sonar——Synchronized classes Vector, Hashtable, Stack and StringBuffer should not be used

2024-08-20 23:16:09

It is better to use their new unsynchronized replacements:

ArrayList or LinkedList instead of Vector
Deque instead of Stack
HashMap instead of Hashtable
StringBuilder instead of StringBuffer

Noncompliant Code Example

Vector cats = new Vector();

Compliant Solution

ArrayList cats = new ArrayList();

Exceptions

Use of those synchronized classes is ignored in the signatures of overriding methods.

@Override

public Vector getCats() {...}

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