org.sonar.l10n.java.rules.squid.S2225.html Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of java-checks Show documentation

The newest version!

Calling toString() or clone() on an object should always return a string or an object. Returning null instead contravenes the method's implicit contract.
Noncompliant Code Example

public override string ToString () {
  if (this.collection.Count == 0) {
    return null; // Noncompliant
  } else {
    // ...
 
Compliant Solution

public override string ToString () {
  if (this.collection.Count == 0) {
    return "";
  } else {
    // ...
 
See


 MITRE CWE-476 : NULL Pointer Dereference