}

    static class CustomException extends RuntimeException {
        Thread thread = Thread.currentThread(); // non-serializable field

        CustomException() {
            super(BUILD_ACTION_EXCEPTION_MESSAGE);
        }
    }

import org.gradle.tooling.BuildAction;
import org.gradle.tooling.BuildController;

abstract class BrokenBuildAction implements BuildAction<String> {
    public static final String BUILD_ACTION_EXCEPTION_MESSAGE = "Something went wrong when executing the build action";

    public String execute(BuildController controller) {
        throwException();
        return "";
    }

    abstract void throwException();

        !exceptionString.contains(NotSerializableException.getName())
        exceptionString.contains("Caused by: ${RuntimeExceptionThrowingBrokenBuildAction.CustomException.getName()}: $BrokenBuildAction.BUILD_ACTION_EXCEPTION_MESSAGE")
    }

    def createBuildFileForConfigurationPhaseCheck(int exceptionNestingLevel) {
        file('build.gradle') << """
class CustomException extends Exception {