kotlin-fork/libraries/tools/kotlin-maven-plugin-test/src/it/test-moduleNameDefault/verify.bsh

import java.io.*;

File file = new File(basedir, "target/test-moduleNameDefault-1.0-SNAPSHOT.jar");
if (!file.exists() || !file.isFile()) {
    throw new FileNotFoundException("Could not find generated JAR: " + file);
}