#fixed code
                                public void prepareRemotingContainer()  throws IOException, InterruptedException {
        // if remoting container already exists, we reuse it
        if (context.getRemotingContainer() != null) {
            if (driver.hasContainer(localLauncher, context.getRemotingContainer().getId())) {
                return;
            }
        }
        final ContainerInstance remotingContainer = driver.createRemotingContainer(localLauncher, remotingImage);
        context.setRemotingContainer(remotingContainer);
    }
#vulnerable code 
                                public void prepareRemotingContainer()  throws IOException, InterruptedException {
        // if remoting container already exists, we reuse it
        if (context.getRemotingContainer() != null) {
            if (driver.hasContainer(localLauncher, context.getRemotingContainer())) {
                return;
            }
        }
        driver.createRemotingContainer(localLauncher, context.getRemotingContainer());
    } 
                            #location 8 
                            #vulnerability type NULL_DEREFERENCE