Make the jar executable to allow for easier testing.

pom.xml

@@ -40,6 +40,18 @@
 
     <build>
         <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <version>2.4</version>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <mainClass>ro.lmn.maven.mdn.Main</mainClass>
+                        </manifest>
+                    </archive>
+                </configuration>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>

src/main/java/ro/lmn/maven/mdn/Main.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2008-2013 Robert Munteanu
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package ro.lmn.maven.mdn;
+
+import java.io.IOException;
+
+public class Main {
+
+    public static void main(String[] args) throws IOException, InterruptedException {
+
+        Notifier notifier = new Notifier();
+
+        if (args.length > 0 && "failure".equals(args[0])) {
+            notifier.notifySend("Build failed", "Something went wrong...", Notifier.ICON_ERROR);
+        } else {
+            notifier.notifySend("Build successful", "All is right", Notifier.ICON_INFO);
+        }
+
+    }
+
+}

src/main/java/ro/lmn/maven/mdn/Notifier.java

@@ -0,0 +1,85 @@
+/*
+ * Copyright 2008-2013 Robert Munteanu
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package ro.lmn.maven.mdn;
+
+import java.io.IOException;
+
+public class Notifier {
+
+    public static final String ICON_INFO = "dialog-information";
+    public static final String ICON_ERROR = "dialog-error";
+
+    public void notifySend(String title, String details, String icon) throws IOException {
+
+        ProcessBuilder builder = null;
+        OSName os = OSName.getConstantForValue(System.getProperty("os.name"));
+        if (os != null) {
+            switch (os) {
+                case LINUX:
+                    builder = prepareLinuxNotifier(title, details, icon, 2);
+                    break;
+                case MAC:
+                    builder = new ProcessBuilder("terminal-notifier", "-title", title, "-message", details);
+            }
+
+            Process process = builder.start();
+            try {
+                process.waitFor();
+            } catch (InterruptedException e) {
+                Thread.currentThread().interrupt(); // restore interrupted status
+                return;
+            }
+        }
+    }
+
+    /**
+     * Create a notification for GNU/Linux
+     * 
+     * @param title the title of the notification.
+     * @param details the message of the notification.
+     * @param icon the icon to be displayed.
+     * @param timeout the duration after which the notification will be dismissed without the user intervention.
+     * @return the processbuilder for GNU/Linux
+     */
+    private ProcessBuilder prepareLinuxNotifier(String title, String details, String icon, int timeout) {
+        if (Boolean.parseBoolean(System.getenv("KDE_FULL_SESSION"))) {
+            return new ProcessBuilder("/usr/bin/kdialog", "--passivepopup", details, "--title", title, "--icon", icon,
+                    "" + timeout);
+        }
+        return new ProcessBuilder("/usr/bin/notify-send", title, details, "--icon=" + icon, "--hint=int:transient:1");
+    }
+
+    private enum OSName {
+
+        LINUX("Linux"), MAC("Mac OS X");
+
+        private String osName;
+
+        private OSName(String osName) {
+            this.osName = osName;
+        }
+
+        public static OSName getConstantForValue(String value) {
+            for (OSName constant : OSName.values()) {
+                if (constant.osName.equals(value)) {
+                    return constant;
+                }
+            }
+            return null;
+        }
+
+    }
+}

src/main/java/ro/lmn/maven/mdn/NotifySendEventSpy.java

@@ -15,7 +15,6 @@
  */
 package ro.lmn.maven.mdn;
 
-import java.io.IOException;
 import java.util.List;
 
 import org.apache.maven.eventspy.AbstractEventSpy;
@@ -27,14 +26,6 @@
 @Component(role = EventSpy.class)
 public class NotifySendEventSpy extends AbstractEventSpy {
 
-    private static final String ICON_INFO = "dialog-information";
-    private static final String ICON_ERROR = "dialog-error";
-
-    public static void main(String[] args) throws IOException {
-
-        new NotifySendEventSpy().notifySend("Test message", "This is an error!", ICON_ERROR);
-    }
-
     @Override
     public void onEvent(Object event) throws Exception {
 
@@ -51,71 +42,15 @@ public void onEvent(Object event) throws Exception {
         String projectName = ee.getSession().getTopLevelProject().getName();
         List<Throwable> exceptions = ee.getSession().getResult().getExceptions();
 
+        Notifier notifier = new Notifier();
+
         if (exceptions == null || exceptions.isEmpty()) {
-            notifySend("Build successful", "Built " + projectName, ICON_INFO);
+            notifier.notifySend("Build successful", "Built " + projectName, Notifier.ICON_INFO);
         } else {
             String errorMessage = exceptions.get(0).getMessage();
-            notifySend("Build failed", projectName + " failed : " + errorMessage, ICON_ERROR);
+            notifier.notifySend("Build failed", projectName + " failed : " + errorMessage, Notifier.ICON_INFO);
         }
     }
 
-    private void notifySend(String title, String details, String icon) throws IOException {
-
-        ProcessBuilder builder = null;
-        OSName os = OSName.getConstantForValue(System.getProperty("os.name"));
-        if (os != null) {
-            switch (os) {
-                case LINUX: 
-                    builder = prepareLinuxNotifier(title, details, icon, 2);
-                    break;
-                case MAC:
-                    builder = new ProcessBuilder("terminal-notifier", "-title", title, "-message", details);
-            }
-
-            Process process = builder.start();
-            try {
-                process.waitFor();
-            } catch (InterruptedException e) {
-                Thread.currentThread().interrupt(); // restore interrupted status
-                return;
-            }
-        }
-    }
 
-    /**
-     * Create a notification for GNU/Linux
-     * @param title the title of the notification.
-     * @param details the message of the notification.
-     * @param icon the icon to be displayed.
-     * @param timeout the duration after which the notification will be dismissed without the user intervention. 
-     * @return the processbuilder for GNU/Linux
-     */
-    private ProcessBuilder prepareLinuxNotifier(String title, String details, String icon, int timeout) {
-        if(Boolean.parseBoolean(System.getenv("KDE_FULL_SESSION"))) {
-            return new ProcessBuilder("/usr/bin/kdialog", "--passivepopup",  details , "--title",  title, "--icon", icon, "" + timeout);
-        }
-        return new ProcessBuilder("/usr/bin/notify-send", title, details, "--icon=" + icon, "--hint=int:transient:1");
-    }
-
-    private enum OSName {
-
-        LINUX("Linux"),
-        MAC("Mac OS X");
-
-        private String osName;
-
-        private OSName(String osName) {
-            this.osName = osName;
-        }
-
-        public static OSName getConstantForValue(String value) {
-            for (OSName constant : OSName.values()) {
-                if (constant.osName.equals(value)) {
-                    return constant;
-                }
-            }
-            return null;
-        }
-
-    }
 }