Catch All Exception

Hi,
I'm quite familiar with Oracle SOA, OSB , CEP stuff. Just exploring BPM and here i have a question on error handling.
I see we can catch all system or business exceptions using a event sub process. and handle it. But i see no means to see what the error message is?
Lets say i would like to email admin with the error message, from where can i retrieve the error message from?
Any pointers on this is much appreciated.
Thanks,
Prakash

I think you can use Error Events (Component Palette, from the Catch Events section select Error Event) and then log it or email it .
Ref- 19.5 Handling Exceptions in a Business Process
http://docs.oracle.com/cd/E21764_01/doc.1111/e15176/errors_bpmpd.htm
Thanks
Rupesh

Similar Messages

Best Practice: JavaFX pattern for "Catching all Exceptions"

Hi,
what is on the current JavaFX Standard the best way to catch all Exceptions (centralized) within my JavaFX application...
I read thread outside this Oracle Forum who recommend following:
1. Thread.setDefaultUncaughtExceptionHandler(new MyExceptionHandler());
--> catch all runtime exceptions
2. http://stackoverflow.com/questions/12318861/javafx-2-catching-all-runtime-exceptions
--> Implementing some source code who wrap the current GUI thread...
3. I read something like:
"JavaFX exception handling is almost identical to that in Java, apart from the fact that checked exceptions are handled in the same way as unchecked exceptions. This is good news for most Java programmers moving to JavaFX because you are no longer obliged to catch and handle exceptions."
Sounds very good! But where/how can I do this ???
Edited by: wschele on 19.02.2013 04:58
Edited by: wschele on 19.02.2013 05:16

No recommendation whats the best way to do it?
Catching each Exception in different layers is boring ! :-(

Best way to catch all exceptions

What is the best way to proceed if I would like to catch all exceptions in my Swing app?
If there is an unexpected RuntimeException in my app, I would like to display an error message rather than having the program react silently. Is there a good way of making sure all uncaught exceptions are trapped and reported somewhere in the end? And are there any special inconveniences to such a strategy?

A very similar question was asked recently. Various solutions were proposed in [this topic|http://forums.sun.com/thread.jspa?forumID=57&threadID=5416873] .

A catch-all "exception handler" - what's the end of an stack trace?

I've created an application that is beeing tested these days, and I thought it would be a good idea to implement a "catch-all" exception handler so that I could notify the user when an exception occur (so that he may stop, send me the log, and to prevent errors that occur as a result of the first one).
The way I've started implementing it is I redirect error out to a custom output stream:
public class ConsoleOutStream extends ByteArrayOutputStream {
    private JFrame owner;
    public ConsoleOutStream(JFrame owner) {
        this.owner = owner;
     * Writes <code>len</code> bytes from the specified byte array
     * starting at offset <code>off</code> to this byte array output stream.
     * @param   b     the data.
     * @param   off   the start offset in the data.
     * @param   len   the number of bytes to write.
    public synchronized void write(byte b[], int off, int len) {
        super.write(b, off, len);
        checkForExceptions();
     * Writes the specified byte to this byte array output stream.
     * @param   b   the byte to be written.
    public synchronized void write(int b) {
        super.write(b);
        checkForExceptions();
    private void checkForExceptions() {
        reset();
        if(this.toString().indexOf("xception") != -1) {
            System.out.println("Exception!!\n\n");
            System.out.println(this.toString());
}then i redirect System.err:
PrintStream out = new PrintStream(new ConsoleOutStream(this));
System.setErr(out);
The problem is that the checkForExceptions() method will be called, e.g. 3 times for each exception - and I just want to display an error message to the user once (of course).
Anyone done something similar?

I'm interested in catching all "unhandled errors"how about:
public static void main(String[] args){
    try{
    //whatever you would normally call from main
    }catch (Throwable e){
         System.out.println("There was an unhandled exception:");
         e.printStackTrace();
}

How to catch ALL Exception in ONE TIME

I'm explain my issue:
I'm making a program with Class, Swing, Thread ...
Then all action I do on my graphical application, I use a new thread, well
I want to capture in my Startup programs, all unknow exception and then, I display it with a JOptionPane for example
In fact, I want to do something like Eclipse, when it crash, I capture the error
Could you help me ? Tell me the best way to do that ?
This is an exemple
FILE: Startup.java
class Startup{
public static main (String args[]){
try{
new Main();
}catch(Throwable e){
//Message d'erreur fenetre
FILE: Main.java
class Main{
Main(){
init_action();
void init_action(){
mybutton.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
Thread th=new Thread(){
public void run(){
int a = 1 / 0;
th.start();
Well, in this example I want to capture the Divide By 0, I use the Throwable Exeption, in order to be sure I catch all unknow exeption
Then, a good job, is to put throws Throwable in all function
but Thread, and ActionPerformed ... could not implement it
How to put this exception and jump it to Startup Program ?

I already do that, what can I do for improving capture ?
That's impossible ... It will be a great idea to make a Redirection of Error to a Exception class in futur version
For example, when an unknow error arrive, don't show it on console and crash ... but run a class redirector exception, and magic, it show you a beautiful error warning, and stop properly the programme ...
I put an error class, and put try {] catch {} everywhere, and run my exception class,
this class detect the error exception and run a properly beautiful and clear french message (I'm french :d)
Well, If you have the BEST other idea, tell me, I read your message with a lot of regard
see you soon
bye

Trying to catch all exceptions...

