Instantiation of utility class
Reports instantiation of utility classes using the new keyword.
In utility classes, all fields and methods are static. Instantiation of such classes is most likely unnecessary and indicates a mistake.
Example:
class MyUtils {
public static double cube(double x) {
return x * x * x;
}
}
class Main {
public static void main(String[] args) {
// Instantiation of utility class
MyUtils utils = new MyUtils();
}
}To prevent utility classes from being instantiated, it's recommended to use a private constructor.
- By ID
Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.
InstantiationOfUtilityClass
You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:
//noinspection InstantiationOfUtilityClassnote
Actual comment syntax will depend on the code language you are working with
More detailed instructions as well as other ways and options that you have can be found in the product documentation:
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By default bundled with: |