Update the build configuration to make the JAR file.

build.gradle

@@ -1,11 +1,21 @@
 plugins {
     id('groovy')
+    id('application')
+    id 'com.github.johnrengelman.shadow' version '7.1.2'
 }
 
 version = "1.0"
 description = "simple-jbdd is a simple BDD testing framework for Java."
 
-// Spock works with Java 1.8 and above
+application {
+    mainClassName = 'space.kklochko.simple_jbdd.Main'
+}
+
+shadowJar {
+    mergeServiceFiles()
+    minimize()
+}
+
 java {
     toolchain {
         languageVersion.set(JavaLanguageVersion.of(17))

pom.xml

@@ -18,6 +18,32 @@
 
   <build>
     <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jar-plugin</artifactId>
+        <version>3.2.2</version>
+        <configuration>
+          <archive>
+            <manifest>
+              <mainClass>space.kklochko.simple_jbdd.Main</mainClass>
+              <addClasspath>true</addClasspath>
+            </manifest>
+          </archive>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-shade-plugin</artifactId>
+        <version>3.4.1</version>
+        <executions>
+          <execution>
+            <phase>package</phase>
+            <goals>
+              <goal>shade</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
       <!-- Mandatory plugins for using Spock -->
       <plugin>
         <!-- The gmavenplus plugin is used to compile Groovy code. To learn more about this plugin,
@@ -124,16 +150,5 @@
       <version>2.2</version>
       <scope>test</scope>
     </dependency>
-    <!-- Dependencies used by examples in this project (not required for using Spock) -->
-    <dependency>
-      <groupId>com.h2database</groupId>
-      <artifactId>h2</artifactId>
-      <version>2.2.222</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.groovy</groupId>
-      <artifactId>groovy-sql</artifactId>
-      <version>${groovy.version}</version>
-    </dependency>
   </dependencies>
 </project>

src/main/java/space/kklochko/simple_jbdd/test_examples/tests/SimpleEmptyTest.java

@@ -0,0 +1,12 @@
+package space.kklochko.simple_jbdd.test_examples.tests;
+
+import space.kklochko.simple_jbdd.annotations.Title;
+import space.kklochko.simple_jbdd.tests.Test;
+
+@Title("A Simple Empty Test for Sum")
+public class SimpleEmptyTest extends Test {
+    public void check() {
+        assert 30 == 10 + 20 + 1;
+    }
+}
+

src/test/groovy/space/kklochko/simple_jbdd/tests/factories/TestCommandFactorySpec.groovy

@@ -1,5 +1,6 @@
 package space.kklochko.simple_jbdd.tests.factories
 
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleEmptyTest
 import space.kklochko.simple_jbdd.test_examples.tests.SimpleGivenGivenWhenWhenThenThenTest
 import space.kklochko.simple_jbdd.test_examples.tests.SimpleGivenWhenThenTest
 import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTest
@@ -33,6 +34,7 @@ class TestCommandFactorySpec extends Specification {
 
         where:
         testClass                                  || expectedBlockCount
+        new SimpleEmptyTest()                      || 0
         new SimpleThenTest()                       || 1
         new SimpleGivenWhenThenTest()              || 3
         new SimpleGivenGivenWhenWhenThenThenTest() || 6

src/test/groovy/space/kklochko/simple_jbdd/tests/loaders/IntegratedClassLoader.groovy

@@ -22,7 +22,7 @@ class IntegratedClassLoader extends Specification {
         def classes = loader.load()
 
         then: "Checking that the test result is expected"
-        4 == classes.size()
+        5 == classes.size()
     }
 
     def "The classes must be represent the Test interface."() {

src/test/groovy/space/kklochko/simple_jbdd/tests/loaders/IntegratedNameClassLoader.groovy

@@ -19,7 +19,7 @@ class IntegratedNameClassLoader extends Specification {
         def classNames = loader.load()
 
         then: "Checking that the test result is expected"
-        4 == classNames.size()
+        5 == classNames.size()
     }
 }
 

src/test/groovy/space/kklochko/simple_jbdd/tests/runners/IntegratedSimpleTestRunnerSpec.groovy

@@ -1,5 +1,6 @@
 package space.kklochko.simple_jbdd.tests.runners
 
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleEmptyTest
 import space.kklochko.simple_jbdd.test_examples.tests.SimpleFailedThenTest
 import space.kklochko.simple_jbdd.test_examples.tests.SimpleGivenGivenWhenWhenThenThenTest
 import space.kklochko.simple_jbdd.test_examples.tests.SimpleGivenWhenThenTest
@@ -40,5 +41,6 @@ class IntegratedSimpleTestRunnerSpec extends Specification {
         new SimpleThenTestWithoutTitle()           || true
         new SimpleFailedThenTest()                 || false
         new SimpleGivenGivenWhenWhenThenThenTest() || true
+        new SimpleEmptyTest()                      || false
     }
 }