For testing a application with TestFX i need to get the actual primary stage of a running application. This means that i haven't the code, i can just run the application through a jar.
Is there any possible solution for this? Scenic View does this already, but i was not able to reproduce this functionallity, especially because it seems that they use the deprecated funtion
Windows.impl_getWindows
which is not working in my case.
Try this:
import com.sun.javafx.robot.impl.FXRobotHelper;
static Collection<Stage> getAllJavaFXStages() {
try {
return FXRobotHelper.getStages();
} catch ( NullPointerException npe ) {
// nasty NPE if no stages exist
return Collections.emptyList();
}
}
```
Based on my own testing framework code: Automaton.
EDIT:
If you want to get a Stage from a different JVM instance than where you're running your code, then there's no simple way.
You're right, ScenicView does it, but it uses tools.jar to do it. This is not a standard jar you get in your runtime, so you must add it manually (placing it in jre/lib/ext should do it, you'll normally find it in lib only).
I tracked down the code where ScenicView seems to be doing it in their BitBucket repo.
Check the function getRunningJavaFXApplications for example.
Have fun using that in your tests!
Related
I am having the following problem:
I have an Enum that was originally declared with 5 elements.
public enum GraphFormat {
DOT,
GML,
PUML,
JSON,
NEO4J,
TEXT {
#Override
public String getFileExtension() {
return ".txt";
}
};
Now I need to add an additional element to it (NEO4J). When I run my code or try to debug it I am getting an exception because the value can't be found in the enum.
I am using IntelliJ as my IDE, and have cleaned the cache, force a rebuild, etc.. and nothing happens. When I look at the .class file created on my target folder, it also has the new element.
Any ideas on what could be causing this issue ?
I found my problem and want to share here what was causing it. My code was actually for a Maven plug-in which I was pointing to another project of mine to run it as a goal. However the pom.xml of my target test project was pointing to the original version of the plug-in instead of the one I am working on, and that version of course is outdated and does not include the new value. Thank you.
I have the following program which adds a method to itself when run. But I have to refresh it every time using the F5 button or the refresh option.
Is there a way I could code the refresh in the program itself so that it refreshes itself after the modification? The project I am working on is a Java application and not an eclipse plugin so as far as I know the refreshLocal() method can't be used.
public class Demo {
public static void main(String[] args) throws IOException, CoreException {
File file = new File("/home/kishan/workspace/Roast/src/Demo.java");
if (file.exists()) {
JavaClassSource javaClass = Roaster.parse(JavaClassSource.class,
file);
javaClass.addMethod().setPublic().setStatic(true)
.setName("newMethod").setReturnTypeVoid()
.setBody("System.out.println(\"newMethod created\");")
.addParameter("String[]", "stringArray");
FileWriter writer = new FileWriter(file);
writer.write(javaClass.toString());
writer.flush();
writer.close();
}
}
}
I have tried using the refreshLocal() method defined in the eclipse JDT but since my project is a Java application the ResourcePlugin.getWorkspace() method does not work giving me a "workspace closed" error. Any suggestion is appreciated.
You see, eclipse runs your Java class within its own dedicated JVM. Thus there is no direct programmatic way of enforcing a refresh within eclipse.
You could check this older question; maybe that could lead to a reasonable workarounds.
On the other hand you might step back and ask yourself why exactly you want to achieve that. Your workflow simply doesn't make much sense when looking at it; as in: when generating code that way, shouldn't that generated code better go in its own specific place?
If you intend to "generate" code frequently to then continue to use it in eclipse; well, that somehow smells like a strange idea.
Eclipse has "Refresh using native hooks or polling" which might might help.
You can find it under Window > Prefrences > General > Workspace.
See On Eclipse, what does "Preferences -> General -> Workspace -> Refresh using native hooks or polling" do?
i'm using the LibGdx framework to create a game and I'm using Eclipse 4.4 (Luna). Whilst i'm debugging my application this method is breaking.
#Override
public void run() {
setName("GLThread " + getId());
if (LOG_THREADS) {
Log.i("GLThread", "starting tid=" + getId());
}
try {
guardedRun();
} catch (InterruptedException e) {
// fall thru and exit normally
} finally {
sGLThreadManager.threadExiting(this);
}
}
inside the GLSurfaceView Android class, with the stack trace:
Thread [GLThread 232] (Suspended (exception NullPointerException))
GLSurfaceView$GLThread.run() line: 1243
I know what a NullPointerException is, I know somewhere is passing a null value, but what I would like to know is how can I find out where?
