How to write or mock interface methods available in jar?

Having Method like public boolean getConfirmation(int timeout) { Selection Selection; try { Selection = XYZ….

Run Both JUnit 4 and Junit5 With Maven Surefire Plugin – 2020

I see a few people having this issue and am struggling for a few weeks now, but not able to run both JUnit4 and JUnit5 on the same project (I need this to maintain some old tests). I noticed that if I …

Maven Failsafe fails with java.lang.NoClassDefFoundError

I’ve started a new project: PostfixSQLConfig. It’s a simple Spring Boot application that is essentialy supposed to provide CRUD access for 4 simple databse tables. I wrote the the repository for the …

NullPointerException on validating email

I am writing a unit test to check the email validation logic. The logic is throwing null pointer exception when you run the test. But it works fine with emulator. Can someone help me solving this? …

maven error: package org.junit does not exist

I’m trying to create the javadoc with maven and it fails. It also fails when doing the verify. mvn verify I get the following error: (…) [INFO] ————————————————…

What is the correct way to write to temp file during unit tests with Maven?

I have written a unit test that writes a file to the file-system, given no path it writes to the working directory; so if executed from the project directory it writes in the project root, if in the …