Avoid overlapping calls to the launcher by returning after each case

lib/src/main/java/com/commonwealthrobotics/JvmManager.java

@@ -78,7 +78,15 @@ public static String getCommandString(String project, String repo, String versio
 		File dest = new File(bindir + name);
 		if (!dest.exists()) {
 			if (type.toLowerCase().contains("zip")) {
-				unzip(jvmArchive, bindir);
+				try {
+					unzip(jvmArchive, bindir);
+				}catch(java.util.zip.ZipException ex) {
+					System.out.println("Failed the extract, erasing and re-downloading");
+					jvmArchive.delete();
+					ex.printStackTrace();
+					return getCommandString(project,  repo,  version,  downloadJsonURL,
+							 sizeOfJson,  progress,  bindir);
+				}
 			}
 			if (type.toLowerCase().contains("tar.gz")) {
 				untar(jvmArchive, bindir);
@@ -218,7 +226,7 @@ private static File download(String version, String downloadJsonURL, long sizeOf
 			pis.addListener(new Listener() {
 				@Override
 				public void process(double percent) {
-					System.out.println("Download percent " + percent);
+					//System.out.println("Download percent " + percent);
 					Platform.runLater(() -> {
 						progress.setProgress(percent);
 					});

lib/src/main/java/com/commonwealthrobotics/LatestFromGithubLaunchUI.java

@@ -137,12 +137,15 @@ public void process(double percent) {
 			launchApplication();
 		}).start();
 	}
-
+	private boolean launched=false;
 	public void launchApplication() {
+		if(launched)
+			throw new RuntimeException("Applicaion is already launched!");
+		launched=true;
 		Platform.runLater(() -> {
 			yesButton.setDisable(true);
 			noButton.setDisable(true);
-			stage.close();
+
 		});
 		new Thread(() -> {
 			String command;
@@ -154,7 +157,9 @@ public void launchApplication() {
 				System.exit(1);
 				return;
 			}
-
+			// Run this later to show downloading the JVM
+			Platform.runLater(() ->stage.close());
+
 			try {
 				Thread.sleep(100);
 			} catch (InterruptedException e1) {
@@ -295,6 +300,7 @@ void initialize() {
 		if (!myVersionFile.exists()) {
 
 			onYes(null);
+			return;
 		} else {
 			try {
 				myVersionString = new String(Files.readAllBytes(Paths.get(myVersionFileString))).trim();
@@ -308,14 +314,19 @@ void initialize() {
 			}
 		}
 		if(!noInternet) {
-			if(myVersionString==null)
+			if(myVersionString==null) {
 				launchApplication();
+				return;
+			}
 			else
 				if (myVersionString.contentEquals(latestVersionString)) {
 					launchApplication();
+					return;
 				}
-		}else
+		}else {
 			onNo(null);
+			return;
+		}
 
 	}
 }