With these types of questions, I can only assume you'll need more code but I don't know where I should be looking, I'll post code from the Java classes on request if anyone has an idea of where I should be looking.
Note: I'm not using GLSurfaceView directly anywhere in my code, I'm assuming it's a library from Libgdx. Unless it's something i'm missing?
UPDATE: Found the issue in detail.
GLSurfaceView$GLThread.class [in android.opengl [in C:\Users\me\AppData\Local\Android\android-sdk\platforms\android-8\android.jar]] does not exist
Solution:
An AtlasRegion was being called from the renderer class without being assigned a value in the assets class hence the null Exception
What is a NullPointerException, and how do I fix it?
changing that to a field that is declared solved this problem for me on the code side.
For the solution to the backend issue:
GLSurfaceView$GLThread.class [in android.opengl [in C:\Users\me\AppData\Local\Android\android-sdk\platforms\android-8\android.jar]] does not exist
I downloaded source codes from Google, and assigned the source code inside the SDK folder, C:\Users\me\AppData\Local\Android\android-sdk\sources\, if you don't already have a source folder create one, put the sources in there and it should reload the class that was being handled. (in this case GLSurfaceView.class for API 2.2)
Another way In Eclipse 4.4 (Luna) or any other eclipse I do believe, go onto your project folder right click > properties > java build path and assign the source file for android.jar in your dependent libraries.
Basically I have started updating a lot of Heroes spells to 1.7.2 and this update broke the .getHealth() and .getMaxHealth(). I am trying to fix it but I do not know how to. If anyone has some advice or samples I will be in debt. I will place some code where I use the .getHealth() method.
this is the link of the error: http://puu.sh/7BrEP.png. It is saying this method is ambigous for that type.
public void tickHero(Hero hero) {
if ( hero.getPlayer().getHealth() - damage > 1) {
addSpellTarget(hero.getPlayer(), plugin.getCharacterManager().getHero(caster));
damageEntity(hero.getPlayer(), caster, damage, DamageCause.MAGIC);
//hero.getPlayer().damage(damage, caster);
}
}
As of 1.7.2, there are two getHealth() and getMaxHealth() methods. This is becaue of the way Bukkit handled Minecraft changing the way entity health is stored in 1.6. You can read more about this here.
If you aren't using any NMS code, you should use the bukkit.jar in your build path as opposed to craftbukkit.jar. This should resolve your issue easily enough.
If you do need NMS code, you need to have both bukkit.jar AND craftbukkit.jar in your build path. Furthermore, you have to have bukkit.jar above craftbukkit.jar in the build path for it to work.
I'm writing an Eclipse plugin with a custom launch configuration, i.e. a launch() method inside a subclass of LaunchConfigurationDelegate. This method essentially just calls Runtime.exec(), but when I write to System.out from within launch() it goes to the console of the Eclipse instance which is debugging the plugin, rather than to the console of the plugin instance itself. I've analysed the ILaunchConfiguration and ILaunch arguments to the method but cannot find anywhere that they specify any output/error streams I can write to.
As is recommended in the tutorials, I have 2 separate plugins running together; one which handles the UI stuff (LaunchConfigurationTab,LaunchConfigurationTabGroup,LaunchShortcut,) and the other which contains the LaunchConfigurationDelegate itself.
I created a console in my UI plugin using this code, and I can write to it fine from within the UI code. But I cannot figure out how to direct output generated in my non-UI plugin to the console created in my UI plugin.
I've read this post and this one, but they do not specify how to "get ahold" of the output which is generated within the launch() method in the first place.
Any pointers would be really welcome, I am stuck!
Well I finally managed to get something working as follows:
In my LaunchConfigurationDelegate I introduced the following static method:
public static void setConsole(PrintStream ps) {
System.setOut(ps);
System.setErr(ps);
}
Then when creating my console in my UI plugin's PerspectiveFactory I call it as follows:
private void createConsole() {
console = new MessageConsole("My Console", null);
console.activate();
ConsolePlugin.getDefault().getConsoleManager().addConsoles(new IConsole[]{ console });
MessageConsoleStream stream = console.newMessageStream();
MyLaunchConfigurationDelegate.setConsole(new PrintStream(stream));
}
This works, except everytime I close down Eclipse and restart it the console disappears. However when I reset my perspective, the console appears again. So obviously I need that code to be called on startup, not in the PerspectiveFactory itself.
Hope this helps someone.. and if anybody has some input for this last problem (or about my approach in general) please do comment!