I am running SonarQube 5 for code quality check after integrating the code with Maven. Sonar is complaining that I should: Either log or rethrow this exception. in following piece of code: What am I missing here? Answer First of all, is this behaviour correct? Seems a bit weird that you are trying to call con…
Tag: exception
ThreeTen-Backport error on Android – ZoneRulesException: No time-zone data files registered
I’m using ThreeTen-Backport library for my Android project (because java.time is not yet implemented in android development). When I write LocalDate today=LocalDate.now(); or LocalTime time=LocalTime.now(); I get the following exception: The same line of code works well in another java project I have, w…
Exception handling with Consumer functions in Java 8
This code gives me a compile error on the line processBatch(batch, this::backupMetacard); The process batch method wraps the consumer in a try/catch block, but Java will not compile the call. Answer The problem is that in the following snippet, the method backupMetacard declares to throw the checked IOExcepti…
Trying to learn Spring: BeanCreationException: Error creating bean with name
Started to learn “Spring in Action” and got a trouble on the very first chapter. I have simple Spring application, built with Maven: pom.xml I have XML application context where I define three beans: As yo see I’ve tried to inject invocations of two particular methods before and after method…
Substituting parameters in log message and add a Throwable in Log4j 2
I am trying to log an exception, and would like to include another variable’s value in the log message. Is there a Logger API that does this? Answer Have you tried looking at ParameterizedMessage? From the docs Parameters: messagePattern – The message “format” string. This will be a St…
How can I overcome ArrayIndexOutOfBoundException for Integer.parseInt(args[0])? [duplicate]
This question already has answers here: String[] args parameter: java.lang.ArrayIndexOutOfBoundsException (3 answers) What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it? (26 answers) Closed 1 year ago. I’ve seen below code in one of the video tutorial.There its executes fine …
Why is throws part of the method signature
Why throws, on a method, is part of its signature? It seems strange to include it. Here is an example where it is in the way: If anyone were to see this method from the outside, they might try to use it without knowing that it is not supported. They would only learn it on trying to run the code.
Getting ‘Exception in thread “main” java.lang.NoClassDefFoundError: org/ini4j/Ini’ error after succesfully compiling source file from the CLI
Background: I am trying to use ini4j for the purpose of parsing config files in the ini format. I run the command: javac -classpath ini4j-0.5.4.jar Driver.java and the compilation goes smoothly…however when I attempt to run the program running: java Driver I get this error: Exception in thread “ma…
How to ignore Exceptions in Java
I have the following code: I would like to execute: test.setSomething2(0); even if test.setSomething(0) (the line above it) throws an exception. Is there a way to do this OTHER than: I have a lot of test.setSomething’s in a row and all of them could throw Exceptions. If they do, I just want to skip that…
Java checked exceptions
I’m trying to understand checked exceptions in Java and have the following query. Is the following correct: If a method has the potential to throw a checked exception, of any type, that exception must either be declared using the throws keyword, or caught by the respective method. If the above is correc…