>
> I've got an applet that uses JOGL. It works fine the first time you load the
> page. But if you click the browser's "back" button and then press "forward"
> soon after, I get the following exception:
>
> javax.media.opengl.GLException: Shared Surface not ready (lockSurface):
> WindowsGraphicsDevice[type Windows, connection decon, unitID 0, handle 0x0]
> ->
> WindowsDummyWGLDrawable[Realized true,
>     Factory   jogamp.opengl.windows.wgl.WindowsWGLDrawableFactory@bd5df,
>     handle    0x0,
>     Window    GDISurface[config
> WindowsWGLGraphicsConfiguration[DefaultGraphicsScreen[WindowsGraphicsDevice[type
> Windows, connection decon, unitID 0, handle 0x0], idx 0], pfdID 7,
> ARB-Choosen
> false,
>     requested GLCaps[on-scr, rgba 0x8/8/8/0, opaque, accum-rgba 0/0/0/0,
> dp/st/ms: 16/0/0, dbl, mono  , hw, GLProfile[GL2/GL2]],
>     chosen    GLCaps[7 gdi: on-scr, rgba 0x8/8/8/0, opaque, accum-rgba
> 16/16/16/16, dp/st/ms: 24/0/0, dbl, mono  , hw, GLProfile[GL2/GL2]]],
> displayHandle 0x0, windowHandle 0x308fe, surfaceHandle 0x0, size 64x64]]
>     at
> jogamp.opengl.windows.wgl.WindowsWGLGraphicsConfigurationFactory.preselectGraphicsConfiguration(WindowsWGLGraphicsConfigurationFactory.java:241)
>     at
> jogamp.opengl.windows.wgl.WindowsWGLGraphicsConfiguration.preselectGraphicsConfiguration(WindowsWGLGraphicsConfiguration.java:153)
>     at
> jogamp.opengl.windows.wgl.awt.WindowsAWTWGLGraphicsConfigurationFactory.chooseGraphicsConfigurationImpl(WindowsAWTWGLGraphicsConfigurationFactory.java:128)
>     at
> javax.media.nativewindow.GraphicsConfigurationFactory.chooseGraphicsConfiguration(GraphicsConfigurationFactory.java:239)
>     at
> javax.media.opengl.awt.GLCanvas.chooseGraphicsConfiguration(GLCanvas.java:1010)
>     at javax.media.opengl.awt.GLCanvas.addNotify(GLCanvas.java:530)
>     at java.awt.Container.addImpl(Unknown Source)
>     at java.awt.Container.add(Unknown Source)
>    ..
>
> I've only seen this since upgrading to JOGL 2.0.
>
> Has anyone seen and solved this? I don't know if this is a bug in my code --
> i.e., I'm not calling a proper shutdown method -- or a JOGL bug.