public long METHOD_1 ( int position ) { if ( position < ( data . size ( ) ) ) return data . get ( position ) . VAR_1 ; else return - 1 ; } 

public long METHOD_1 ( int position ) { synchronized ( data ) { if ( position < ( data . size ( ) ) ) return data . get ( position ) . VAR_1 ; else return - 1 ; } } 
