public void METHOD_1 ( TYPE_1 source , java.lang.String message ) { VAR_1 . append ( ( message + "\n" ) ) ; METHOD_2 ( this . VAR_1 ) ; } 

public void METHOD_1 ( TYPE_1 source , java.lang.String message ) { synchronized ( this ) { VAR_1 . append ( ( message + "\n" ) ) ; METHOD_2 ( this . VAR_1 ) ; } } 