Hi, developers!
I am trying to develop the best code, that can catch all the exceptions, in the best possible way, and whenever as possible it must register in a log with informations about the exception occurred.
I need your suggestions. See the code below:
MyClass()
throws IOException, MyException {
Throwable objThrowable1 = null;
try {
    doSomething();
} catch(MyException e) {
    objThrowable1 = e;
    throw e;
} catch(IOException e) {
    objThrowable1 = e;
    throw e;
} catch(RuntimeException e) {
    objThrowable1 = e;
    throw e;
} catch(Exception e) {
    objThrowable1 = e;
    throw new Exception("Some Exception occurred.", e);
} catch(Error e) {
    objThrowable1 = e;
    throw e;
} finally {
    if (objThrowable1 != null) {
      Throwable objThrowable2 = null;
      try {
        log.fatal(objThrowable1);
        objThrowable1.printStackTrace();
      } catch(RuntimeException e) {
        objThrowable2 = e;
        throw e;
      } catch(Exception e) {
        objThrowable2 = e;
        throw new Exception("Some Exception occurred while logging.", e);
      } catch(Error e) {
        objThrowable2 = e;
        throw e;
      } finally {
        if (objThrowable2 != null) {
          objThrowable2.printStackTrace();
}It is the constructor of MyClass, and it might throw IOException or MyException.
Now some questions:
1) Do you think I exaggerated and wrote a lot of code, more than sufficient?
2) I wrote all this code because I think it�s a good idea throwing exceptions, especially RuntimeException and Error. The Virtual Machine must know how to handle the situation when some exception occurs. But I want to register a log of the exception, too, whenever as possible. In my opinion, the only way to advise the Virtual Machine that some exception occurred is throwing this exception. Do you agree? Do I really need to worry about it?
Thanks in advance!

Hi, developers!
I am trying to develop the best code, that can catch
all the exceptions, in the best possible way,Define "best possible way". I don't think what you're proposing is even close, by any measure.
You should only catch exceptions that you intend to handle. If there's no way for your class to handle the exception, it should bubble it up to the class that will. Catching and rethrowing like that seems a total waste to me.
I need your suggestions. See the code below:I'd suggest that this is an ugly mess. I would not go this way.
I have no idea whatsoever about that finally block. That should be for cleanup. What are you doing there?
MyClass()
throws IOException, MyException {
Throwable objThrowable1 = null;
try {
doSomething();
} catch(MyException e) {
objThrowable1 = e;
throw e;
} catch(IOException e) {
objThrowable1 = e;
throw e;
} catch(RuntimeException e) {
objThrowable1 = e;
throw e;
} catch(Exception e) {
objThrowable1 = e;
throw new Exception("Some Exception occurred.",
d.", e);
} catch(Error e) {
objThrowable1 = e;
throw e;
} finally {
if (objThrowable1 != null) {
Throwable objThrowable2 = null;
try {
log.fatal(objThrowable1);
objThrowable1.printStackTrace();
} catch(RuntimeException e) {
objThrowable2 = e;
throw e;
} catch(Exception e) {
objThrowable2 = e;
throw new Exception("Some Exception occurred
occurred while logging.", e);
} catch(Error e) {
objThrowable2 = e;
throw e;
} finally {
if (objThrowable2 != null) {
objThrowable2.printStackTrace();
}It is the constructor of MyClass, and it might
throw IOException or MyException.
Now some questions:
1) Do you think I exaggerated and wrote a lot of
code, more than sufficient?
2) I wrote all this code because I think it�s a good
idea throwing exceptions, especially
RuntimeException and Error. The Virtual
Machine must know how to handle the situation when
some exception occurs. But I want to register a log
of the exception, too, whenever as possible. In my
opinion, the only way to advise the Virtual Machine
that some exception occurred is throwing this
exception. Do you agree? Do I really need to worry
about it?
Thanks in advance!Cath t

Catching all possible exceptions in gui thread

Hi,
I have such a problem: I am developing Swing app and sometimes it crashes by throwing an Exception which I don't catch. The effect is that this exception prints stack trace on System.err but user is not notified and wonders what is happening... I would prefer to show custom ErrorDialog with stacktrace.
I am searching for simple and effective way to catch every possible exception thrown from within any library. I think of a few ways from which everyone has some disadvantages.
The ideal way would be replacing AWT event queue dispatcher so I could process every GUI event inside try { } catch (Exception e) {} block. That would be a good place to catch all exceptions. Unfortunately I don't know if it is possible.
For now I am trying such a solution:
I start background thread together with main app. Then I redirect System.err and System.out streams to PipedStream connected to this background thread. This thread can analyze anything that is going to System.err and maybe recognize potential exception stacktraces. Then it can notify main thread of an exception. But it is not ideal as I have to parse the stream and it can always be not ideal in exception recognition. And the code is quite costly.
Do you have any ideas, had similar problems?

But how can I cause GUI thread to run in my thread
group? As I suppose GUI thread is started by JVM and
is something separate from my code - I can get a
reference to GUI thread but don't know how to
manipulate or replace it...One alternative is to completely separate the GUI code from your code.
Your code, which is wrapped in appropriate try/catch blocks, runs on its own thread and does its own processing. When it's done with that processing, it queues the results on the event thread for display. If an exception occurs during your processing, then you queue something that notifies the GUI.
The simplest way to implement this is to spawn a new thread for each operation. The Runnable that you give to that thread looks like the following:
public MyOperationClass implements Runnable
    public void run()
        try
            // do your exception-generating code here
            SwingUtilities.invokeLater( new MyGUIUpdateClass(param1, param2));
        catch (Exception e)
            SwingUtilities.invokeLater(new MyExceptionReporter(e));
}This is only a bare-bones solution (and hasn't been compiled). Since it separates the GUI from actual processing, you'll probably want to display a wait cursor while the processing thread is doing its thing. You'll probably end up implementing a class that implements this pattern. You may also want to create a producer-consumer thread, so that the user won't invoke, say, a dozen different operations at once.
However, this sort of code is absolutely essential to Swing programming. Most apps do extensive non-GUI processing, such as database queries. If you run such queries in the GUI thread, your GUI will freeze.
Sun has named this pattern "SwingWorker", although I don't think they've fleshed it out very fully: http://java.sun.com/products/jfc/tsc/articles/threads/threads2.html

