JAVA.CLASS.MCS : Missing Call to super (Java)

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CodeSonar^® 9.2p0

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Java

JAVA.CLASS.MCS : Missing Call to super (Java)

Summary

A call to super() is missing.

Java allows methods to call their implementation in the superclass, through the super.m(pars) syntax. It is sometimes the case that redefinitions are expected to call their implementation in the superclass. This checker identifies situations where a call to super.m(pars) seems to have been forgotten.

Properties

Class Name

Missing Call to super (Java)

Significance

reliability

Mnemonic

JAVA.CLASS.MCS

Example

public class TestSuper implements Cloneable {
// TestSuper.java
  private final long time = System.currentTimeMillis();

  public void m() {}

  public long getTime() {
    return time;
  }

  @Override
  protected Object clone() {
      return this;  /* "Missing Call to super (Java)" warning issued here
                     * - expect a call to super.clone()
                     */
  }
}

// A.java
public class A extends TestSuper {

  @Override
  public void m() {
      super.m();
  }
}

// B.java
public class B extends TestSuper {

  @Override
  public void m() {
      super.m();
  }
}

// C.java
public class C extends TestSuper {

  @Override
  public void m() {
      super.m();
  }
}

// D.java
public class D extends TestSuper {

  @Override
  public void m() {
  }                 /* "Missing Call to super (Java)" warning issued here
                     * - the three other subclasses of TestSuper call super.m()
                     *   in their redefinitions of m().
                     */
  }

Resolution

Check if a call to super.m(pars) has been forgotten and add it consequently.

Relevant Configuration File Parameters

The following configuration file parameters affect checks for this warning class.

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