{
this.paragraphRenderBox = paragraphRenderBox;
final RenderBox pool = (RenderBox) paragraphRenderBox.getPool().deriveFrozen(false);
final RenderBox lineboxContainer = this.paragraphRenderBox.createLineboxContainer();
lineboxContainer.clear();
lineboxContainer.addGeneratedChild(pool);
this.paragraphRenderBox.setLineBoxAge(0);
this.insertationPoint = pool;
}
public boolean isWritable()