Why does a sleep thread need a try catch to catch Interrupted Exception? Why does a sleep even emit an Interrupted Exception error? This are the two questions I really wanna find out about in java programming I’ve been searching through google and i’ve still haven’t found a clear explanation…
Tag: exception
Exception in thread “main” java.awt.AWTError: Assistive Technology not found
How to solve this error? Exception in thread “main” java.awt.AWTError: Assistive Technology not found: com.sun.java.accessibility.AccessBridge at java.awt.Toolkit.loadAssistiveTechnologies(Toolkit.java:775) at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:861) at java.awt.Window.getToolkit(Windo…
How do I write the exception from printStackTrace() into a text file in Java?
I need to capture the exception in a text file in Java. For example: Using getMessage() works, but it only shows the error message. I want all the information in the printStackTrace() including line numbers. Answer It accepts a PrintStream as a parameter; see the documentation. See also Difference between pri…
Could not autowire field in spring. why?
I keep getting this error, and can’t figure out why.. yes I know there many people had similar issues, but reading the answers they got, does not solve my problem. org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘contactController’: Injection of autowir…
Network is unreachable?
I want to run a cyc (opencyc) Java class, but when I run this class I got an error mentioning that the network is unreachable. I am working on NetBeans 7.0 and opencyc 2.0 win 32 version. I am using localhost (127.0.0.1) to test. The error is below. Why is this happening? How can I connect to the cyc? Answer
Any way to ignore only “connection reset by peer” IOExceptions
I am getting really annoyed with loads of IOExceptions from socket read calls due to network problems. Normally it simply means someone killed the child process or the network went down badly (VPN connection dropped etc). My server cannot do anything but I really dont want to see all these errors in the log f…
Guava cache and preserving checked exceptions
I’m refactoring some code to use guava Cache. Initial code: In order not to break something I need to preserve any thrown exception as is, without wrapping it. Current solution appears somewhat ugly: Is there any possible way to make it nicer? Answer Just after writing the question started thinking abou…
No Such Element Exception?
So here is my code: For some reason I get a No Such Element Exception I’m not sure why though. Basically my program is searching through two text files – armor.txt and TreasureClassEx.txt. getTreasureClass receives a treasure class from a monster and searches through the txt until it reaches a bas…
How to generate exceptions from RepaintManager
In connection with my question (may be), I found another exception type that I not able to catch and print-out from SwingWorker thread. How can I to generate RepaintManager exceptions? I read this CheckThreadViolationRepaintManager and this approach by Alexander Potochkin, but nothing seems to solve my issues…
Tracking “hidden” exceptions
I am inspecting the output of a program of mine where from time to time I see a message like “java.lang.NullPointerException” and nothing else. Because this doesn’t come from my code, I am pretty sure, there is some 3rd party library, where some jerk has done something like: catch ( ex ) { p…