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Why you should care

[/vc_column_text][vc_column_text]The difference between private and protected visibility is that child classes can see and use protected members, but they cannot see private ones. Since a final class will have no children, marking the members of a final class protected is confusingly pointless.

Note that the protected members of a class can also be seen and used by other classes that are placed within the same package, this could lead to accidental, unintended access to otherwise private members.[/vc_column_text][vc_empty_space][/vc_column_inner][/vc_row_inner][vc_empty_space height=”12px”][vc_empty_space][vc_separator][vc_column_text]

How we detect

[/vc_column_text][vc_column_text]CAST Highlight counts one occurrence each time a final class has a protected member.

Bad Code

public final class MyFinalClass {
protected String name = "Fred";
protected void setName(String name) {
// ...
}

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References

[/vc_column_text][vc_column_text]https://rules.sonarsource.com/java/tag/confusing/RSPEC-2156[/vc_column_text][vc_empty_space][vc_row_inner][vc_column_inner][vc_single_image image=”5362″ img_size=”full”][vc_column_text]

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