java - Getting nullpointer exception in the last node of singlylinked list -

public class node {     public string name;     public node next;      public node(string name, node next  ){         this.name = name;         this.next = next;      }     public string getname(){         return name;     }     public void setname(string n){         name = n;     }     public node getnext(){         return next;     }     public void setnext(node n){         next = n;     }     public string tostring() {         return "name " + name;     } }  public class linkedlist {      node head = null;      int nodecount= 0;      int counter = 0;      linkedlist(){          head = null;      }    public boolean isempty(){        return  (head != null);    }      public void insertnode( string name ){          if( head == null){             head = new node(name, null);             nodecount++;         }else{             node temp = new node(name, null);             temp.next = head;             head = temp;               nodecount++;         }       }     public node reversetest(node l){              if(l == null || l.next ==null){               return l;           }            node remainingnode =  reversetest(l.next);           node cur = remainingnode;           while(cur.next !=null){               cur=cur.next;           }            l.next = null;           cur.next = l;           return  remainingnode;      }      public boolean searchlinkedlist(node l, string s){         if (l == null)             return false;         else{             while(l !=null){                 if(s.equals(l.name))                     return true;                 l= l.next;             }         }          return false;     }      public string tostring(){           node current = head;         string output = "";         while(current !=null){             output += "[" + current.getname() + "]";              current = current.getnext();         }          return  output;      }   }  public class linkedlistdemo {      public static void main(string[] args){          linkedlist friendlist = new linkedlist();          friendlist.insertnode("first");         friendlist.insertnode("second");         friendlist.insertnode("third");         friendlist.insertnode("fourth");          friendlist.searchlinkedlist(friendlist.head, "hello");          string namelist = friendlist.tostring();         system.out.println(namelist);         system.out.println("finish");      } } 

i have singly linked list. wanted search value not present in linkedlist , in last loop when reaches l = l.next receive npe. don't see mistake here. please point right direction.

as pointed out in comments, there no errors. ide showing last reading of these properties.

when last loop here:

public boolean searchlinkedlist(node l, string s){     if (l == null)         return false;     else{         while(l !=null){             if(s.equals(l.name))                 return true;             l= l.next;         }     }      return false; } 

l indeed equal null; means when ide tries read properties (name , next), (and it, not program's actual output) gets reasonable nullpointerexception.

the program otherwise runs fine.