ServiceNow Import Sets and Transform Maps
ServiceNow Import Sets and Transform Maps. Learn the reasoning, a practical example, common mistakes and an interview exercise.
~2 min readread →
Developer interview notes & guides — Page 30
Focused explanations and longer guides, with worked scenarios, common mistakes and interview exercises across every chapter.
level:
Showing 697–720 of 825 articles
ServiceNow Incident, Problem and Change Roles
ServiceNow Incident, Problem and Change Roles. Learn the reasoning, a practical example, common mistakes and an interview exercise.
~2 min readread →
ServiceNow Integrations and Retry-Safe Operations
ServiceNow Integrations and Retry-Safe Operations. Learn the reasoning, a practical example, common mistakes and an interview exercise.
~2 min readread →
ServiceNow Reference Fields and Record Identity
ServiceNow Reference Fields and Record Identity. Learn the reasoning, a practical example, common mistakes and an interview exercise.
~2 min readread →
ServiceNow Business Rule Conditions and Scope
ServiceNow Business Rule Conditions and Scope. Learn the reasoning, a practical example, common mistakes and an interview exercise.
~2 min readread →
ServiceNow Scoped Applications and Cross-Scope Access
ServiceNow Scoped Applications and Cross-Scope Access. Learn the reasoning, a practical example, common mistakes and an interview exercise.
~2 min readread →
ServiceNow Script Includes and Reusable Server Logic
ServiceNow Script Includes and Reusable Server Logic. Learn the reasoning, a practical example, common mistakes and an interview exercise.
~2 min readread →
ServiceNow Table Inheritance and Shared Behavior
ServiceNow Table Inheritance and Shared Behavior. Learn the reasoning, a practical example, common mistakes and an interview exercise.
~2 min readread →
ServiceNow UI Policies and Form Behavior
ServiceNow UI Policies and Form Behavior. Learn the reasoning, a practical example, common mistakes and an interview exercise.
~2 min readread →
ServiceNow Update Sets and Deployment Scope
ServiceNow Update Sets and Deployment Scope. Learn the reasoning, a practical example, common mistakes and an interview exercise.
~2 min readread →
Spring Actuator Exposure and Operational Access
Which Spring Boot Actuator endpoints to expose, how exposure differs from authorization, and how to lock down env, heapdump and health details.
~6 min readread →
Spring Boot Auto-Configuration and Explicit Overrides
How Spring Boot auto-configuration works: AutoConfiguration.imports, @ConditionalOnMissingBean, the conditions report, and safe overrides.
~6 min readread →
Spring Bean Scopes and Shared Mutable State
Spring bean scopes explained: why singletons must be stateless, injecting prototype or request beans into singletons, and scoped proxies.
~6 min readread →
Spring Configuration Properties and Validation
Bind Spring Boot settings to typed @ConfigurationProperties records, validate them at startup, and know when @Value is still the right tool.
~6 min readread →
Spring Constructor Injection and Required Dependencies
Why Spring recommends constructor injection over @Autowired fields: final dependencies, plain unit tests, fail-fast startup and visible cycles.
~6 min readread →
Spring CSRF Protection and Authentication Transport
When Spring Security CSRF protection is needed: cookie sessions vs bearer tokens, SameSite, CookieCsrfTokenRepository and SPA setups in Boot 3.
~6 min readread →
Spring Controller Advice and Error Responses
Map Spring Boot exceptions to stable HTTP errors with @RestControllerAdvice and ProblemDetail, without leaking stack traces or internals.
~6 min readread →
Spring HTTP Clients and Deadline Ownership
Set connect and read timeouts on Spring RestClient and WebClient, size them from a latency budget, and stop slow calls exhausting threads.
~7 min readread →
Spring JPA Lazy Loading and Session Boundaries
Why Hibernate throws LazyInitializationException in Spring Boot, how open-in-view hides it, and how fetch joins, entity graphs and DTOs fix it.
~6 min readread →
Spring JPA N-Plus-One Query Diagnosis
Detect and fix JPA N+1 selects in Spring Boot with fetch joins, @EntityGraph, batch fetching and DTO queries, then prove it with a test.
~6 min readread →
Spring Metrics Tags and Cardinality
Why unbounded Micrometer tags like user IDs or raw URLs blow up Prometheus, how Spring Boot templates URIs, and how to cap tag cardinality.
~6 min readread →
Spring JPA Optimistic Locking and Conflicts
How JPA @Version prevents lost updates in Spring Boot, what ObjectOptimisticLockingFailureException means, and when to retry or return 409.
~6 min readread →
Spring Profiles and Environment Differences
Use Spring Boot profiles for environment differences without hiding behaviour: profile files, @Profile beans, groups, and config precedence.
~6 min readread →
Spring Repository Tests and Database Fidelity
What @DataJpaTest loads, why its rollback and embedded database can hide bugs, and how to test Spring Data repositories with Testcontainers.
~6 min readread →
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