#vulnerable code 
                                private Probe discoverSpringBootHealthCheck(int initialDelay) {
        try {
            if (hasClass(this.getProject(), "org.springframework.boot.actuate.health.HealthIndicator")) {
                Properties properties = SpringBootUtil.getSpringBootApplicationProperties(this.getProject());
                Integer port = getInteger(properties, SpringBootProperties.MANAGEMENT_PORT, getInteger(properties, SpringBootProperties.SERVER_PORT, DEFAULT_MANAGEMENT_PORT));

                // lets default to adding a spring boot actuator health check
                return new ProbeBuilder().withNewHttpGet().
                        withNewPort(port).withPath("/health").endHttpGet().withInitialDelaySeconds(initialDelay).build();
            }
        } catch (Exception ex) {
            log.error("Error while reading the spring-boot configuration", ex);
        }
        return null;
    } 
                            #location 3 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                private Probe discoverSpringBootHealthCheck(int initialDelay) {
        try {
            if (hasAllClasses(this.getProject(), REQUIRED_CLASSES)) {
                Properties properties = SpringBootUtil.getSpringBootApplicationProperties(this.getProject());
                Integer port = getInteger(properties, SpringBootProperties.MANAGEMENT_PORT, getInteger(properties, SpringBootProperties.SERVER_PORT, DEFAULT_MANAGEMENT_PORT));

                // lets default to adding a spring boot actuator health check
                return new ProbeBuilder().withNewHttpGet().
                        withNewPort(port).withPath("/health").endHttpGet().withInitialDelaySeconds(initialDelay).build();
            }
        } catch (Exception ex) {
            log.error("Error while reading the spring-boot configuration", ex);
        }
        return null;
    }