TrafficSim/.idea/runConfigurations.xml

<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="RunConfigurationProducerService">
    <option name="ignoredProducers">
      <set>
        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
      </set>
    </option>
  </component>
</project>