public class LockSplitShape { 
  protected double x_ = 0.0; 
  protected double y_ = 0.0; 
  protected double width_ = 0.0; 
  protected double height_ = 0.0; 

  protected Object locationLock_ = new Object();
  protected Object dimensionLock_ = new Object();

  double x() { 
    synchronized (locationLock_) {
    return x_; } 
  }
  double y() { 
    synchronized (locationLock_) {
    return y_; } 
  }
  double width(){ 
    synchronized (dimensionLock_) {
      return width_; } 
  }
  double height(){ 
    synchronized (dimensionLock_) {
      return height_; } 
  }
  void adjustLocation() { 
    synchronized (locationLock_) {
      x_ = longCalculation1(); 
      y_ = longCalculation2(); } 
  }
  void adjustDimensions() { 
    synchronized (dimensionLock_) {
      width_ = longCalculation3(); 
      height_ = longCalculation4(); } 
    }
}