The JDK docs say, that if a thread is interrupted that currently blocks in an io operation of an InterruptibleChannel, the channel is closed and a ClosedByInterruptException is thrown. However, i get a different behaviour when using a FileChannel: public class Main implements Runnable { public static void main(String[] args) throws Exc...
When writing a Perl module, is it a good practice to use croak/die inside the module? After all, if the caller doesn't use an eval block, the module might crash the program calling it. What is the best practice in these cases? ...
I have something similar to this. void func() { try { //socket disconnects in middle of ..parsing packet.. } catch(Exception ex) { if(!ex.getMessage().toString().equals("timeout") || !ex.getMessage().toString().equals("Connection reset")) { debug("Exception (run): " + ex.getMessage()); ex.printStackTrace(); } } ...
Hi all, i have an entity that contains two other entities with @ManyToOne relationship. @Entity public class A extends Serializable{ @Id @GeneratedValue(strategy=GenerationType.IDENTITY) private Long id; @ManyToOne @Cascade(CascadeType.SAVE_UPDATE) private B b; @ManyToOne @Cascade(CascadeType.SAVE_UPDA...
Hello, This may have been asked previously, but I search the stack and couldn't find any which really hit upon this. I just finished work on a C++-program where I've implemented my own exceptions (although derived from std::exception). The practice I've applied when one exception causes a chain reaction, propagating the error upwards a...
I am trying to come up with a manageable way to handle exceptions in a DAO. Typically a method in my DAO looks like this: public ArrayList fetchColors (String id) { //call iBatis SqlMapClient //put results in a list //return list } If an error happens in the above code then everything is written to server.log and on the f...
Following fails to catch a exception int *i; //intentionally uninitialized try { *i = 6; } catch (const runtime_error e) { cout << "caught!" << endl; } is it actually catching a runtime error or an exception? ...
ParsedNotificationDataSet result = new ParsedNotificationDataSet(); Cursor c = db.rawQuery("select * from notificationtable", null); if (c.getCount() > 0) { c.moveToFirst(); do { result.setclassurl(c.getString(c.getColumnIndex("Id"))); result.settype(c.getString(c....
I know this question is pretty similar to others that have been posted before but I would like to discuss this topic in a proper way. Do you think that the "obvious" exception should be unit tested? With obvious exception I mean for example exceptions due to null arguments or empty strings or negative numbers in situations where we the...
I'm trying to create a top level exception capture for a debug version of some real-time data capture software and was wondering if there was a top-level exception handler similar to Application.ThreadException that captures ALL exceptions, not just unhandled/trapped ones. Thanks in advance ...
We all agree that using different exception types for different tasks is the way to go. But then, we end up with creating ghost files like this: /** * Zend Framework * * LICENSE * * This source file is subject to the new BSD license that is bundled * with this package in the file LICENSE.txt. * It is also available through the w...
Are there any guidelines on exception propagation in Java? When do you add an exception to the method signature? For example: if an exception is only thrown when an essential program resource is missing, and can only be handled at the top level, do I propagate it through all methods using this exception through all the methods using the...
Can I detect at runtime inside method Helper() that the program execution is the result of a thrown exception? Note, my goal is to avoid extending method Helper() to take an exception object as a input pararmeter. public void MyFunc1() { try { // some code here that eventaully throws an exception } catch( Exception ex ) ...
I have a web application which uses JSON.Net to write out an array of data from a .Net Array(). When run in the VS2010 environment, it works fine. When run under IIS6 and .Net 3.5, it works fine. When run under IIS7 or 7.5 and .Net 3.5 when .Net 4.0 is installed (but the app pool and site is set to use v2 runtime), it fails with the e...
I got this exception while calling a named HQL query in an EJB. I'm quite puzzled though because the app. functions fine with named queries and all. Only when it throws some exception, it can't find the JDBCExceptionHelper. javax.ejb.EJBTransactionRolledbackException: Unexpected Error java.lang.NoClassDefFoundError: org/hibernate/exce...
I'm trying to starting up with a Spring 2 + Struts 2 + Hibernate 3 arquitecture project, but I get an exception when deploy it in Apache Tomcat 6.0 within Eclipse (Helios version). Tomcat's exception on start: GRAVE: Error configurando escuchador de aplicación de clase org.springframework.web.context.ContextLoaderListener java.lang.Cla...
I have a Broadcast receiver setup so that a pop-up message is displayed to the user after each upgrade of my app, or if this is the first time the package is installed. I tested this on my Droid running Android 2.2 both as a fresh install and after upgrading my app, as well in the Emulator running 1.5 and 1.6, and I see everything run fi...
Hi All, I have a wcf service hosted in iis. The endpoint uses wsHttpBinding. I have a lot of clients that are using the service. The internet connection is unstable. The clients uses the service to insert data in db. What is the best practice of exception handling in the client. Is it good choise to use the using statemen and initi...
Is it possible to catch ALL exceptions at some top-level in Actionscript 3? If so, how? ...
If I have a code like the following: try { doSomething(); } catch (...) { noteError(); } void noteError() { try { throw; } catch (std::exception &err) { std::cerr << "Note known error here: " << err.what(); } catch (...) { std::cerr << "Note unknown error here."; } throw; } Will the original exceptions get t...