How to Automatically Generate `Objects.requireNonNull` Lines for Each Argument in IntelliJ?

How can I quickly generate `Objects.requireNonNull` lines for all method arguments in IntelliJ IDEA?

public void myMethod(String param1, String param2) {
    Objects.requireNonNull(param1);
    Objects.requireNonNull(param2);
    // method implementation
}

In IntelliJ IDEA, you can streamline the process of ensuring that method parameters are non-null by automatically generating `Objects.requireNonNull` statements. This enhances code quality and helps in preventing null pointer exceptions in Java applications.

public void myMethod(String param1, String param2) {
    Objects.requireNonNull(param1);
    Objects.requireNonNull(param2);
    // implementation continues
}

Causes

• Method parameters are often null if not explicitely checked, leading to runtime errors.
• Lack of null checks can slacken the robustness of your code.

Solutions

• Utilizing IntelliJ's built-in code generation features to automatically create null checks for each argument.
• Using a plugin that may offer enhanced support for nullability annotations.

Mistake: Forgetting to check all method parameters leads to potential NPEs.

Solution: Ensure all parameters are checked with `Objects.requireNonNull`.

Mistake: Using the wrong import statement for `Objects.requireNonNull`.

Solution: Make sure to import java.util.Objects to avoid compilation errors.