the error messages explicitly by writing custom code in you DPC_EXT if you are using service builder when the return error message table is of type BAPIRET2.
GW itself will handle and return the error messages.
If at all the return error message table is of different type , i mean to say if it is not of type BAPIRET2 then you need to capture explicitly.
The below is the code you need to write in DPC_EXT to capture.
DATA: LO_MECO TYPE REF TO /IWBEP/IF_MESSAGE_CONTAINER.
DATA: LX_BUSI_EXC TYPE REF TO /IWBEP/CX_MGW_BUSI_EXCEPTION.
        LO_MECO = MO_CONTEXT->GET_MESSAGE_CONTAINER( ).
         LO_MECO->ADD_MESSAGES_FROM_BAPI( IT_BAPI_MESSAGES = LT_ERR_RET_TAB ).
         CREATE OBJECT LX_BUSI_EXC
           EXPORTING
             MESSAGE_CONTAINER = LO_MECO.
         RAISE EXCEPTION LX_BUSI_EXC.
Note : where LT_ERR_RET_TAB is your internal table where you would have captured all the error messages.
That is it. You will be able to see the messages .
Regards,
Ashwin

** Throw Exception in BPM - Webservice to JDBC

Hi friends,
I am doing Webservice to JDBC scenario using BPM. I am doing insert data in backend system oracle table by passing inputs from WebService. After insert data in table, JBDC returns the response to web service thru response variable 'insert_count = 1' like this. When I try to insert the same record, that is, employee no as primary key in my table, XI throws an error 'ORA-00001 - unique constraint' in Addtional . We have to pass this information to Web Service. How will we achive this ?
Presently in our BPM design,
1) Exception property of the block as 'Error'.
2) Inside Block, in Sync Send Step (BPM -> JDBC) specified 'Exception/System Error' as 'Error'.
3) Inserted one Exception Handler Brach. In this Brach, inserted one control step. In this step, itself we put a Control Step, the action property of this step is 'Throw Exception'. Here , what we need to set for the 'Exception Property' ..?
Kindly help me friends.

Hi Mahesh,
I refered those scenarios. But, our requirment is we want to take 'Additional Text' option from SXMB_MONI and map to WS source structure one element.
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?> <SAP:Error xmlns:SAP="http://sap.com/xi/XI/Message/30" xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/" SOAP:mustUnderstand="1"><SAP:Category>XIServer</SAP:Category><SAP:Code area="INTERNAL">PL_TIMEOUT</SAP:Code><SAP:P1/><SAP:P2/><SAP:P3/><SAP:P4/><SAP:AdditionalText>TIME OUT REACHED</SAP:AdditionalText><SAP:ApplicationFaultMessage namespace=""/><SAP:Stack>Timeout condition of pipeline reached
</SAP:Stack><SAP:Retry>N</SAP:Retry></SAP:Error>
Could you kindly help me ?

How to send exception in SXMB_MONI from proxy ?

Hi @,
I am working on a scenarion file to proxy where i need to throw exception in xi monitor which can be viewed thru sxmb_moni ,how to do this thru abap cod ein proxy I dont know .
Please suggest any possible solution to do tht .
thx in advance
Regards

They won't be returned to the sender, since it is an async scenario.
But it will appear as an application error in the SXMB_MONI log.
Make sure you define a fault message type and insert it in the inbound interface you use to create inbound proxy.
Then in proxy generation, an exception will be automatically created.
You have to create the code to explicitely thrown this exception by some defined criteria (for example, if the input data fails some validation).
When the exception is thrown, the fault message is sent back to XI and the application error is logged in moni.
Regards,
Henrique.

Throws Exception - a newcomer...

I have written a small amount of code that takes information from a text file and displays it in a GUI (swing) - this is called my RasterDisplay class. However, I am now creating another part of the GUI which will have a button that makes a new RasterDisplay. However, when I try and call my RasterDisplay constructor from within my actionPerformed method (see below) It tells me I have an "unhandled Exception type Exception". I can't throw Exception in the actionPerformed method so how do I get this method to work? Any help would be greatly appreciated - I am a total newcomer to Java and can't make head nor tail of related topics in all the forums...
Cheers!
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;
import java.awt.event.*;
public class RasterToolbar extends JFrame implements ActionListener{
     JButton open;
     public static void main(String[] args) throws Exception{
          new RasterToolbar();
     //method to make display panel with buttons
     public RasterToolbar()throws Exception{
               super("Raster Viewer 1.0 beta");
               setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
               Container contentPane = getContentPane();
               JPanel p1 = new JPanel();
               p1.setLayout(new FlowLayout());
               p1.setBorder(BorderFactory.createEmptyBorder(4,4,4,4));
               open = new JButton("Open Viewer");
               p1.add(open);
               contentPane.add(p1,BorderLayout.WEST);
               open.addActionListener(this);
               pack();
               setVisible(true);
     public void actionPerformed(ActionEvent ev){
     if(ev.getSource()== open){
          System.out.println("Open pressed");
          RasterDisplay viewer = new RasterDisplay(); // HERE IS THE PROBLEM LINE!
}

public void actionPerformed(ActionEvent ev){
     if(ev.getSource()== open){
          System.out.println("Open pressed");
          try {
               RasterDisplay viewer = new RasterDisplay(); // HERE IS THE PROBLEM LINE!
          } catch(Exception e) {
               // do what ever you want here!
               e.printStackTrace();
}

How to throw 2 Exceptions,

Similar Messages

Maybe you are looking for