AvoidNoArgumentSuperConstructorCall

Since Checkstyle 8.29

Description

Checks if call to superclass constructor without arguments is present. Such invocation is redundant because constructor body implicitly begins with a superclass constructor invocation super(); See specification for detailed information.

Examples

To configure the check:


<module name="Checker">
  <module name="TreeWalker">
    <module name="AvoidNoArgumentSuperConstructorCall"/>
  </module>
</module>

Example of violations


class SuperClass {
  public SuperClass() {}
  public SuperClass(int arg) {}
}
class Example1 extends SuperClass {
  Example1() {
    super(); // violation
  }

  Example1(int arg) {
    super(arg); // ok, explicit constructor invocation with argument
  }

  Example1(long arg) {
    // ok, no explicit constructor invocation
  }
}

Example of Usage

Checkstyle Style

Violation Messages

super.constructor.call

All messages can be customized if the default message doesn't suit you. Please see the documentation to learn how to.

Package

com.puppycrawl.tools.checkstyle.checks.coding

Parent Module

TreeWalker