這段代碼只是用來顯示一個視窗并設定它的背景顏色：
public class Code extends JFrame implements GLEventListener {
private GLCanvas myCanvas;
public Code() {
setTitle("Chapter2 - program1");
setSize(800, 600);
setLocation(400, 400);
myCanvas = new GLCanvas();
myCanvas.addGLEventListener(this);
this.add(myCanvas);
setVisible(true);
}
public void display(GLAutoDrawable drawable)
{ GL4 gl = (GL4) GLContext.getCurrentGL();
float[] bkg = { 1.0f, 0.0f, 0.0f, 1.0f };
FloatBuffer bkgBuffer = Buffers.newDirectFloatBuffer(bkg);
gl.glClearBufferfv(GL_COLOR, 0, bkgBuffer);
}
public static void main(String[ ] args) {
new Code();
}
public void init(GLAutoDrawable drawable) { }
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) { }
public void dispose(GLAutoDrawable drawable) { }
我得到的錯誤是這個：
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Index -1 out of bounds for length 1
at jogamp.opengl.windows.wgl.awt.WindowsAWTWGLGraphicsConfigurationFactory.chooseGraphicsConfigurationImpl(WindowsAWTWGLGraphicsConfigurationFactory.java:171)
at com.jogamp.nativewindow.GraphicsConfigurationFactory.chooseGraphicsConfiguration(GraphicsConfigurationFactory.java:424)
at com.jogamp.opengl.awt.GLCanvas.chooseGraphicsConfiguration(GLCanvas.java:1560)
at com.jogamp.opengl.awt.GLCanvas.addNotify(GLCanvas.java:611)
at java.desktop/java.awt.Container.addNotify(Container.java:2804)
at java.desktop/javax.swing.JComponent.addNotify(JComponent.java:4839)
at java.desktop/java.awt.Container.addNotify(Container.java:2804)
at java.desktop/javax.swing.JComponent.addNotify(JComponent.java:4839)
at java.desktop/java.awt.Container.addNotify(Container.java:2804)
at java.desktop/javax.swing.JComponent.addNotify(JComponent.java:4839)
at java.desktop/javax.swing.JRootPane.addNotify(JRootPane.java:729)
at java.desktop/java.awt.Container.addNotify(Container.java:2804)
at java.desktop/java.awt.Window.addNotify(Window.java:791)
at java.desktop/java.awt.Frame.addNotify(Frame.java:495)
at java.desktop/java.awt.Window.show(Window.java:1053)
at java.desktop/java.awt.Component.show(Component.java:1728)
at java.desktop/java.awt.Component.setVisible(Component.java:1675)
at java.desktop/java.awt.Window.setVisible(Window.java:1036)
at Code.<init>(Code.java:19)
at Code.main(Code.java:30)
我正在使用 java 8 和 sdk 17.0
uj5u.com熱心網友回復：
最后我找到了解決方案。我將我的 OpenJDK 版本更改為 11。它可以正常作業，但我不知道為什么。我不知道錯誤出現在哪個確切版本，11 之前的版本似乎有效。
uj5u.com熱心網友回復：
發現這個：https : //forum.jogamp.org/Crash-in-WindowsAWTWGLGraphicsConfigurationFactory-td4040703.html
來源 https://github.com/JogAmp/jogl/blob/master/src/jogl/classes/jogamp/opengl/windows/wgl/awt/WindowsAWTWGLGraphicsConfigurationFactory.java
源代碼：170：if（0 > gcIdx）{171：selectedGC = configs[gcIdx]；在陣列上使用負索引總是會崩潰。
看起來您也在使用負索引。
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