If java doesn't support pointers, then why java compilers raises the NULL POINTER EXCEPTION ? Give perfect solution out of on it that I got it ?

According to my view , java directly not support pointers , as you know JVM seperatly maintains hashmap(which is address) on the OS , So the Null Pointer Exception consider into the JVM HashMap , in the naming it is viewed by pointer but it is not exactly what you think  ......