  We consider the Hamilton-Jacobi equation \[{H}(x,Du)+\lambda(x)u=c,\quad x\in
M, \] where $M$ is a connected, closed and smooth Riemannian manifold. The
functions ${H}(x,p)$ and $\lambda(x)$ are continuous. ${H}(x,p)$ is convex,
coercive with respect to $p$, and $\lambda(x)$ changes the signs. The first
breakthrough to this model was achieved by Jin-Yan-Zhao \cite{JYZ} under the
Tonelli conditions. In this paper, we consider more detailed structure of the
viscosity solution set and large time behavior of the viscosity solution on the
Cauchy problem.