Catching all the exceptions at once

Can we catch all exception and throw it all at once?
Here's what i want to do..
Say i have a class in which i have around 4 sql statements
which i'm putting it in a try. I do not want to throw execptions one by one.
instead
try{
some statements
catch{
goto Error -->
catch{
goto Error -->
Error:
Show all the statements here..
I do not want to do this manually..is there already an exists9ing class or something that we need to implement. Please reply
Tahnks,
Anjana

Just catch Exception. its the motherclass of all exceptions.
put everything in one big try/catch.

How to throw or catch sql exception for executeReader sql adapter

Wcf sql adapter was created and executeReader was used.
When an invalid sql statement was constructed and send it to wcf sql adapter, it will hanging there, and no response. No exception was catched even though send chape  was inside a catch block. How can I catch this kind of exception
or throw this exception ? I need to give client an exception resposne.
thanks
Gary

I used scope with exception handle which has Exception object type: "System.SystemException".
I guess this type "System.SystemException" can catch any exception, including sql exception. Maybe I am wrong. I got error from window event:
A message sent to adapter "WCF-Custom" on send port "WcfSendPort_SqlAdapterBinding_DalCore_Custom" with URI "mssql://shig-quad-2k3e1//DataSourceOne?" is suspended.
Error details: System.Data.SqlClient.SqlException: Incorrect syntax near '='.
Server stack trace:
   at System.ServiceModel.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.End(SendAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.EndRequest(IAsyncResult result)
Exception rethrown at [0]:
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
   at System.ServiceModel.Channels.IRequestChannel.EndRequest(IAsyncResult result)
   at Microsoft.BizTalk.Adapter.Wcf.Runtime.WcfClient`2.RequestCallback(IAsyncResult result)
MessageId: {B24EF5B8-298A-4D4F-AA98-5E639361A7DB}
InstanceID: {F8924129-265B-4652-B20E-8D25F8F20A51}
If "System.SystemException" can't catch all exception, which type can catch all exception ? I want to catch all exception in this catch block.
thanks
Gary

Catching Runtime Exception

Is it good practice to catch High level Exception in the try block, this would also catch RuntimeException. My personal opinion is not to catch the Runtime Exception and let the JVM handle it. However if there is a need to catch specific Runtime Exception, code should be written for that.
try
// Your code
catch (Exception e)
e.printStackTrace()
}

I agree that runtime exceptions should generally not
be caught as they are mistakes of programmers.
But in order to debug a large project with hundreds of
classes it can be useful to do that anyways.
Any my big question is: how?
I tried to wrap the content of the main method in a
try / catch block hoping that I could catch all
exceptions not handled somewhere else.
But it didn't work.
I manually threw some exceptions somewhere in my GUI
and the main method wrapper didn't get them.
But the VM did and printed the exception message.
But I didn't want the VM to catch my exceptions. I
wanted to catch them myself at the lowest possible
point in my own classes.
And I thought that was the main method.
Can anyone help me?
Thank you
Matthias Klein
P.S. please excuse my improvable english; it's not my
mother tongue.AWT uses many different threads in your program that you never find out about unless something breaks. main(String arg[]) starts as the lowest possible point but, if you construct a Frame, Image, or certain other objects from the AWT package, AWT Threads automatically start over which you have little or no control.
Overall, I don't think it's actually possible to catch the Runtime Exceptions out of these Threads. The best this you can do about them is prevent them from happening.

Catcherror event "catch all system exceptions" is not catching subLanguageExecutionFault

catcherror event "catch all system exceptions" is not catching subLanguageExecutionFault in BPM process

hi rani,
thanks for the response
i supply all the connection details(gatewayhost, gatewayservice, programid, clinet, systemnumber, applicationhost, userid, password etc.) to the program which extends "JCoIDoc.Server".
the program is taking care of all the connection establishment details.but still m facing the same problem.
i have also confirmed that the user is a communication user, not a dialogue user.
thanks
pavan

Why do I need to catch this exception?

