TiledMapReader error in Java

Skijearz · November 22, 2018, 2:43am

Hello, im trying to use the TiledMap editor with the libtiled libary.
Problem is now that if i try to use TMXMapReader.readMap(“file”) i will get the following error,
my code https://pastebin.com/VymY7x0X.
just commented half of it out because the error is specific to the readMap part.

javax.imageio.IIOException: Can't read input file!
	at javax.imageio.ImageIO.read(Unknown Source)
	at org.mapeditor.core.TileSet.importTileBitmap(TileSet.java:105)
	at org.mapeditor.io.TMXMapReader.unmarshalTileset(TMXMapReader.java:309)
	at org.mapeditor.io.TMXMapReader.unmarshalTilesetFile(TMXMapReader.java:220)
	at org.mapeditor.io.TMXMapReader.unmarshalTileset(TMXMapReader.java:243)
	at org.mapeditor.io.TMXMapReader.buildMap(TMXMapReader.java:721)
	at org.mapeditor.io.TMXMapReader.unmarshal(TMXMapReader.java:764)
	at org.mapeditor.io.TMXMapReader.readMap(TMXMapReader.java:791)
	at de.hsh.inform.darkit.gui.TileReader.buildMap(TileReader.java:39)
	at de.hsh.inform.darkit.gui.GameWindowController.startGame(GameWindowController.java:18)
	at de.hsh.inform.darkit.gui.mainMenuController.startGame(mainMenuController.java:11)
	at de.hsh.inform.darkit.gui.mainMenuController.gameStart(mainMenuController.java:22)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at sun.reflect.misc.Trampoline.invoke(Unknown Source)
	at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at sun.reflect.misc.MethodUtil.invoke(Unknown Source)
	at javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1771)
	at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1657)
	at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
	at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
	at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
	at javafx.event.Event.fireEvent(Event.java:198)
	at javafx.scene.Node.fireEvent(Node.java:8411)
	at javafx.scene.control.Button.fire(Button.java:185)
	at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182)
	at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96)
	at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89)
	at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
	at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
	at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
	at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
	at javafx.event.Event.fireEvent(Event.java:198)
	at javafx.scene.Scene$MouseHandler.process(Scene.java:3757)
	at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)
	at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
	at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)
	at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:394)
	at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$353(GlassViewEventHandler.java:432)
	at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
	at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:431)
	at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
	at com.sun.glass.ui.View.notifyMouse(View.java:937)
	at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
	at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)
	at java.lang.Thread.run(Unknown Source)

bjorn · November 22, 2018, 8:23pm

I think the problem is that your map is loaded from a resource:

map = mapReader.readMap(TileReader.class.getResource("/de/hsh/inform/darkit/gui/map1.tmx").toString());

It may be interesting to put a breakpoint in importTileBitmap to see the value of sourcePath, so that we know which path it fails to load.

In the tests I see the following code to load a map from a resource:

    public void testReadingSewersMap() throws Exception {
        // Arrange
        URL url = getUrlFromResources("sewers/sewers.tmx");

        // Act
        Map map = new TMXMapReader().readMap(url.getPath());

        ...
    }

    ...

    private URL getUrlFromResources(String filename) {
        ClassLoader classLoader = this.getClass().getClassLoader();
        return classLoader.getResource(filename);
    }

Is there a different between using getString or getPath that might explain the error?

Alternatively, maybe you are on Windows and you are affected by the issue where File.separatorChar is used in the following bit of code in readMap:

        xmlPath = filename.substring(0,
                filename.lastIndexOf(File.separatorChar) + 1);

In which case it may help to replace “/” with File.separatorChar in the string you’re passing into readMap.

Skijearz · November 23, 2018, 1:16am

Ty this already helped a lot but, i guess the error is something with the file paths.
As i used the url .getPath() method to call readMap i got an error that the tile file .tsx was not found at “java.io.FileNotFoundException: C:\Users\Dominic\git\test\map1.tmx”(created a new project to get the hang of it" but that is not the src of the project or something its the first folder from the eclipse project.
src of the project should be
“C:\Users\Dominic\git\test\src\application”

Skijearz · November 29, 2018, 12:31am

okay i tried it just like the test example

public void testReadingSewersMap() throws Exception {
        // Arrange
        URL url = getUrlFromResources("sewers/sewers.tmx");

        // Act
        Map map = new TMXMapReader().readMap(url.getPath());

