Hello world

MyFirstBundle/bnd.bnd

@@ -0,0 +1,7 @@
+Bundle-Version: 1.0.0
+Private-Package: MyFirstBundle
+
+-buildfeatures:
+-buildpath:
+
+Bundle-Activator: MyFirstBundle.Activator

MyFirstBundle/src/MyFirstBundle/Activator.java

@@ -0,0 +1,28 @@
+package MyFirstBundle;
+
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+
+public class Activator implements BundleActivator {
+    private Thread thread;
+
+    @Override
+    public void start(BundleContext bundleContext) throws Exception {
+        thread = new Thread(() -> {
+            try {
+                while (true) {
+                    System.out.println("Hello!");
+                    Thread.sleep(2000);
+                }
+            } catch (InterruptedException e) {
+                System.out.println("MyFirstBundle stopped");
+            }
+        });
+        thread.start();
+    }
+
+    @Override
+    public void stop(BundleContext bundleContext) throws Exception {
+        thread.interrupt();
+    }
+}