Hello all
This is a question about exception handling. I have to build a diary application that lets you save reminders on particular dates using xml. Just to make it a little tougher, I was not allowed to use the Calendar class. This is the code I wrote:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.text.*;
import javax.xml.parsers.*;
import org.xml.sax.*;
import java.io.*;
import org.w3c.dom.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;
import static java.lang.Math.*;
public class CalendarAssignment extends JFrame implements ActionListener
     int MonthLength [] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
     public JButton [] days = new JButton[43];
     private JLabel lbl, reminderlbl;
     private JPanel top, grid, remindercenter, reminderbottom;
     private JFrame reminderframe;
     private JTextField year1, reminderinput, dayno;
     private JComboBox months;
     private Container container;
     private JButton fetch, save, cancel;
     private Document doc;
     private File file;
     private Node node;
     private String year, month, day;
          public static void main( String[] args ) {
               CalendarAssignment c = new CalendarAssignment( );
               c.setSize( 400, 300 );
               c.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
               c.show( );
          public CalendarAssignment( ) {
               int CurrentYear, CurrentMonth;
               String YearString, MonthString, Now;
               Date today;
               container = getContentPane( );
               container.setLayout( new BorderLayout( ) );
               SimpleDateFormat DateFormatter;
               DateFormatter = new SimpleDateFormat( "MM.yyyy" );
               today = new Date( );
               Now = DateFormatter.format( today );
               MonthString = Now.substring( 0,2 );
               YearString = Now.substring( 3,7 );
               CurrentMonth = Integer.valueOf( MonthString );
               CurrentYear = Integer.valueOf( YearString );
               top = new JPanel( );
                    String [] items = { "January", "February", "March", "April", "May", "June",
                                  "July", "August", "September", "October", "November",
                                  "December" };
                    months = new JComboBox( items );
                    months.setEditable( false );
                    months.setSelectedIndex( CurrentMonth - 1 );
                    year1 = new JTextField( );
                    year1.setText( YearString );
                    year1.setEditable( true );
                    year1.setHorizontalAlignment( year1.CENTER );
                    fetch = new JButton( "Fetch Month" );
                    fetch.addActionListener( this );
                    top.setLayout( new GridLayout( 1, 3, 20, 0 ) );
                    top.add( months );
                    top.add( year1 );
                    top.add( fetch );
               grid = new JPanel( );
                    grid.setLayout( new GridLayout( 7, 7, 0, 0 ) );
                    String [] week = { "Mon", "Tue", "Wed", "Thur", "Fri", "Sat", "Sun" };
                    for ( int a = 0; a < 7; a ++ ) {
                              JLabel lbl = new JLabel( week[a], JLabel.CENTER );
                              grid.add( lbl );
                    for ( int i = 0; i < 42; i ++ ) {
                              days[i] = new JButton( );
                              grid.add( days[i] );
                              days.addActionListener( this );
                    DrawCalendar( CurrentMonth, CurrentYear );
                    container.add( top, BorderLayout.NORTH );
                    container.add( grid, BorderLayout.CENTER );
          private void DrawCalendar( int SelectMonth, int SelectYear ) {
                    int DisplayMonthLength, Buttons;
                    String ButtonID = "";
                    int OffSet = MonthStart( SelectMonth, SelectYear );
                    DisplayMonthLength = MonthLength [SelectMonth - 1];
                    if ( SelectMonth == 2 )
                         DisplayMonthLength += LeapYear( SelectYear );
                    for ( Buttons = 1; Buttons < 43; Buttons ++ ) {
                         if ( ( Buttons <= OffSet ) || ( Buttons > ( DisplayMonthLength + OffSet ) ) ) {
                              ButtonID = "";
                              days[Buttons-1].setEnabled( false );
                         else {
                              ButtonID = Integer.toString( Buttons - OffSet );
                              days[Buttons-1].setEnabled( true );
                    days[Buttons-1].setLabel( ButtonID );
                    grid.add( days[Buttons-1] );
          private int LeapYear( int year ) {
                    int FourHundred, OneHundred, Fourth;
                    FourHundred = year % 400;
                    OneHundred = year % 100;
                    Fourth = year % 4;
                    if( ( ( FourHundred == 0 ) ) || ( ( OneHundred != 0 ) && ( Fourth == 0 ) ) )
                         return ( 1 );
                    else
                         return ( 0 );
          private int MonthStart( int Month, int Year ) {
                    int OffSet, LastMonths, BeforeOrAfter, Years;
                    int AllDays = 0;
                    int YearDays = 365;
                    int YearMonths = 12;
                    BeforeOrAfter = Year - 2006;
                    Years = abs( BeforeOrAfter );
                    if( BeforeOrAfter != 0 )
                         BeforeOrAfter = BeforeOrAfter / Years;
                    switch( BeforeOrAfter ) {
                         case 1:
                              for( int a = 2006; a < Year; a ++ ) {
                                   AllDays += YearDays + LeapYear( a );
                              AllDays += LastMonthsCalc( Month, Year );
                         break;
                         case -1:
                              for( int a = 2005; a > Year; a -- ) {
                                   AllDays += YearDays + LeapYear( a );
                              for( LastMonths = YearMonths; LastMonths >= Month; LastMonths -- ) {
                                   AllDays += MonthLength[LastMonths - 1];
                                   if( LastMonths == 2 )
                                        AllDays += LeapYear( Year );
                         break;
                         default:
                              if( Month > 1 )
                                   AllDays += ( LastMonthsCalc( Month, Year ) );
                    OffSet = AllDays % 7;
                    if( BeforeOrAfter ==( -1 ) )
                         return( 6 - OffSet );
                    else if( OffSet > 0 )
                         return( OffSet - 1 );
                    else
                         return( 6 );
          private int LastMonthsCalc( int Month, int Year ) {
                    int Counter;
                    int days = 0;
                    for( Counter = 1; Counter < Month; Counter ++ ) {
                         days += MonthLength[Counter - 1];
                         if( Counter == 2 )
                              days += LeapYear( Year );
                    return( days );
          public void CreateReminder( String buttonID, String yearID, String monthID ) {
                    reminderframe = new JFrame( );
                    reminderlbl = new JLabel( );
                    reminderframe.setLayout( new GridLayout( 2, 1, 0, 0 ) );
                    remindercenter = new JPanel( );
                         reminderlbl = new JLabel( "Please type in reminder to be saved for " + buttonID + " " + monthID + " " + yearID + ":", JLabel.CENTER );
                         reminderinput = new JTextField( 30 );
                         reminderinput.setHorizontalAlignment( reminderinput.CENTER );
                         reminderinput.setEditable( true );
                         remindercenter.setLayout( new GridLayout( 2, 1, 0, 0 ) );
                         remindercenter.add( reminderlbl );
                         remindercenter.add( reminderinput );
                    reminderbottom = new JPanel( );
                         save = new JButton( "Save" );
                         save.addActionListener( this );
                         cancel = new JButton( "Cancel" );
                         cancel.addActionListener( this );
                         dayno = new JTextField( buttonID );
                         dayno.setEditable( false );
                         dayno.setEnabled( false );
                         dayno.show( false );
                         reminderbottom.setLayout( new FlowLayout( ) );
                         reminderbottom.add( save );
                         reminderbottom.add( cancel );
                         reminderbottom.add( dayno );
                    reminderframe.setSize( 500, 75 );
                    reminderframe.add( remindercenter );
                    reminderframe.add( reminderbottom );
                    reminderframe.pack( );
                    reminderframe.show( );
          public void SaveReminder( String dayID, String yearID, String monthID ) throws Exception {
                    file = new File( "Diary.xml" );
                    doc = DocumentBuilderFactory.newInstance( ).newDocumentBuilder( ).parse( file.toURL( ).toString( ) );
                    String year = yearID;
                    String month = monthID;
                    String day = dayID;
                    //System.out.println( year );
                    //System.out.println( month );
                    //System.out.println( day );
                    CreateEntry( doc.getDocumentElement( ) );
                    writeXmlFile( );
          public boolean CreateEntry( Node node ) {
                    Node searchNode;
                    searchNode = getYear( node );
                    if( searchNode == null ) {
                         Element newNode = doc.createElement( "Year" );
                         searchNode = node.appendChild( newNode );
                         newNode.setAttribute( "Id", year );
