playframework - Play authentication error -

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getting error--at line 73

in {module:secure}/app/controllers/secure.java (around line 73)  69:          // check tokens 70:          boolean allowed = false; 71:          try { 72:              // deprecated method name 73:              **allowed = (boolean)security.invoke("authenticate", username, password);** 74:             // allowed = true; 75:          } catch (unsupportedoperationexception e ) { 76:              // official method name 77:              allowed = (boolean)security.invoke("authenticate", username, password); 78:          } 79:          if(validation.haserrors() || !allowed) {

i tried debugg application not find proper reason error.[![enter image description here][1]][1] please tell me how authentication happens in play framework can debugg. not understand code flow.

java version mismatch issue. application required 1.6 , mine java 1.8


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