Cloneable class without 'clone()' method
Reports classes implementing the Cloneable
interface that don't override the clone()
method.
Such classes use the default implementation of clone()
, which isn't public
but protected
, and which does not copy the mutable state of the class.
A quick-fix is available to generate a basic clone()
method, which can be used as a basis for a properly functioning clone()
method expected from a Cloneable
class.
Example:
public class Data implements Cloneable {
private String[] names;
}
After the quick-fix is applied:
public class Data implements Cloneable {
private String[] names;
@Override
public Data clone() {
try {
Data clone = (Data) super.clone();
// TODO: copy mutable state here, so the clone can't change the internals of the original
return clone;
} catch (CloneNotSupportedException e) {
throw new AssertionError();
}
}
}
- 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.
CloneableClassWithoutClone
Use the Ignore classes cloneable due to inheritance option to ignore classes that are Cloneable
because they inherit from the Cloneable
class.
Use the Ignore when Cloneable is necessary to call clone() method of super class option to ignore classes that require implementing Cloneable
because they call the clone()
method from a superclass.
Here you can find the description of settings available for the Cloneable class without 'clone()' method inspection, and the reference of their default values.
Inspection Details | |
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By default bundled with: | |
Can be installed with plugin: | Java, 243.23126 |
Thanks for your feedback!