                    node = searchNode;
                    searchNode = getMonth( node );
                    if( searchNode == null ) {
                         Element newNode = doc.createElement( "Month" );
                         searchNode = node.appendChild( newNode );
                         newNode.setAttribute( "Id", month );
                    node = searchNode;
                    searchNode = getDay( node );
                    if( searchNode == null ) {
                         Element newNode = doc.createElement( "Day" );
                         searchNode = node.appendChild( newNode );
                         newNode.setAttribute( "Id", day );
                    node = searchNode;
                    String entry = reminderinput.getText( );
                    Node textNode = doc.createTextNode( entry );
                    node.appendChild( textNode );
                    return true;
          private Node getYear( Node node ) {
                    node = node.getFirstChild( );
                    while( node != null ) {
                         if(node.getNodeName( ).equals( "Year" ) && String.valueOf( node.getAttributes( ).item( 0 ).getNodeValue( ) ) == year )
                              return node;
                              node = node.getNextSibling( );
                    return null;
          private Node getMonth( Node node ) {
                    node = node.getFirstChild( );
                    while( node != null ) {
                         if( node.getNodeName( ).equals( "Month" ) && String.valueOf( node.getAttributes( ).item( 0 ).getNodeValue( ) ) == month )
                              return node;
                              node = node.getNextSibling( );
                    return null;
          private Node getDay( Node node ) {
                    node = node.getFirstChild( );
                    while( node != null ) {
                         if( node.getNodeName( ).equals( "Day" ) && String.valueOf( node.getAttributes( ).item( 0 ).getNodeValue( ) ) == day )
                              return node;
                              node = node.getNextSibling( );
                    return null;
          private void writeXmlFile( ) throws Exception {
               Source source = new DOMSource( doc );
                    Result result = new StreamResult( file );
               Transformer xformer = TransformerFactory.newInstance( ).newTransformer( );
               xformer.setOutputProperty( OutputKeys.INDENT,"yes" );
               xformer.setOutputProperty( OutputKeys.DOCTYPE_SYSTEM,"Diary.dtd" );
               xformer.transform( source, result );
          public void actionPerformed( ActionEvent e ) {
                    String IDButton = e.getActionCommand( );
                    String IDYear = year1.getText( );
                    Object IDMonthObj = months.getSelectedItem( );
                    if( e.getSource( ) == fetch ) {
                         String YearText = year1.getText( );
                         int YearNumber = Integer.valueOf( YearText );
                         int MonthsIndex = months.getSelectedIndex( ) + 1;
                         DrawCalendar( MonthsIndex, YearNumber );
                    else if( e.getSource( ) == cancel ) {
                         reminderframe.hide( );
                    else if( e.getSource( ) == save ) {
                         String IDDay = dayno.getText( );
                         String IDMonth = String.valueOf( IDMonthObj );
                         SaveReminder( IDDay, IDYear, IDMonth );
                    else {
                         String IDMonth = String.valueOf( IDMonthObj );
                         Toolkit.getDefaultToolkit( ).beep( );
                         int n = JOptionPane.showConfirmDialog( null, "Set reminder on this date?", "Question", JOptionPane.YES_NO_OPTION );
                         if( n == JOptionPane.YES_OPTION ) {
                              CreateReminder( IDButton, IDYear, IDMonth );
If you compile it, you will realise that I get an error about exception handling. My lecturer gave me an example code of how to do the same thing without using a GUI:
import javax.xml.parsers.*;
import org.xml.sax.*;
import java.io.*;
import java.util.*;
import org.w3c.dom.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;
public class CallDOM
     Document doc;
     File file;
     Scanner input;
     int year, month, day;
     String currentYear, currentMonth;
     public static void main(String args[]) throws Exception
          CallDOM cd=new CallDOM();
     CallDOM() throws Exception
          file=new File("Diary.xml");
          //create DOM from file
          doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(file.toURL().toString());
          input=new Scanner(System.in);
          System.out.println("1) Create entry");
          System.out.println("2) Read entry");
          System.out.println("3) Show Diary");
          System.out.println("4) Quit");
          int choice=input.nextInt();
          while(choice!=4)
               switch(choice)
                    case 1: GetDate();CreateEntry(doc.getDocumentElement());break;
                    case 2: GetDate();ReadEntry(doc.getDocumentElement());break;
                    case 3: ShowDiary(doc.getDocumentElement());
               System.out.println("1) Create entry");
               System.out.println("2) Read entry");
               System.out.println("3) Show Diary");
               System.out.println("4) Quit");
               choice=input.nextInt();
          writeXmlFile();
     public void GetDate()
          System.out.println("Enter date (dd mm yyyy)");
          day=input.nextInt();
          month=input.nextInt();
          year=input.nextInt();
     public boolean ReadEntry(Node node)
          node = getYear(node);
          if(node==null) return false;
          node = getMonth(node);
          if(node==null) return false;
          node = getDay(node);
          if(node==null) return false;
          node = node.getFirstChild();
          while(node!=null)
               System.out.println(node.getNodeValue().trim());
               node=node.getNextSibling();
          return true;
     public boolean CreateEntry(Node node)
          Node searchNode;
          searchNode = getYear(node);
          if(searchNode==null)
               Element newNode = doc.createElement("Year");
               searchNode = node.appendChild(newNode);
               newNode.setAttribute("Id",Integer.toString(year));
          node = searchNode;
          searchNode = getMonth(node);
          if(searchNode==null)
               Element newNode = doc.createElement("Month");
               searchNode = node.appendChild(newNode);
               newNode.setAttribute("Id",Integer.toString(month));
          node = searchNode;
          searchNode = getDay(node);
          if(searchNode==null)
               Element newNode = doc.createElement("Day");
               searchNode = node.appendChild(newNode);
               newNode.setAttribute("Id",Integer.toString(day));
          node = searchNode;
          System.out.println("Enter Text");
          String entry=input.next();
          entry+=input.nextLine();
          Node textNode = doc.createTextNode(entry);
          node.appendChild(textNode);
          return true;
     public void ShowDiary(Node node)
          Stack<Node> stack=new Stack<Node>();
          Node child;
          stack.push(node);
          while(!stack.empty())
               node = stack.pop();
               if(ProcessNode(node))
                    child = node.getLastChild();
                    while(child!=null)
                         stack.push(child);
                         child = child.getPreviousSibling();
     private boolean ProcessNode(Node node)
          if(node.getNodeName().equals("Year"))
               currentYear=node.getAttributes().item(0).getNodeValue();
          if(node.getNodeName().equals("Month"))
               currentMonth=node.getAttributes().item(0).getNodeValue();
          if(node.getNodeName().equals("Day"))
               System.out.print(node.getAttributes().item(0).getNodeValue()+"/"+
                                        currentMonth+"/"+currentYear+": ");
               node=node.getFirstChild();
               while(node!=null)
                    System.out.println(node.getNodeValue().trim());
                    node=node.getNextSibling();
               return false;
          return true;
     private Node getYear(Node node)
          node=node.getFirstChild();
          while(node!=null)
               if(node.getNodeName().equals("Year")
                    && Integer.valueOf(node.getAttributes().item(0).getNodeValue())==year)
                         return node;
               node = node.getNextSibling();
          return null;
     private Node getMonth(Node node)
          node=node.getFirstChild();
          while(node!=null)
               if(node.getNodeName().equals("Month")
                    && Integer.valueOf(node.getAttributes().item(0).getNodeValue())==month)
                    return node;
               node = node.getNextSibling();
          return null;
     private Node getDay(Node node)
          node=node.getFirstChild();
          while(node!=null)
               if(node.getNodeName().equals("Day")
                    && Integer.valueOf(node.getAttributes().item(0).getNodeValue())==day)
                    return node;
               node = node.getNextSibling();
          return null;
     private void writeXmlFile() throws Exception
        Source source = new DOMSource(doc);
        Result result = new StreamResult(file);
        Transformer xformer = TransformerFactory.newInstance().newTransformer();
        xformer.setOutputProperty(OutputKeys.INDENT,"yes");
        xformer.setOutputProperty(OutputKeys.DOCTYPE_SYSTEM,"Diary.dtd");
        xformer.transform(source, result);
}My question is, why does the exceptions in the example code not need to be caught? And why do I have to catch the exceptions in my code? Several exceptions are thrown in the example code, but there is no catch statement.
Thanks for any advice!!

