Once the placeholder is set, it can not be undone.

Author: gamma

src/com/inet/gradle/setup/dmg/DmgBuilder.java

@@ -277,7 +277,7 @@ private void extractApplicationInformation() throws IOException {
         command.add( "--component-plist" );
         command.add( tempPath.getTempString( setup.getAppIdentifier() + ".plist" ) );
         command.add( "--identifier" );
-        command.add( setup.getMainClass() != null ? setup.getMainClass() : setup.getAppIdentifier() );
+        command.add( task.getApplicationIdentifier( setup ) );
         command.add( "--version" );
         command.add( task.getVersion() );
         command.add( "--scripts" );

src/com/inet/gradle/setup/dmg/OSXScriptBuilder.java

@@ -55,7 +55,6 @@ public OSXScriptBuilder( Application application, String template ) throws IOExc
 
         setPlaceholder( "executable", application.getExecutable() );
         setPlaceholder( "displayName", application.getDisplayName() );
-        setPlaceholder( "serviceName", application.getMainClass() );
 
         setPlaceholder( "mainClass", application.getMainClass() );
         setPlaceholder( "mainJar", application.getMainJar() );