Serializable class with unconstructable ancestor

Reports Serializable classes whose closest non-serializable ancestor doesn't have a no-argument constructor. Such classes cannot be deserialized and will fail with an InvalidClassException.

Example:

class Ancestor {
  private String name;
  Ancestor(String name) {
    this.name = name;
  }
}

// warning on this class because the superclass is not
// serializable, and its constructor takes arguments
class Descendant extends Ancestor implements Serializable {
  Descendant() {
    super("Bob");
  }
}

Inspection Details
Available in:	IntelliJ IDEA 2023.3, Qodana for JVM 2023.3
Plugin:	Java, 233.SNAPSHOT

Last modified: 13 July 2023