Since your question didn't come with any relevant details, and since you have huge steaming piles of irrelevant code, all I can give is a general answer to "Why do I need to catch this exception?"
[url http://java.sun.com/docs/books/tutorial/essential/exceptions/index.html]Exception tutorial at http://java.sun.com/docs/books/tutorial/essential/exceptions/index.html
Here's a quick overview of exceptions:
The base class for all exceptions is Throwable. Java provides Exception and Error that extend Throwable. RuntimeException (and many others) extend Exception.
RuntimeException and its descendants, and Error and its descendants, are called unchecked exceptions. Everything else is a checked exception.
If your method, or any method it calls, can throw a checked exception, then your method must either catch that exception, or declare that your method throws that exception. This way, when I call your method, I know at compile time what can possibly go wrong and I can decide whether to handle it or just bubble it up to my caller. Catching a given exception also catches all that exception's descendants. Declaring that you throw a given exception means that you might throw that exception or any of its descendants.
Unchecked exceptions (RuntimeException, Error, and their descendants) are not subject to those restrictions. Any method can throw any unchecked exception at any time without declaring it. This is because unchecked exceptions are either the sign of a coding error (RuntimeException), which is totally preventable and should be fixed rather than handled by the code that encounters it, or a problem in the VM, which in general can not be predicted or handled.

