Mwen kontinye ekri sou pwoblèm NULL, men chak jou nouvèl la m 'renmande: NULL se toujou viv ak kicking. 
 
 TL;DR: Evite referans NULL ki lakòz crash la kouri lè l sèvi avèk validasyon apwopriye ak null-safe modèl TL;DR: Evite referans NULL ki lakòz crash la kouri lè l sèvi avèk validasyon apwopriye ak null-safe modèl Problèm nan 
 
 
 
 
 
 
 
 Runtime Kras Pifò incidents ak interruptions Pwofesyonèl konpòtman Hard debugging nan Frustrasyon nan itilizatè Instabilite nan sistèm Pa gen konfyans nan  case: Google Cloud nan 
 
 
 
 
 
 Manadjè erè mal: Kòd la crashed olye pou graciously manipile null done Pa gen flè karakteristik: Nouvo kòd pa te etapman rale soti ak kontwole sekirite Instant Global Replacement: Done mal distribiye atravè lemond imedyatman tankou nan Incident Crowdstrike No randomized backoff: Recovery caused infrastructure overload Tès inapwopriye: Skenarè rezo a pa te janm tès pandan deplwaman an Solisyon yo 
 
 
 
 
 
 
 Evite null yo Sèvi ak tcheke null si null yo se deyò kontwòl ou (pou egzanp, yon API ekstèn) Inicialize valè default Implemantasyon nan clauses garde Sèvi ak null objè Pa itilize opsyonèl Rekonstriksyon ️ https://hackernoon.com/code-refactoring-tips-no-015-remove-null Konteks nan Sou 12 jen, 2025, a Kòmanse sou Google Cloud Platform. Pwoteksyon gwo Li afekte dè santèn de sèvis Google Cloud ak Google Workspace atravè lemond soti nan apeprè 10:49 AM a 1:49 PM PDT (3 èdtan total), ak kèk sèvis pran plis tan pou retounen plen. Kòz la te koze pa yon aranjman kaskad nan sistèm jesyon API Google a: 
 
 Pwodwi pou Trigger: Sou 29 Me 2025, Google deplwaye nouvo kòd nan "Service Control" (sistèm jesyon API yo) ki te ajoute tcheke politik kontni adisyonèl. Kòd sa a te gen yon mank kritik. Li manke Li pa te pwoteje pa . Kòmanse erè Pwodwi pou flè 
 
 Eseye nan: Sou 12 jen, yon chanjman politik ki gen blank / Fields yo te peze nan baz baz la mondyal la ki Service Control itilize. Lè Service Control te eseye pwosesis sa yo jaden blan, li te jwenn yon null pousantaj nan koòd la san pwoteje, ki rezilta nan binary yo kraze nan yon lyen infinite. Nul nan 
 
 Efè mondyal: Pandan ke jesyon kwotasyon se mondyal, sa a done korozyon te replike atravè lemond nan senk segonn, ki te fè Service Control kache nan chak rejyon. Nul pousantaj exceptions rive lè ou eseye aksè metòd oswa pwopriyete sou objè ki pa egziste. Sa a rive lè varyab yo gen referans null olye pou enstans objektif valab. Problèm la vin espesyalman danjere nan anviwònman pwodiksyon kote sa yo exceptions ka ranplase aplikasyon ou ak frustre itilizatè. Lang tankou Java, C#, ak JavaScript yo espesyalman predispoze pou pwoblèm sa a, malgre ke karakteristik lang modèn ak modèl ka ede ou evite ka sa yo konplètman. Null yo te yon pwoblèm enpòtan nan endistri lojisyèl pou dè dekad, men enjenyè lojisyèl kontinye ignore yo malgre avèman yo nan kreyatè yo. https://hackernoon.com/null-the-billion-dollar-mistake-8t5z32d6?embedable=true Kòd echantiyon Règleman public class ServiceControlPolicy {
  private SpannerDatabase spannerDB;
  private QuotaManager quotaManager;
    
  public void applyPolicyChange(PolicyChange change) {
      // NULL POINTER: change can be null
      Policy policy = spannerDB.getPolicy(change.getPolicyId());
      // NULL POINTER: policy can be null from the database
      String quotaField = policy.getQuotaField();
      // NULL POINTER: quotaField can be null (blank field)
      quotaManager.updateQuota(quotaField, change.getValue());
  }
    
