The ‘unchecked warnings’ is quite popular warning message in Java. However, if you insist this is an invalid warning, and there are no ways to solve it without compromising the existing program functionality. You may just use @SuppressWarnings(“unchecked”) to suppress unchecked warnings in Java.

1. In Class

If applied to class level, all the methods and members in this class will ignore the unchecked warnings message.

@SuppressWarnings("unchecked")
public class classA{...}

2. In Method

If applied to method level, only this method will ignore the unchecked warnings message.

@SuppressWarnings("unchecked")
private void method1(){...}

3. In Property

If applied to property level, only this property will ignore the unchecked warnings message.

@SuppressWarnings("unchecked")
private List list1;

As conclusion, suppress an unchecked warning is like hiding a potential bug, it’s better to find the cause of the unchecked warning and fix it :)

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