Catching unhandled exceptions

Is there any way to catch all unhandled exceptions from the AWT event dispatch thread? Actually I want to display an error message in a dialog box for unhandled exceptions instead of printing to stderr.
Although, for user threads this sort of thing can be easily done by extending ThreadGroup and overriding its uncaughtException() method, but this technique seemingly cannot be used with system threads.
Any ideas will be highly appreciated.
Thank you

I checked the article referenced above and found the message listed below. This seems to be the solution that I am looking for. But I am in doubt whether it will work with non-Sun VMs, since the method relies on setting a Sun AWT specific system property. Can anyone confirm this?
Re: Catching OutOfMemoryError in multithreaded GUI
Author: wathed Jul 4, 2001 11:35 PM
Can't find any documentation to back this up, but from the source it appears you can specify an exception handler to be called for Throwables on the AWT event thread:
1) YourHandler should have a method:
public void handle(Throwable t) { ...}
2) use the following when invoking:
java -Dsun.awt.exception.handler=package.YourHandler MainClass

BPEL catch all block doesn't catch fault

Hi,
I have a catch all block in my BPEL process. One instance tried to write to the Oracle database without success throwing a fault which wasn't taken by BPEL's catch all. I see an error on invoke but it does not go to catch all block.
Exception occured when binding was invoked. Exception occured during invocation of JCA binding: "JCA Binding execute of Reference operation 'merge' failed due to: DBWriteInteractionSpec Execute Failed Exception. merge failed. Descriptor name: [writeCountry.Country]. Caused by java.sql.SQLRecoverableException: No more data to read from socket. Please see the logs for the full DBAdapter logging output prior to this exception. This exception is considered retriable, likely due to a communication failure. Because the global transaction is rolling back the invoke must be retried in a new transaction, restarting from the place of the last transaction commit. To classify it as non-retriable instead add property nonRetriableErrorCodes with value "17410" to your deployment descriptor (i.e. weblogic-ra.xml). ". The invoked JCA adapter raised a resource exception. Please examine the above error message carefully to determine a resolution.
Global retry rollback fault thrown.
The current JTA transaction is aborting due to an user rollback fault being thrown. The upstream component should retry in a new JTA transaction upon catching this fault.
This exception was caused by a global retry fault being thrown from downstream component. The user had directed the BPEL engine to roll back the current JTA transaction and retry within new JTA transactions for the specified number of times and retry interval.
There is no action recommended.
Ah, I have one more question, I have a BPEL process wich write to the database to the table X. Some time ago i extended the table X and add one more column. Why does BPEL lost all data in dbadapter and does not sygnalize any error when invoked adapter? Usually when I drop or alter table i get an error message. This time I see that the transformation which was before invoke to dbadapter was done correctly but I can see no data in invoke which should be written
All environment is on 11.1.1.6, BPEL 2.0
Edited by: 863909 on 2012-08-29 01:05

Aye. My catch all block is defined for a parent scope. Just some arrors are not catch by catch all block (the same as for OutOfMemoryError for java - which will never be catched). I just wonder, because my red invoke activity in the EM sygnalizes error and throw error message but catch all block does not get it. Process stoped on error invoke and not go into catch all.
Change table aspect. I don't have a problem, because i deleted old and implemented new adapter. It works. I just wonder why when I deleted an atribute (column) from DB I got en error and process stops, but when I extended a table, my process were runing to the end and was marked as finished completely. Something is wrong here, because adapter didnt write all data it should write. Process were going and was finished without throwing an error.
Edited by: 863909 on 2012-08-29 04:14

Catch all error information while validating xml content with xsd schema

Hi experts,
I created a java mapping to validating the input xml content with xsd schema (schema validation). What I want is to catch all error message to the xml not just the first error. I used SAXParser in sapxmltoolkit.jar to do the schema validation. The below is a part of my java mapping.
XMLReader parser = XMLReaderFactory.createXMLReader("com.sap.engine.lib.xml.parser.SAXParser");
parser.setFeature( "http://xml.org/sax/features/validation" , true);
parser.setFeature( "http://apache.org/xml/features/validation/schema" , true);
parser.setProperty("http://java.sun.com/xml/jaxp/properties/schemaLanguage", "http://www.w3.org/2001/XMLSchema");          parser.setProperty("http://java.sun.com/xml/jaxp/properties/schemaSource",this.getClass().getClassLoader().getResourceAsStream(schema)); // schema is my schema name
parser.setErrorHandler(new ParseErrorHandler()); // ParseErrorHandler is my own ErrorHandler which extends DefaultHandler
parser.parse(new InputSource(new ByteArrayInputStream(sinput.getBytes())));
// In error handler, I comment all code so as not to throw any exception
public class ParseErrorHandler extends DefaultHandler
     public void error(SAXParseException e) throws SAXException
          // sSystem.out.println("Error" + e.getMessage());
          // throw e;
     public void fatalError(SAXParseException e)
          // throw e;
          // System.out.println("SAP Fatal Error" + e.getMessage());
Unfortunately the program always stopped while catching the first error. Check the below log.
com.sap.engine.lib.xml.parser.NestedSAXParserException: Fatal Error: com.sap.engine.lib.xml.parser.ParserException:
ERRORS :
cvc-simple-type : information item '/:ShipNotice[1]/:Header[1]/:To[1]/:PartnerInformation[1]/:AddressInformation[1]/:CityName[1]' is not valid, because it's value does not satisfy the constraints of facet 'minLength' with value '1'.
cvc-data : information item '/:ShipNotice[1]/:Header[1]/:To[1]/:PartnerInformation[1]/:AddressInformation[1]/:CityName[1]' is is not valid with respoct to the corresponding simple type definition.
cvc-element : element information item '/:ShipNotice[1]/:Header[1]/:To[1]/:PartnerInformation[1]/:AddressInformation[1]/:CityName[1]' is associated with invalid data.
cvc-element : element information item '/:ShipNotice[1]/:Header[1]/:To[1]/:PartnerInformation[1]/:AddressInformation[1]' is not valid with respect to it's complex type definition..
cvc-element : element information item '/:ShipNotice[1]/:Header[1]/:To[1]/:PartnerInformation[1]' is not valid with respect to it's complex type definition..
cvc-element : element information item '/:ShipNotice[1]/:Header[1]/:To[1]' is not valid with respect to it's complex type definition..
cvc-element : element information item '/:ShipNotice[1]/:Header[1]' is not valid with respect to it's complex type definition..
cvc-element : element information item '/:ShipNotice[1]' is not valid with respect to it's complex type definition..
-> com.sap.engine.lib.xml.parser.ParserException:
I tried using Xerces and JAXP to do validation, the same error happened. I have no idea on this. Does xi has its own error handler logic? Is there any body can make me get out of this?
Thanks.

