Parameter type prevents overriding

Reports parameter types of a subclass method that have the same name as the parameter type of the corresponding super method but belong to a different package. In these cases, the subclass method cannot override the super method.

Example:

public class A {
 public void method(Object o) {}
}

public class B extends A {
 public void method(Object o) {} // warning on parameter type
 class Object {}
}

After the quick-fix is applied:

public class A {
 public void method(Object o) {}
}

public class B extends A {
 public void method(java.lang.Object o) {} // new parameter type
 class Object {}
}

Locating this inspection

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.

ParameterTypePreventsOverriding

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Java | Inheritance issues

Suppressing Inspection

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 ParameterTypePreventsOverriding

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

IntelliJ IDEA 2025.2

Inspection Details
By default bundled with:	IntelliJ IDEA 2025.2, Qodana for JVM 2025.2,

Last modified: 18 September 2025