#fixed code
                                @Override
    public void restoreState(Object[] state) {
        eventChunk = (ComplexEventChunk<ComplexEvent>) state[0];
        //endOfChunk = (Boolean) state[1];
    }
#vulnerable code 
                                @Override
    public void restoreState(Object[] state) {
        eventChunk = (ComplexEventChunk<ComplexEvent>) state[0];
        endOfChunk = (Boolean) state[1];
    } 
                            #location 4 
                            #vulnerability type THREAD_SAFETY_VIOLATION