<h6>Hi experts,
<h6>
<h6>I created a java mapping to validating the input xml content with xsd schema (schema validation). What I want is to catch all <h6>error message to the xml not just the first error. I used SAXParser in sapxmltoolkit.jar to do the schema validation. The below <h6>is a part of my java mapping.
<h6>XMLReader parser = XMLReaderFactory.createXMLReader("com.sap.engine.lib.xml.parser.SAXParser");
<h6>parser.setFeature( "http://xml.org/sax/features/validation" , true);
<h6>parser.setFeature( "http://apache.org/xml/features/validation/schema" , true);
<h6>parser.setProperty("http://java.sun.com/xml/jaxp/properties/schemaLanguage", "http://www.w3.org/2001/XMLSchema");          <h6>parser.setProperty("http://java.sun.com/xml/jaxp/properties/schemaSource",this.getClass().getClassLoader().getResourceAsStream(schema)); <h6>// schema is my schema name
<h6>parser.setErrorHandler(new ParseErrorHandler()); // ParseErrorHandler is my own ErrorHandler which extends Default Handler
<h6>parser.parse(new InputSource(new ByteArrayInputStream(sinput.getBytes())));
<h6>
<h6>// In error handler, I comment all code so as not to throw any exception
<h6>public class ParseErrorHandler extends DefaultHandler
<h6>{
<h6>     public void error(SAXParseException e) throws SAXException
<h6>     {
<h6>          // sSystem.out.println("Error" + e.getMessage());
<h6>          // throw e;
<h6>     }
<h6>
<h6>     public void fatalError(SAXParseException e)
<h6>     {
<h6>          // throw e;
<h6>          // System.out.println("SAP Fatal Error" + e.getMessage());
<h6>
<h6>     }
<h6>
<h6>}
<h6>
<h6>Unfortunately the program always stopped while catching the first error. Check the below log.
<h6>
<h6>com.sap.engine.lib.xml.parser.NestedSAXParserException: Fatal Error: com.sap.engine.lib.xml.parser.ParserException:
<h6>ERRORS :
<h6>cvc-simple-type : information item <h6>'/:ShipNotice[1]/:Header[1]/:To[1]/:PartnerInformation[1]/:AddressInformation[1]/:CityName[1]' <h6>is not valid, because it's value does not satisfy the constraints of facet 'minLength' with value '1'.
<h6>cvc-data : information item <h6>'/:ShipNotice[1]/:Header[1]/:To[1]/:PartnerInformation[1]/:AddressInformation[1]/:CityName[1]' <h6>is is not valid with respoct to the corresponding simple type definition.
<h6>cvc-element : element information item <h6>'/:ShipNotice[1]/:Header[1]/:To[1]/:PartnerInformation[1]/:AddressInformation[1]/:CityName[1]' <h6>is associated with invalid data.
<h6>cvc-element : element information item <h6>'/:ShipNotice[1]/:Header[1]/:To[1]/:PartnerInformation[1]/:AddressInformation[1]' <h6>is not valid with respect to it's complex type definition..
<h6>cvc-element : element information item <h6>'/:ShipNotice[1]/:Header[1]/:To[1]/:PartnerInformation[1]' <h6>is not valid with respect to it's complex type definition..
<h6>cvc-element : element information item <h6>'/:ShipNotice[1]/:Header[1]/:To[1]' <h6>is not valid with respect to it's complex type definition..
<h6>cvc-element : element information item <h6>'/:ShipNotice[1]/:Header[1]' <h6>is not valid with respect to it's complex type definition..
<h6>cvc-element : element information item '/:ShipNotice[1]' is not valid with <h6>respect to it's complex type definition..
<h6> -> com.sap.engine.lib.xml.parser.ParserException:
<h6>
<h6>
<h6>I tried using Xerces and JAXP to do validation, the same error happened. I have no idea on this. Does xi has its own error <h6>handler logic? Is there any body can make me get out of this?
<h6>Thanks.

Catch All Exception

Similar Messages

Maybe you are looking for