  public void exerciseQuotaChecks(String region) {
      // NULL POINTER: policies list can be null
      List<Policy> policies = spannerDB.getPoliciesForRegion(region);
      for (Policy policy : policies) {
          // NULL POINTER: individual policy can be null
          String quotaValue = policy.getQuotaField();
          // NULL POINTER: quotaValue can be null before trim()
          quotaManager.checkQuota(quotaValue.trim());
      }
  }
    
  public boolean validatePolicyData(Policy policy) {
      // NULL POINTER: policy parameter can be null
      String quotaField = policy.getQuotaField();
      // NULL POINTER: quotaField can be null before length()
      return quotaField.length() > 0 && 
             !quotaField.equals("null");
  }
    
  public void replicateGlobally(PolicyChange change) {
      List<String> regions = getGlobalRegions();
      for (String region : regions) {
          // NULL POINTER: change.getPolicy() can return null
          spannerDB.insertPolicy(region, change.getPolicy());
      }
  }
}
 Règ public class ServiceControlPolicy {
  private SpannerDatabase spannerDB;
  private QuotaManager quotaManager;
    
  public void applyPolicyChange(PolicyChange change) {
      if (change == null) {
          // Assuming it comes from an external API
          // Beyond your control
          change = new NullPolicyChange();
      }
      
      Policy policy = findPolicyOrNull(change.policyId());
      String quotaField = policy.quotaField();
      if (!quotaField.isEmpty()) {
          quotaManager.updateQuota(quotaField, change.value());
      }
  }
    
  public void exerciseQuotaChecks(String region) {
      if (region == null || region.isEmpty()) {
          // Assuming it comes from an external API
          // Beyond your control
          return;
      }
      
      List<Policy> policies = policiesOrEmpty(region);
      
      for (Policy policy : policies) {
          String quotaValue = policy.quotaField();
          if (!quotaValue.isEmpty()) {
              quotaManager.checkQuota(quotaValue.trim());
          }
      }
  }
    
  public boolean validatePolicyData(Policy policy) {
      if (policy == null) {
          // Assuming it comes from an external API
          // Beyond your control
          // From now on, you wrap it
          policy = new NullPolicy();
      }
      
      String quotaField = policy.quotaField();
      return quotaField.length() > 0;
  }
    
  public void replicateGlobally(PolicyChange change) {
      if (change == null) {
          // Assuming it comes from an external API
          // Beyond your control
          // From now on, you wrap it
          change = new NullPolicyChange();
      }
        
      Policy policy = change.policy();
      if (policy == null) {
          // Assuming it comes from an external API
          // Beyond your control
          // From now on, you wrap it
          policy = new NullPolicy();
      }
        
      List<String> regions = globalRegions();
      for (String region : regions) {
          spannerDB.insertPolicy(region, policy);
      }
  }
    
  private Policy findPolicyOrNull(String policyId) {
      Policy policy = spannerDB.policy(policyId);
      return policy != null ? policy : new NullPolicy();
  }
    
  private List<Policy> policiesOrEmpty(String region) {
      List<Policy> policies = spannerDB.policiesForRegion(region);
      if (policies == null) {
          // This is a good NullObject
          return Collections.emptyList();
      }
      
      return policies.stream()
              .map(p -> p != null ? p : new NullPolicy())
              .collect(Collectors.toList());
  }
}

class NullPolicy extends Policy {
  @Override
  public String quotaField() { return ""; }
    
  @Override
  public String policyId() { return "unknown-policy"; }
    
  @Override
  public Map<String, String> metadata() { 
      return Collections.emptyMap(); 
  }
}

class NullPolicyChange extends PolicyChange {
  @Override
  public String policyId() { return ""; }
    
  @Override
  public String value() { return ""; }
    
  @Override
  public Policy policy() { return new NullPolicy(); }
}
 Deteksyon nan 
 
 [x] Semi otomatik Èske ou ka detekte potansyèl null pointer exceptions pa revize kòd pou dirèk metòd apèl sou objè san yo pa tcheke null. Linters ka egzamine valè retounen soti nan metòd ki ta ka retounen , rechèch pou jaden objè ki pa inisyalize, ak lè l sèvi avèk zouti analiz estatik ki flag potansyèl null dereferences. Null nan IDE modèn yo souvan soulye pwoblèm sa yo ak alantou. Dapre ️ 
 
