Issue #18: Generate sources JAR artifact

* Updated workflows to use "sentrysoftware/workflows" `v3`.
* Updated POM to generate the `sources` classifier.
* Removed `Example.java`.

.github/workflows/build.yml

@@ -18,7 +18,7 @@ on:
 
 jobs:
   build:
-    uses: sentrysoftware/workflows/.github/workflows/maven-build.yml@main
+    uses: sentrysoftware/workflows/.github/workflows/maven-build.yml@v3
     with:
       jdkVersion: "17"
       debug: ${{ github.event_name == 'workflow_dispatch' && inputs.debug }}

.github/workflows/deploy.yml

@@ -10,7 +10,7 @@ on:
 
 jobs:
   deploy:
-    uses: sentrysoftware/workflows/.github/workflows/maven-central-deploy.yml@main
+    uses: sentrysoftware/workflows/.github/workflows/maven-central-deploy.yml@v3
     with:
       jdkVersion: "17"
     secrets: inherit

.github/workflows/release.yml

@@ -18,7 +18,7 @@ on:
 
 jobs:
   release:
-    uses: sentrysoftware/workflows/.github/workflows/maven-central-release.yml@main
+    uses: sentrysoftware/workflows/.github/workflows/maven-central-release.yml@v3
     with:
       releaseVersion: ${{ inputs.releaseVersion }}
       developmentVersion: ${{ inputs.developmentVersion }}

pom.xml

@@ -111,6 +111,9 @@
 
 	<build>
 
+		<!-- Tell the maven-source-plugin where to find the sources -->
+		<sourceDirectory>${basedir}/src/main/connector</sourceDirectory>
+
 		<!-- Common configuration for plugins -->
 		<pluginManagement>
 			<plugins>
@@ -146,9 +149,9 @@
 				<executions>
 					<execution>
 						<id>attach-sources</id>
-					<goals>
-						<goal>jar</goal>
-					</goals>
+						<goals>
+							<goal>jar-no-fork</goal>
+						</goals>
 					</execution>
 				</executions>
 			</plugin>