        ...
    }

for the map.tmx it should be fine but it cant find the tsx file :

java.io.FileNotFoundException: C:\Users\Dominic\git\test\map1.tsx (Das System kann die angegebene Datei nicht finden)
	at java.io.FileInputStream.open0(Native Method)
	at java.io.FileInputStream.open(Unknown Source)
	at java.io.FileInputStream.<init>(Unknown Source)
	at java.io.FileInputStream.<init>(Unknown Source)
	at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)
	at sun.net.www.protocol.file.FileURLConnection.getInputStream(Unknown Source)
	at java.net.URL.openStream(Unknown Source)
	at org.mapeditor.io.TMXMapReader.unmarshalTileset(TMXMapReader.java:242)
	at org.mapeditor.io.TMXMapReader.buildMap(TMXMapReader.java:721)
	at org.mapeditor.io.TMXMapReader.unmarshal(TMXMapReader.java:764)
	at org.mapeditor.io.TMXMapReader.readMap(TMXMapReader.java:791)
	at application.Main.start(Main.java:63)
	at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$161(LauncherImpl.java:863)
	at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$174(PlatformImpl.java:326)
	at com.sun.javafx.application.PlatformImpl.lambda$null$172(PlatformImpl.java:295)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.sun.javafx.application.PlatformImpl.lambda$runLater$173(PlatformImpl.java:294)
	at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
	at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
	at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)
	at java.lang.Thread.run(Unknown Source)
Exception in Application start method
java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
	at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at sun.launcher.LauncherHelper$FXHelper.main(Unknown Source)
Caused by: java.lang.RuntimeException: Exception in Application start method
	at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
	at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$154(LauncherImpl.java:182)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
	at application.Main.start(Main.java:72)
	at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$161(LauncherImpl.java:863)
	at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$174(PlatformImpl.java:326)
	at com.sun.javafx.application.PlatformImpl.lambda$null$172(PlatformImpl.java:295)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.sun.javafx.application.PlatformImpl.lambda$runLater$173(PlatformImpl.java:294)
	at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
	at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
	at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)
	... 1 more
Exception running application application.Main

and if i change the source of the Tileset, to match the path where it is located, in the map1.tmx

 <tileset firstgid="1" source="map1.tsx"/>

i get the following error :

javax.imageio.IIOException: Can't read input file!
	at javax.imageio.ImageIO.read(Unknown Source)
	at org.mapeditor.core.TileSet.importTileBitmap(TileSet.java:105)
	at org.mapeditor.io.TMXMapReader.unmarshalTileset(TMXMapReader.java:309)
	at org.mapeditor.io.TMXMapReader.unmarshalTilesetFile(TMXMapReader.java:220)
	at org.mapeditor.io.TMXMapReader.unmarshalTileset(TMXMapReader.java:243)
	at org.mapeditor.io.TMXMapReader.buildMap(TMXMapReader.java:721)
	at org.mapeditor.io.TMXMapReader.unmarshal(TMXMapReader.java:764)
	at org.mapeditor.io.TMXMapReader.readMap(TMXMapReader.java:791)
	at application.Main.start(Main.java:63)
	at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$161(LauncherImpl.java:863)
	at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$174(PlatformImpl.java:326)
	at com.sun.javafx.application.PlatformImpl.lambda$null$172(PlatformImpl.java:295)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.sun.javafx.application.PlatformImpl.lambda$runLater$173(PlatformImpl.java:294)
	at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
	at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
	at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)
	at java.lang.Thread.run(Unknown Source)
Exception in Application start method
java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
	at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at sun.launcher.LauncherHelper$FXHelper.main(Unknown Source)
Caused by: java.lang.RuntimeException: Exception in Application start method
	at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
	at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$154(LauncherImpl.java:182)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
	at application.Main.start(Main.java:72)
	at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$161(LauncherImpl.java:863)
	at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$174(PlatformImpl.java:326)
	at com.sun.javafx.application.PlatformImpl.lambda$null$172(PlatformImpl.java:295)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.sun.javafx.application.PlatformImpl.lambda$runLater$173(PlatformImpl.java:294)
	at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
	at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
	at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)
	... 1 more
Exception running application application.Main

The breakpoint in importTileBitmap gets me this

  sourcePath = ../../../semester_3_projekt/test/src/application/Room_blue.png

Another question for me is, will the libtiled.jar allow me to build the files into a jar because everytime i try to build an .jar file and start it, it will search in the folder where my .jar file is and not in the jar itself.

C:/Users/Dominic/Desktop/ java -jar test.jar

the run examlpe above would give me this location where the libtiled.jar searches for my resources

file:C:/Users/Dominic/Desktop/

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TiledMapReader error in Java

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