 Null nan Nivèl 
 
 [x] Mwayen Poukisa bijection se enpòtan ️ nan Objè yo oswa yo pa egziste. Reyèl Mondyal Si ou modèl sa a kòrèk nan pwogram ou, ou kreye yon klè ant reyalite ak kòd. Yon sèl-a-yon sèl korespondans Kòmanse bijection sa a pa pèmèt referans null kreye objè fantom ki egziste nan kòd ou men pa nan mond lan reyèl, ki mennen nan crashes lè ou eseye interaksyon ak entite sa yo ki pa egziste. Si ou chwazi yo rele plak lisans ou "NULL", ou pral jwenn Yon anpil nan tikè aparèy Ki gen jenerasyon Jeneratè AI souvan kreye kòd ak null pointer kwasans paske yo konsantre sou happy path senaryo. Yo souvan kreye metòd apèl san yo pa konsidere kantite ka kote objè ka , espesyalman nan hierarchi objè konplèks oswa lè fè fas ak sous done ekstèn. Nul nan Deteksyon nan Zouti AI ka detekte ak fikse pwoblèm null pointer lè ou bay enstriksyon klè sou pratik pwogramasyon defansiv. Tès yo! Remember: asistans AI fè anpil erè 
 
 Suggested Prompt: Retire tout referans Null Suggested Prompt: Retire tout referans Null 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Without Proper Instructions 
 With Specific Instructions 
 
 
 
 ChatGPT 
 ChatGPT 
 
 
 
 Claude 
 Claude 
 
 
 
 Perplexity 
 Perplexity 
 
 
 
 Copilot 
 Copilot 
 
 
 
 Gemini 
 Gemini 
 
 
 
 DeepSeek 
 DeepSeek 
 
 
 
 Meta AI 
 Meta AI 
 
 
 
 Grok 
 Grok 
 
 
 
 Qwen 
 Qwen Chato Chato Claude nan Claude nan Perpleksite Perpleksite Pilòt Pilòt Twin nan Twin nan DeepSeek DeepSeek Objektif nan Objektif nan Pwodwi Pwodwi Pwen Pwen Konklizyon Eksepsyon null pointer reprezante youn nan erè yo runtime ki pi komen nan pwogramasyon. Èske ou ka retire pifò nan ka sa yo pa implemantasyon tcheke null apwopriye, lè l sèvi avèk modèl konsepsyon Null Objè, ak adopte pratik pwogramasyon defansiv. Yon koòd validasyon ki pi piti pèmèt anpil nan estabilite aplikasyon yo ak eksperyans itilizatè. Relasyon https://hackernoon.com/how-to-find-the-stinky-parts-of-your-code-part-iii-t7h3zkv https://hackernoon.com/how-to-find-the-stinky-parts-of-your-code-part-xliii https://hackernoon.com/how-to-find-the-stinky-parts-of-your-code-part-xxxix https://hackernoon.com/how-to-find-the-stinky-parts-of-your-code-part-xxvi https://hackernoon.com/how-to-find-the-stinky-parts-of-your-code-part-xlii https://hackernoon.com/code-smell-252-nullcustomer?embedable=true https://hackernoon.com/code-smell-260-crowdstrike-null?embedable=true plis enfòmasyon https://status.cloud.google.com/incidents/ow5i3PPK96RduMcb1SsW?embedable=true https://www.wired.com/story/null-license-plate-landed-one-hacker-ticket-hell/?embedable=true https://www.forbes.com/sites/zakdoffman/2019/08/14/hacker-gets-12000-in-parking-tickets-after-null-license-plate-trick-backfires/?embedable=true Disclaimer Kòd odè yo se m ' . Opinyon 
 
 Mwen rele li yon erè milya dola mwen. Li te inivèsite a nan referans null nan 1965. Mwen rele li yon erè milya dola mwen. Li te inivèsite a nan referans null nan 1965. Toni nan https://hackernoon.com/400-thought-provoking-software-engineering-quotes?embedable=true Paj sa a se yon pati nan seri a CodeSmell. https://hackernoon.com/how-to-find-the-stinky-parts-of-your-code-part-i-xqz3evd?embedable=true

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Kòd Smell 304: Null Pointer Eksepsyon - Ki jan yo evite referans NULL ki ka lakòz kouri kouri

Kòd Smell 304: Null Pointer Eksepsyon - Ki jan yo evite referans NULL ki ka lakòz kouri kouri

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