import gov.nasa.worldwind.Disposable; //导入依赖的package包/类
public void dispose() {
	if (vertices != null) {
		vertices.clear();
	}
	vertices = null;
	
	if (points != null)
		points.clear();
	points = null;

	subImage = null;

	if (texture != null) {
		GLContext context = ww.getSceneController().getDrawContext().getGLContext();

		int i = context.makeCurrent();
		if (i == GLContext.CONTEXT_CURRENT) {
			((Disposable) texture).dispose();
			context.release();
		} else
			System.err.println("Could not make GLContext current");
	}
	texture = null;
}
 

import gov.nasa.worldwind.Disposable; //导入依赖的package包/类
private void disposeRenderables() {
    if (this.renderables != null && this.renderables.size() > 0) {
        for (Renderable renderable : this.renderables) {
            if (renderable instanceof Disposable) {
                ((Disposable) renderable).dispose();
            }
        }
    }
}