Add keyword Launch Swing Application In Separate Thread

Author: psaikkonen

src/main/java/javafxlibrary/keywords/AdditionalKeywords/ApplicationLauncher.java

@@ -31,6 +31,7 @@
 import java.net.URLClassLoader;
 import java.util.*;
 
+import static javafxlibrary.utils.HelperFunctions.createThreadedWrapperApplication;
 import static javafxlibrary.utils.HelperFunctions.createWrapperApplication;
 import static javafxlibrary.utils.HelperFunctions.getMainClassFromJarFile;
 
@@ -66,21 +67,40 @@ public void launchJavafxApplication(String appName, String... appArgs)  {
     @ArgumentNames({"appName", "*args"})
     public void launchSwingApplication(String appName, String... appArgs) {
         RobotLog.info("Starting application:" + appName);
-        Class c;
+        Class c = getMainClass(appName);
+        Application app = createWrapperApplication(c, appArgs);
+        createNewSession(app);
+        RobotLog.info("Application: " + appName + " started.");
+    }
+
+    @RobotKeyword("Creates a wrapper application the same way as in `Launch Swing Application`, but starts it in a new " +
+            "thread. This is required when main method of the test application is blocked and execution does not " +
+            "return after calling it until the application gets closed. Be sure to set the library timeout with " +
+            "`Set Timeout` so that the test application will have enough time to load, as the test execution will " +
+            "continue instantly after calling the main method.\n\n"
+            + "``appName`` is the name of the application to launch. \n\n"
+            + "``appArgs`` is a list of arguments to be passed for the application. \n\n"
+            + "Example:\n"
+            + "| Launch Swing Application In Separate Thread | _javafxlibrary.testapps.SwingApplication |\n"
+            + "| Launch Swing Application In Separate Thread | _TestApplication.jar_ |\n")
+    @ArgumentNames({"appName", "*args"})
+    public void launchSwingApplicationInSeparateThread(String appName, String... appArgs) {
+        RobotLog.info("Starting application:" + appName);
+        Class c = getMainClass(appName);
+        Application app = createThreadedWrapperApplication(c, appArgs);
+        createNewSession(app);
+        RobotLog.info("Application: " + appName + " started.");
+    }
 
+    private Class getMainClass(String appName) {
         try {
             if (appName.endsWith(".jar"))
-                c = getMainClassFromJarFile(appName);
+                return getMainClassFromJarFile(appName);
             else
-                c = Class.forName(appName);
-
+                return Class.forName(appName);
         } catch (ClassNotFoundException e) {
             throw new JavaFXLibraryNonFatalException("Unable to launch application: " + appName, e);
         }
-
-        Application app = createWrapperApplication(c, appArgs);
-        createNewSession(app);
-        RobotLog.info("Application: " + appName + " started.");
     }
 
     private void _addPathToClassPath(String path) {

src/main/java/javafxlibrary/utils/HelperFunctions.java

@@ -842,6 +842,28 @@ public void start(Stage primaryStage) {
         }
     }
 
+    public static Application createThreadedWrapperApplication(Class c, String... appArgs) {
+        try {
+            Method main = c.getMethod("main", String[].class);
+            return new Application() {
+                @Override
+                public void start(Stage primaryStage) {
+                    Thread t = new Thread (() -> {
+                        try {
+                            main.invoke(null, (Object) appArgs);
+
+                        } catch (IllegalAccessException | InvocationTargetException e) {
+                            throw new JavaFXLibraryNonFatalException("Unable to launch application: " + c.getName(), e);
+                        }
+                    });
+                    t.start();
+                }
+            };
+        } catch (NoSuchMethodException e) {
+            throw new JavaFXLibraryNonFatalException("Couldn't create wrapper application for " + c.getName(), e);
+        }
+    }
+
     public static Finder createFinder() {
         return new Finder();
     }