question: return the depth of the superclass matching . 0 means ex matches exactly . returns -1 if there is no match . otherwise , returns depth with thelowest depth winning . concode_field_sep RollbackRuleAttribute ROLLBACK_ON_RUNTIME_EXCEPTIONS concode_elem_sep String exceptionName concode_field_sep String getExceptionName concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep String toString
target: int function ( Throwable arg0 ) { return getDepth ( arg0 . getClass ( ) , 0 ) ; }