Java string returning null after definition -

as title says, i'm using java , having problems string returning null @ runtime though set previously. i'm using libgdx doesn't complicate @ point, seemingly simple. or i'm tired.

here's code:

        package com.jett.game;  import java.util.arraylist;  import com.badlogic.gdx.gdx; import com.badlogic.gdx.input.keys; import com.badlogic.gdx.screen; import com.badlogic.gdx.graphics.gl20; import com.badlogic.gdx.graphics.orthographiccamera; import com.badlogic.gdx.graphics.texture; import com.badlogic.gdx.graphics.g2d.bitmapfont; import com.badlogic.gdx.graphics.g2d.sprite; import com.badlogic.gdx.graphics.g2d.spritebatch; import com.badlogic.gdx.graphics.g2d.freetype.freetypefontgenerator; import com.badlogic.gdx.graphics.g2d.freetype.freetypefontgenerator.freetypefontparameter; import com.badlogic.gdx.utils.array;  public class gamescreen implements screen{      public orthographiccamera cam;     public player player;      public spritebatch mainbatch;      public array<sprite> firesprites;     public sprite bartablesprite;     public texture choicebanner;     public texture blackboardtex;      public boolean paymentchoice;      public freetypefontgenerator fontgenerator;     public freetypefontparameter fontparameter;     public bitmapfont font;      public int shopmoney = 3000;     public float daytime;     public float firespriteindex;      public customer customer;      public arraylist<favor> favors;     // there should 3 favors @ once. wont break otherwise, become difficult      public gamescreen(){         favors = new arraylist<favor>();         favors.add(new favor(1,"get 50 logs of wood."));         favors.add(new favor(2, "find hammer"));         blackboardtex = new texture(gdx.files.internal("blackboard.png"));         fontgenerator = new freetypefontgenerator(gdx.files.internal("coolville.ttf"));         fontparameter = new freetypefontparameter();         fontparameter.size = 9;         font = fontgenerator.generatefont(fontparameter);         mainbatch = new spritebatch();         player = new player(-50,0);         cam = new orthographiccamera(16*10,9*10);         player.batcher.setprojectionmatrix(cam.combined);         choicebanner = new texture(gdx.files.internal("choicebanner.png"));         bartablesprite = new sprite(new texture(gdx.files.internal("bartable.png")));         firesprites = new array<sprite>();         firesprites.add(new sprite(new texture(gdx.files.internal("fire1.png"))));         firesprites.add(new sprite(new texture(gdx.files.internal("fire2.png"))));         firesprites.add(new sprite(new texture(gdx.files.internal("fire3.png"))));         firesprites.add(new sprite(new texture(gdx.files.internal("fire4.png"))));         firesprites.add(new sprite(new texture(gdx.files.internal("fire5.png"))));         firesprites.add(new sprite(new texture(gdx.files.internal("fire6.png"))));         firesprites.add(new sprite(new texture(gdx.files.internal("fire7.png"))));         mainbatch.setprojectionmatrix(cam.combined);         customer = new dwarfscythe(80, 0);         customer.batcher.setprojectionmatrix(cam.combined);     }      @override     public void render(float delta) {         gdx.app.log("blackboard favors: ", ""+favors.size());         if(customer != null){             if(customer.current_state == customer.talking){                 paymentchoice = true;             }             customer.delta = delta;             if(customer.haspayed){                 paymentchoice = false;                 customer = null;             }         }         gdx.graphics.getgl20().glclear(gl20.gl_color_buffer_bit);         gdx.graphics.getgl20().glclearcolor(0.05f, 0.05f, 0.05f, 1);         player.render();         player.logic(delta);         firespriteindex += delta*5;         mainbatch.begin();         // background         mainbatch.draw(bartablesprite, -48, 0);         mainbatch.draw(firesprites.get((int)firespriteindex), 0, 0);         mainbatch.end();         // people         if(customer != null){             customer.render();             customer.logic();         }         // ui         mainbatch.begin();         mainbatch.draw(blackboardtex, -blackboardtex.getwidth()/2, -blackboardtex.getheight()/2);         gdx.app.log("favor 1 name: ",favors.get(1).name); // returns: favor 1 name: null         //font.draw(mainbatch, favors.get(1).name, -blackboardtex.getwidth()/2+5, blackboardtex.getheight()/2-5);         font.draw(mainbatch, "gold: " + shopmoney, -80, 44);         if(paymentchoice){             mainbatch.draw(choicebanner, -16,-16);             if(gdx.input.iskeyjustpressed(keys.g)){                 // gold                 if(customer.ischeap){                     shopmoney += customer.money/4;                 }                    else{                     shopmoney += customer.money;                 }                 customer.haspayed = true;             }             if(gdx.input.iskeyjustpressed(keys.h)){                 //             }         }         mainbatch.end();         if(firespriteindex >= 6.5f){             firespriteindex = 0;         }     }      @override     public void resize(int width, int height) {         // todo auto-generated method stub      }      @override     public void pause() {         // todo auto-generated method stub      }      @override     public void resume() {         // todo auto-generated method stub      }      @override     public void hide() {         // todo auto-generated method stub      }      @override     public void dispose() {         // todo auto-generated method stub      }      @override     public void show() {         // todo auto-generated method stub      } } 

the problem has been fixed. appears have made error during development of favor class. sorry become subjective, noticed over-complicating adding these classes, when could've added arraylist of strings. that's did, , problem solved.