I create simple Java Application project with src and test folders. src folder consists of the class which I test and test folder consists of the class where I describe test. When I start testing, using JUnit 4 I get: Could not find the main class: org.eclipse.jdt.internal.junit.runner.RemoteTestRunner. Program will exit. error. All JAR files are presented in my project.
What did I miss in my project?
That is a class that is part of the Eclipse plugin, it sounds like you have a corrupted installation of Eclipse. Try with a fresh installation.