Strange (to me) error on Log

Troubleshooting General Help
1

I get this error in the log. It is the last line, and happens when I close the game. It is not the effect of a crash.



INFO: Display destroyed.

AL lib: ReleaseALC: 1 device not closed



Should I be worrying?



This is the whole program:



Main:



[java]package mygame;



import com.jme3.animation.AnimChannel;

import com.jme3.animation.AnimControl;

import com.jme3.animation.AnimEventListener;

import com.jme3.animation.LoopMode;

import com.jme3.app.SimpleApplication;

import com.jme3.input.KeyInput;

import com.jme3.input.MouseInput;

import com.jme3.input.controls.ActionListener;

import com.jme3.input.controls.KeyTrigger;

import com.jme3.input.controls.MouseButtonTrigger;

import com.jme3.light.DirectionalLight;

import com.jme3.math.ColorRGBA;

import com.jme3.math.Vector3f;

import com.jme3.scene.Node;

import com.jme3.system.AppSettings;

import java.util.Date;



public class Main extends SimpleApplication implements AnimEventListener{

Anim aniControl = new Anim();

AnimChannel Mchannel;

AnimControl Mcontrol;

static Node player;

public static void main(String[] args) {



Main app = new Main();

AppSettings settings=new AppSettings(true);

settings.setWidth(1024);

settings.setHeight(768);

settings.setFullscreen(true);

settings.setBitsPerPixel(32);

settings.setVSync(false);

settings.setFrequency(60);

settings.setFrameRate(60);

app.setSettings(settings);

app.setShowSettings(false);

app.start();

}



@Override

public void simpleInitApp() {

viewPort.setBackgroundColor(ColorRGBA.LightGray);

initKeys();

DirectionalLight dl = new DirectionalLight();

dl.setDirection(new Vector3f(-0.1f, -1f, -1).normalizeLocal());

rootNode.addLight(dl);

player = (Node) assetManager.loadModel("Models/Fin/Fin.j3o");

long lDateTime = new Date().getTime();

Node rock = (Node) assetManager.loadModel("Models/Rock Test/Rock Test.j3o");

rock.setLocalScale(0.05f);

rootNode.attachChild(rock);

long lDateTime2 = new Date().getTime();

System.out.println(lDateTime2 - lDateTime);

//rootNode.attachChild(player);

aniControl.AnimStart();

Mchannel = aniControl.channel;

Mcontrol = aniControl.control;



//flyCam.setEnabled(false);

}



public void onAnimCycleDone(AnimControl control, AnimChannel channel, String animName) {

/if (animName.equals("Kick")) {

channel.setAnim("Stand", 0f);

channel.setLoopMode(LoopMode.DontLoop);

channel.setSpeed(1f);

}/

}



public void onAnimChange(AnimControl control, AnimChannel channel, String animName) {

// unused

}



private void initKeys() {

inputManager.addMapping("Kick", new MouseButtonTrigger(MouseInput.BUTTON_LEFT));;

inputManager.addListener(actionListener, "Kick");

}

private ActionListener actionListener = new ActionListener() {

public void onAction(String name, boolean keyPressed, float tpf) {

if (name.equals("Kick") && !keyPressed) {

if (!Mchannel.getAnimationName().equals("Kick")) {

Mchannel.setAnim("Kick", 0f);

Mchannel.setLoopMode(LoopMode.Cycle);

}

}

}

};

}[/java]



Anim:



[java]package mygame;



import com.jme3.animation.AnimChannel;

import com.jme3.animation.AnimControl;

import com.jme3.animation.AnimEventListener;

import com.jme3.animation.LoopMode;

import com.jme3.app.SimpleApplication;

import com.jme3.input.KeyInput;

import com.jme3.input.controls.ActionListener;

import com.jme3.input.controls.KeyTrigger;

import com.jme3.light.DirectionalLight;

import com.jme3.math.ColorRGBA;

import com.jme3.math.Vector3f;

import com.jme3.scene.Node;

import com.jme3.system.AppSettings;



public class Anim implements AnimEventListener{



AnimChannel channel;

AnimControl control;



public void AnimStart(){



control = Main.player.getControl(AnimControl.class);

control.addListener(this);

channel = control.createChannel();

channel.setAnim("Stand");

channel.setTime(16);

}



public void onAnimCycleDone(AnimControl control, AnimChannel channel, String animName) {

}



public void onAnimChange(AnimControl control, AnimChannel channel, String animName) {

}

}[/java]

2

I get this almost every time an application closes.

I believe it’s a sound device in OpenAL that’s not successfully closed (or something similar?), which in my case leads to stuttering in the sound if I start and stop the application many times and this error is shown.

It’s not terribly bad though, but I’d be happy to know if there is a solution as well.

3

Yeah, me too. Anyone knows anything about it?

4

If you plug “AL lib: ReleaseALC: 1 device not closed” into the little google search bar up in the right below your profile pic + logout button then there are a bunch of hits.

5

I didn’t find any topics dealing with thus issue. When wezrule brought it up, normen’s reply was: "duh, its just a warning lol :stuck_out_tongue: "



However, I was becoming worried since it only occurred in one program I was programming.

6

Well, based on poking into the 5 or 6 other threads I found in that search, it seems to depend on what Java you are running, what OS you have, etc… None of which we know.



I don’t know, though because for me it happens intermittently on seemingly any JME app and I’m running WinXP and regular 32 bit Oracle Java. About as “vanilla” as it gets.

7

Thanks for your help :slight_smile: