[Solved] Identify the issue in this method using @CachePut: @CachePut(value = "inventory", key = "#item.id") public void updateInventory(Item item) { // update logic } | Spring Boot

Spring Boot - Caching

Identify the issue in this method using @CachePut:

@CachePut(value = "inventory", key = "#item.id")
public void updateInventory(Item item) {
    // update logic
}

AThe cache name should be specified using cacheNames instead of value.

BThe key expression is invalid because it lacks the # symbol.

CThe method returns void, but @CachePut requires a return value to update the cache.

DThe method should be static to use @CachePut.

Step-by-Step Solution

Solution:

Step 1: Understand @CachePut requirements
@CachePut updates the cache with the method's return value, so the method must return the cached object.
Step 2: Analyze method signature
The method returns void, so no value is available to cache.
Final Answer:
The method returns void, but @CachePut requires a return value to update the cache. -> Option C
Quick Check:
@CachePut needs method return value [OK]

Quick Trick: Method must return value for @CachePut [OK]

Common Mistakes:

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