@Override public boolean isSparse() { return delegate.isSparse(); }
@Override public boolean isSparse() { return delegate.isSparse(); }
@Override public boolean isSparse() { return delegate.isSparse(); }
@Override public boolean isSparse() { return delegate.isSparse(); }
@Override public boolean isSparse() { return delegate.isSparse(); }
@Override public boolean isSparse() { return delegate.isSparse(); }
@Override public boolean isSparse() { return delegate.isSparse(); }