  To each variety $X$ and a nonnegative integer $m$, there is a space $X_m$
over $X$, called the jet scheme of $X$ of order $m$, parametrizing $m$-th jets
on $X$. Its fiber over a singular point of $X$ is called a singular fiber. For
a surface with a rational double point, Mourtada gave a one-to-one
correspondence between the irreducible components of the singular fiber of
$X_m$ and the exceptional curves of the minimal resolution of $X$ for $m \gg
0$.
  In this paper, for a surface $X$ over complex number with a singularity of
$A_n$ or $D_4$-type, we study the intersections of irreducible components of
the singular fiber and construct a graph using this information. The vertices
of the graph correspond to irreducible components of the singular fiber and two
vertices are connected when the intersection of the corresponding components is
maximal for the inclusion relation. In the case of $A_n$ or $D_4$-type
singularity, we show that this graph is isomorphic to the resolution graph for
$m \gg 0$.
