Tag: illegalargumentexception

Java Rest Template throws java.lang.IllegalArgumentException: Comparison method violates its general contract

illegalargumentexception java spring-boot timsort

I am not using any Comparators/Sorting in my Java code, still it is throwing ” java.lang.IllegalArgumentException: Comparison method violates its general contract!” Exception. Below is the piece of code that throws exception on the restTemplate.exchange line on debugging. Started getting this exce…

Invalid version number: Version number may be negative or greater than 255

illegalargumentexception java version

I am getting below error when I try to access a page in my application. I assume that it is due to some version mismatch. How can I trace the issue? The application is not mavenized and hence I am not sure how to check the issue. Atleast if I know which jarfile is giving issue then it will be

parsing csv file dealing with empty value java

csv illegalargumentexception java

I am new to java and practicing parsing csv file. I’ve figured out how to parse and use a constructor to create an instance. However, there are empty strings in my csv file, and the console just throw IllegalArgumentException: No enum constant to me. I’ve referred to: enum valueOf IllegalArgumentE…

Problem with Inner Class. Illegal Start of Expression error

class illegalargumentexception inner-classes java swing

I am practicing using inner classes but am having difficulty with a homework question: It is as follows: Create a Swing component class BetterButtons that extends JPanel and has three Jbutton instances labelled “One”, “Two”, and “Three”. In the constructor of BetterButtons,…